WO2023048516A1 - Pd-1 및 il-21을 포함하는 융합단백질 이량체 및 이의 용도 - Google Patents
Pd-1 및 il-21을 포함하는 융합단백질 이량체 및 이의 용도 Download PDFInfo
- Publication number
- WO2023048516A1 WO2023048516A1 PCT/KR2022/014297 KR2022014297W WO2023048516A1 WO 2023048516 A1 WO2023048516 A1 WO 2023048516A1 KR 2022014297 W KR2022014297 W KR 2022014297W WO 2023048516 A1 WO2023048516 A1 WO 2023048516A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fusion protein
- cells
- seq
- bns001
- cancer
- Prior art date
Links
- 108020001507 fusion proteins Proteins 0.000 title claims abstract description 511
- 102000037865 fusion proteins Human genes 0.000 title claims abstract description 511
- 239000013636 protein dimer Substances 0.000 title claims description 37
- 108010074108 interleukin-21 Proteins 0.000 claims abstract description 183
- 102100040678 Programmed cell death protein 1 Human genes 0.000 claims abstract description 78
- 238000011282 treatment Methods 0.000 claims abstract description 43
- 101710089372 Programmed cell death protein 1 Proteins 0.000 claims abstract description 34
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 17
- 239000004480 active ingredient Substances 0.000 claims abstract description 9
- 239000012634 fragment Substances 0.000 claims description 92
- 206010028980 Neoplasm Diseases 0.000 claims description 84
- 201000011510 cancer Diseases 0.000 claims description 52
- 239000013598 vector Substances 0.000 claims description 37
- 206010009944 Colon cancer Diseases 0.000 claims description 33
- 125000003275 alpha amino acid group Chemical group 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 31
- 108091033319 polynucleotide Proteins 0.000 claims description 31
- 102000040430 polynucleotide Human genes 0.000 claims description 31
- 239000002157 polynucleotide Substances 0.000 claims description 31
- 208000001333 Colorectal Neoplasms Diseases 0.000 claims description 25
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 25
- 206010058467 Lung neoplasm malignant Diseases 0.000 claims description 21
- 230000001965 increasing effect Effects 0.000 claims description 21
- 229940079593 drug Drugs 0.000 claims description 20
- 239000003814 drug Substances 0.000 claims description 20
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 20
- 201000005202 lung cancer Diseases 0.000 claims description 19
- 208000020816 lung neoplasm Diseases 0.000 claims description 19
- FWMNVWWHGCHHJJ-SKKKGAJSSA-N 4-amino-1-[(2r)-6-amino-2-[[(2r)-2-[[(2r)-2-[[(2r)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic acid Chemical compound C([C@H](C(=O)N[C@H](CC(C)C)C(=O)N[C@H](CCCCN)C(=O)N1CCC(N)(CC1)C(O)=O)NC(=O)[C@H](N)CC=1C=CC=CC=1)C1=CC=CC=C1 FWMNVWWHGCHHJJ-SKKKGAJSSA-N 0.000 claims description 16
- 206010006187 Breast cancer Diseases 0.000 claims description 16
- 208000026310 Breast neoplasm Diseases 0.000 claims description 16
- 201000001441 melanoma Diseases 0.000 claims description 14
- 108060003951 Immunoglobulin Proteins 0.000 claims description 13
- 102000018358 immunoglobulin Human genes 0.000 claims description 13
- 102220474636 HLA class II histocompatibility antigen, DP alpha 1 chain_Q81R_mutation Human genes 0.000 claims description 6
- 238000006467 substitution reaction Methods 0.000 claims description 6
- 239000003937 drug carrier Substances 0.000 claims description 4
- 206010005003 Bladder cancer Diseases 0.000 claims description 3
- 206010008342 Cervix carcinoma Diseases 0.000 claims description 3
- 208000008839 Kidney Neoplasms Diseases 0.000 claims description 3
- 206010025323 Lymphomas Diseases 0.000 claims description 3
- 206010033128 Ovarian cancer Diseases 0.000 claims description 3
- 206010061535 Ovarian neoplasm Diseases 0.000 claims description 3
- 206010061902 Pancreatic neoplasm Diseases 0.000 claims description 3
- 206010038389 Renal cancer Diseases 0.000 claims description 3
- 208000007097 Urinary Bladder Neoplasms Diseases 0.000 claims description 3
- 208000006105 Uterine Cervical Neoplasms Diseases 0.000 claims description 3
- 201000010881 cervical cancer Diseases 0.000 claims description 3
- 201000010982 kidney cancer Diseases 0.000 claims description 3
- 201000007270 liver cancer Diseases 0.000 claims description 3
- 208000014018 liver neoplasm Diseases 0.000 claims description 3
- 208000015486 malignant pancreatic neoplasm Diseases 0.000 claims description 3
- 201000002528 pancreatic cancer Diseases 0.000 claims description 3
- 208000008443 pancreatic carcinoma Diseases 0.000 claims description 3
- 201000005112 urinary bladder cancer Diseases 0.000 claims description 3
- 208000031261 Acute myeloid leukaemia Diseases 0.000 claims description 2
- 208000003174 Brain Neoplasms Diseases 0.000 claims description 2
- 208000022072 Gallbladder Neoplasms Diseases 0.000 claims description 2
- 206010023825 Laryngeal cancer Diseases 0.000 claims description 2
- 208000033776 Myeloid Acute Leukemia Diseases 0.000 claims description 2
- 206010029260 Neuroblastoma Diseases 0.000 claims description 2
- 206010060862 Prostate cancer Diseases 0.000 claims description 2
- 208000000236 Prostatic Neoplasms Diseases 0.000 claims description 2
- 201000000582 Retinoblastoma Diseases 0.000 claims description 2
- 208000004337 Salivary Gland Neoplasms Diseases 0.000 claims description 2
- 206010061934 Salivary gland cancer Diseases 0.000 claims description 2
- 208000005718 Stomach Neoplasms Diseases 0.000 claims description 2
- 208000024770 Thyroid neoplasm Diseases 0.000 claims description 2
- 201000010175 gallbladder cancer Diseases 0.000 claims description 2
- 206010017758 gastric cancer Diseases 0.000 claims description 2
- 201000010536 head and neck cancer Diseases 0.000 claims description 2
- 208000014829 head and neck neoplasm Diseases 0.000 claims description 2
- 239000000710 homodimer Substances 0.000 claims description 2
- 206010023841 laryngeal neoplasm Diseases 0.000 claims description 2
- 201000011549 stomach cancer Diseases 0.000 claims description 2
- 201000002510 thyroid cancer Diseases 0.000 claims description 2
- 230000006806 disease prevention Effects 0.000 claims 1
- 210000000822 natural killer cell Anatomy 0.000 abstract description 28
- 210000002865 immune cell Anatomy 0.000 abstract description 16
- 230000002085 persistent effect Effects 0.000 abstract description 16
- 239000002246 antineoplastic agent Substances 0.000 abstract description 3
- 230000005965 immune activity Effects 0.000 abstract description 2
- 238000001727 in vivo Methods 0.000 abstract description 2
- 210000002966 serum Anatomy 0.000 abstract description 2
- 229940076838 Immune checkpoint inhibitor Drugs 0.000 abstract 1
- 102000037984 Inhibitory immune checkpoint proteins Human genes 0.000 abstract 1
- 108091008026 Inhibitory immune checkpoint proteins Proteins 0.000 abstract 1
- 239000012274 immune-checkpoint protein inhibitor Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000306 recurrent effect Effects 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 278
- 102100030704 Interleukin-21 Human genes 0.000 description 174
- 230000027455 binding Effects 0.000 description 93
- 230000000694 effects Effects 0.000 description 77
- 210000003819 peripheral blood mononuclear cell Anatomy 0.000 description 74
- 238000002360 preparation method Methods 0.000 description 67
- 101000611936 Homo sapiens Programmed cell death protein 1 Proteins 0.000 description 62
- 239000013604 expression vector Substances 0.000 description 47
- 108090000623 proteins and genes Proteins 0.000 description 46
- 210000004978 chinese hamster ovary cell Anatomy 0.000 description 45
- 238000012790 confirmation Methods 0.000 description 45
- 238000011577 humanized mouse model Methods 0.000 description 44
- 108010076504 Protein Sorting Signals Proteins 0.000 description 43
- 230000001093 anti-cancer Effects 0.000 description 41
- 239000001963 growth medium Substances 0.000 description 41
- 238000004458 analytical method Methods 0.000 description 35
- 239000003446 ligand Substances 0.000 description 35
- 241000699670 Mus sp. Species 0.000 description 34
- 235000001014 amino acid Nutrition 0.000 description 33
- 241000699666 Mus <mouse, genus> Species 0.000 description 32
- 150000001413 amino acids Chemical class 0.000 description 31
- 102000005962 receptors Human genes 0.000 description 31
- 108020003175 receptors Proteins 0.000 description 31
- 102100026120 IgG receptor FcRn large subunit p51 Human genes 0.000 description 30
- 210000001744 T-lymphocyte Anatomy 0.000 description 30
- 229960003852 atezolizumab Drugs 0.000 description 28
- 102000004169 proteins and genes Human genes 0.000 description 25
- 210000001266 CD8-positive T-lymphocyte Anatomy 0.000 description 24
- 239000013641 positive control Substances 0.000 description 24
- 235000018102 proteins Nutrition 0.000 description 24
- 229960002621 pembrolizumab Drugs 0.000 description 23
- 230000028327 secretion Effects 0.000 description 23
- 238000002965 ELISA Methods 0.000 description 22
- 238000001890 transfection Methods 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 229950002916 avelumab Drugs 0.000 description 21
- 210000004369 blood Anatomy 0.000 description 21
- 239000008280 blood Substances 0.000 description 21
- 239000000243 solution Substances 0.000 description 21
- 230000035755 proliferation Effects 0.000 description 20
- 238000011084 recovery Methods 0.000 description 20
- 230000004614 tumor growth Effects 0.000 description 20
- 102000004527 Interleukin-21 Receptors Human genes 0.000 description 18
- 108010017411 Interleukin-21 Receptors Proteins 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 18
- 238000012360 testing method Methods 0.000 description 18
- 102100036011 T-cell surface glycoprotein CD4 Human genes 0.000 description 17
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 17
- 239000005090 green fluorescent protein Substances 0.000 description 17
- 239000013642 negative control Substances 0.000 description 17
- 239000002953 phosphate buffered saline Substances 0.000 description 17
- 238000003786 synthesis reaction Methods 0.000 description 17
- 238000012413 Fluorescence activated cell sorting analysis Methods 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 16
- 102000048362 human PDCD1 Human genes 0.000 description 16
- 238000000746 purification Methods 0.000 description 16
- 230000005760 tumorsuppression Effects 0.000 description 16
- 108010074328 Interferon-gamma Proteins 0.000 description 15
- 241001465754 Metazoa Species 0.000 description 15
- 230000014509 gene expression Effects 0.000 description 15
- 239000002773 nucleotide Substances 0.000 description 15
- 125000003729 nucleotide group Chemical group 0.000 description 15
- 239000011534 wash buffer Substances 0.000 description 15
- 102100037850 Interferon gamma Human genes 0.000 description 14
- 230000000903 blocking effect Effects 0.000 description 14
- UCSJYZPVAKXKNQ-HZYVHMACSA-N streptomycin Chemical compound CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@@H]1[C@](C=O)(O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](NC(N)=N)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]1O UCSJYZPVAKXKNQ-HZYVHMACSA-N 0.000 description 14
- 239000000872 buffer Substances 0.000 description 13
- 201000010099 disease Diseases 0.000 description 13
- 230000006870 function Effects 0.000 description 13
- 230000005764 inhibitory process Effects 0.000 description 13
- 239000002609 medium Substances 0.000 description 13
- 239000000126 substance Substances 0.000 description 13
- 229940066453 tecentriq Drugs 0.000 description 13
- 208000031648 Body Weight Changes Diseases 0.000 description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 12
- 230000004579 body weight change Effects 0.000 description 12
- 230000005880 cancer cell killing Effects 0.000 description 12
- 239000000539 dimer Substances 0.000 description 12
- 241000282412 Homo Species 0.000 description 11
- 239000012980 RPMI-1640 medium Substances 0.000 description 11
- 230000010056 antibody-dependent cellular cytotoxicity Effects 0.000 description 11
- 239000012636 effector Substances 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 11
- 238000002474 experimental method Methods 0.000 description 11
- 238000005406 washing Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000003153 chemical reaction reagent Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000011725 BALB/c mouse Methods 0.000 description 9
- 210000003719 b-lymphocyte Anatomy 0.000 description 9
- 238000012258 culturing Methods 0.000 description 9
- 210000004443 dendritic cell Anatomy 0.000 description 9
- 238000010494 dissociation reaction Methods 0.000 description 9
- 230000005593 dissociations Effects 0.000 description 9
- 230000002401 inhibitory effect Effects 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 230000002829 reductive effect Effects 0.000 description 9
- 239000011780 sodium chloride Substances 0.000 description 9
- 210000001519 tissue Anatomy 0.000 description 9
- 238000002054 transplantation Methods 0.000 description 9
- 210000004881 tumor cell Anatomy 0.000 description 9
- 102100025137 Early activation antigen CD69 Human genes 0.000 description 8
- 101000934374 Homo sapiens Early activation antigen CD69 Proteins 0.000 description 8
- 238000002835 absorbance Methods 0.000 description 8
- 230000004913 activation Effects 0.000 description 8
- 238000003556 assay Methods 0.000 description 8
- 239000006143 cell culture medium Substances 0.000 description 8
- 239000006285 cell suspension Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 230000005934 immune activation Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 230000004083 survival effect Effects 0.000 description 8
- 229930182555 Penicillin Natural products 0.000 description 7
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 7
- 150000001412 amines Chemical class 0.000 description 7
- 239000012131 assay buffer Substances 0.000 description 7
- 238000005119 centrifugation Methods 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 7
- 230000003993 interaction Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 108010068617 neonatal Fc receptor Proteins 0.000 description 7
- 229940049954 penicillin Drugs 0.000 description 7
- 229960002633 ramucirumab Drugs 0.000 description 7
- 238000003998 size exclusion chromatography high performance liquid chromatography Methods 0.000 description 7
- 229960005322 streptomycin Drugs 0.000 description 7
- 235000000346 sugar Nutrition 0.000 description 7
- 230000001225 therapeutic effect Effects 0.000 description 7
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 6
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 6
- 101000599940 Homo sapiens Interferon gamma Proteins 0.000 description 6
- PIWKPBJCKXDKJR-UHFFFAOYSA-N Isoflurane Chemical compound FC(F)OC(Cl)C(F)(F)F PIWKPBJCKXDKJR-UHFFFAOYSA-N 0.000 description 6
- 102100029193 Low affinity immunoglobulin gamma Fc region receptor III-A Human genes 0.000 description 6
- 108060001084 Luciferase Proteins 0.000 description 6
- 239000005089 Luciferase Substances 0.000 description 6
- 241000124008 Mammalia Species 0.000 description 6
- 108700030875 Programmed Cell Death 1 Ligand 2 Proteins 0.000 description 6
- 125000000539 amino acid group Chemical group 0.000 description 6
- 230000003444 anaesthetic effect Effects 0.000 description 6
- 230000037396 body weight Effects 0.000 description 6
- 238000007865 diluting Methods 0.000 description 6
- 238000010790 dilution Methods 0.000 description 6
- 239000012895 dilution Substances 0.000 description 6
- 238000012215 gene cloning Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 229960002725 isoflurane Drugs 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000013612 plasmid Substances 0.000 description 6
- OZFAFGSSMRRTDW-UHFFFAOYSA-N (2,4-dichlorophenyl) benzenesulfonate Chemical compound ClC1=CC(Cl)=CC=C1OS(=O)(=O)C1=CC=CC=C1 OZFAFGSSMRRTDW-UHFFFAOYSA-N 0.000 description 5
- 102000004127 Cytokines Human genes 0.000 description 5
- 108090000695 Cytokines Proteins 0.000 description 5
- 239000012591 Dulbecco’s Phosphate Buffered Saline Substances 0.000 description 5
- 102000004144 Green Fluorescent Proteins Human genes 0.000 description 5
- 101000611935 Mus musculus Programmed cell death protein 1 Proteins 0.000 description 5
- 102000043850 Programmed Cell Death 1 Ligand 2 Human genes 0.000 description 5
- 238000003782 apoptosis assay Methods 0.000 description 5
- 208000029742 colonic neoplasm Diseases 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 210000003162 effector t lymphocyte Anatomy 0.000 description 5
- 210000002540 macrophage Anatomy 0.000 description 5
- 230000001404 mediated effect Effects 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 230000005522 programmed cell death Effects 0.000 description 5
- 238000001742 protein purification Methods 0.000 description 5
- 238000002415 sodium dodecyl sulfate polyacrylamide gel electrophoresis Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 5
- 239000003981 vehicle Substances 0.000 description 5
- 108091026890 Coding region Proteins 0.000 description 4
- 238000012286 ELISA Assay Methods 0.000 description 4
- 108090000331 Firefly luciferases Proteins 0.000 description 4
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 4
- 101001010621 Homo sapiens Interleukin-21 Proteins 0.000 description 4
- 102000037982 Immune checkpoint proteins Human genes 0.000 description 4
- 108091008036 Immune checkpoint proteins Proteins 0.000 description 4
- 101001010620 Mus musculus Interleukin-21 Proteins 0.000 description 4
- 101100519207 Mus musculus Pdcd1 gene Proteins 0.000 description 4
- 229940008421 amivantamab Drugs 0.000 description 4
- 238000010171 animal model Methods 0.000 description 4
- 229960000397 bevacizumab Drugs 0.000 description 4
- 238000004113 cell culture Methods 0.000 description 4
- 229960005395 cetuximab Drugs 0.000 description 4
- 238000011284 combination treatment Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000006471 dimerization reaction Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 210000003527 eukaryotic cell Anatomy 0.000 description 4
- 238000000684 flow cytometry Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 238000003018 immunoassay Methods 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 150000007523 nucleic acids Chemical group 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000009870 specific binding Effects 0.000 description 4
- 230000004936 stimulating effect Effects 0.000 description 4
- 239000012089 stop solution Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 238000013518 transcription Methods 0.000 description 4
- 230000035897 transcription Effects 0.000 description 4
- 230000035899 viability Effects 0.000 description 4
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 3
- 102100031585 ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1 Human genes 0.000 description 3
- 108010088751 Albumins Proteins 0.000 description 3
- 102000009027 Albumins Human genes 0.000 description 3
- 241000283707 Capra Species 0.000 description 3
- 241000701022 Cytomegalovirus Species 0.000 description 3
- 108020004414 DNA Proteins 0.000 description 3
- 238000008157 ELISA kit Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 108010087819 Fc receptors Proteins 0.000 description 3
- 102000009109 Fc receptors Human genes 0.000 description 3
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 3
- 206010060891 General symptom Diseases 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 101000777636 Homo sapiens ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase 1 Proteins 0.000 description 3
- 108010073807 IgG Receptors Proteins 0.000 description 3
- 102000009490 IgG Receptors Human genes 0.000 description 3
- 101710099301 Low affinity immunoglobulin gamma Fc region receptor III-A Proteins 0.000 description 3
- 241000699660 Mus musculus Species 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 229920001213 Polysorbate 20 Polymers 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000006044 T cell activation Effects 0.000 description 3
- 239000000427 antigen Substances 0.000 description 3
- 102000036639 antigens Human genes 0.000 description 3
- 108091007433 antigens Proteins 0.000 description 3
- 238000010923 batch production Methods 0.000 description 3
- 238000004166 bioassay Methods 0.000 description 3
- 238000003501 co-culture Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 235000018417 cysteine Nutrition 0.000 description 3
- 238000012217 deletion Methods 0.000 description 3
- 230000037430 deletion Effects 0.000 description 3
- 210000002472 endoplasmic reticulum Anatomy 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 230000013595 glycosylation Effects 0.000 description 3
- 238000006206 glycosylation reaction Methods 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 210000000987 immune system Anatomy 0.000 description 3
- 230000001976 improved effect Effects 0.000 description 3
- 238000001990 intravenous administration Methods 0.000 description 3
- 210000004962 mammalian cell Anatomy 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 102000039446 nucleic acids Human genes 0.000 description 3
- 108020004707 nucleic acids Proteins 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 3
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 description 3
- 229920001184 polypeptide Polymers 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 102000004196 processed proteins & peptides Human genes 0.000 description 3
- 230000010076 replication Effects 0.000 description 3
- 238000010186 staining Methods 0.000 description 3
- 239000012086 standard solution Substances 0.000 description 3
- 238000001370 static light scattering Methods 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- 238000011426 transformation method Methods 0.000 description 3
- 230000014616 translation Effects 0.000 description 3
- 238000004704 ultra performance liquid chromatography Methods 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 239000013603 viral vector Substances 0.000 description 3
- 239000011782 vitamin Substances 0.000 description 3
- 235000013343 vitamin Nutrition 0.000 description 3
- 229940088594 vitamin Drugs 0.000 description 3
- 229930003231 vitamin Natural products 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 208000023275 Autoimmune disease Diseases 0.000 description 2
- 238000011740 C57BL/6 mouse Methods 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 2
- 101710162677 Glyceraldehyde-3-phosphate dehydrogenase 2 Proteins 0.000 description 2
- 101710128103 Glyceraldehyde-3-phosphate dehydrogenase, testis-specific Proteins 0.000 description 2
- 102100035660 Glyceraldehyde-3-phosphate dehydrogenase, testis-specific Human genes 0.000 description 2
- 239000004471 Glycine Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 101000917858 Homo sapiens Low affinity immunoglobulin gamma Fc region receptor III-A Proteins 0.000 description 2
- 101000917839 Homo sapiens Low affinity immunoglobulin gamma Fc region receptor III-B Proteins 0.000 description 2
- 101000866855 Homo sapiens Major histocompatibility complex class I-related gene protein Proteins 0.000 description 2
- 101000617830 Homo sapiens Sterol O-acyltransferase 1 Proteins 0.000 description 2
- 101000914514 Homo sapiens T-cell-specific surface glycoprotein CD28 Proteins 0.000 description 2
- 101000851370 Homo sapiens Tumor necrosis factor receptor superfamily member 9 Proteins 0.000 description 2
- 102000018682 Interleukin Receptor Common gamma Subunit Human genes 0.000 description 2
- 108010066719 Interleukin Receptor Common gamma Subunit Proteins 0.000 description 2
- 102000000588 Interleukin-2 Human genes 0.000 description 2
- 108010002350 Interleukin-2 Proteins 0.000 description 2
- 241000713666 Lentivirus Species 0.000 description 2
- 102100031328 Major histocompatibility complex class I-related gene protein Human genes 0.000 description 2
- 241000288906 Primates Species 0.000 description 2
- 102100024213 Programmed cell death 1 ligand 2 Human genes 0.000 description 2
- 241000700159 Rattus Species 0.000 description 2
- 241000283984 Rodentia Species 0.000 description 2
- 239000006146 Roswell Park Memorial Institute medium Substances 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 102100021993 Sterol O-acyltransferase 1 Human genes 0.000 description 2
- 101000697584 Streptomyces lavendulae Streptothricin acetyltransferase Proteins 0.000 description 2
- 230000006052 T cell proliferation Effects 0.000 description 2
- 102100027213 T-cell-specific surface glycoprotein CD28 Human genes 0.000 description 2
- 102100022153 Tumor necrosis factor receptor superfamily member 4 Human genes 0.000 description 2
- 101710165473 Tumor necrosis factor receptor superfamily member 4 Proteins 0.000 description 2
- 102100036856 Tumor necrosis factor receptor superfamily member 9 Human genes 0.000 description 2
- 241000251539 Vertebrata <Metazoa> Species 0.000 description 2
- 238000001042 affinity chromatography Methods 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 210000004102 animal cell Anatomy 0.000 description 2
- 230000006907 apoptotic process Effects 0.000 description 2
- 229940120638 avastin Drugs 0.000 description 2
- 108010030694 avidin-horseradish peroxidase complex Proteins 0.000 description 2
- SQVRNKJHWKZAKO-UHFFFAOYSA-N beta-N-Acetyl-D-neuraminic acid Natural products CC(=O)NC1C(O)CC(O)(C(O)=O)OC1C(O)C(O)CO SQVRNKJHWKZAKO-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 210000001185 bone marrow Anatomy 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000003915 cell function Effects 0.000 description 2
- 230000010261 cell growth Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000012228 culture supernatant Substances 0.000 description 2
- 208000035250 cutaneous malignant susceptibility to 1 melanoma Diseases 0.000 description 2
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 description 2
- 230000016396 cytokine production Effects 0.000 description 2
- 230000003013 cytotoxicity Effects 0.000 description 2
- 231100000135 cytotoxicity Toxicity 0.000 description 2
- 230000034994 death Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 231100000673 dose–response relationship Toxicity 0.000 description 2
- 229940082789 erbitux Drugs 0.000 description 2
- 239000012737 fresh medium Substances 0.000 description 2
- 230000033581 fucosylation Effects 0.000 description 2
- 238000010353 genetic engineering Methods 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000001900 immune effect Effects 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 201000005296 lung carcinoma Diseases 0.000 description 2
- 210000003712 lysosome Anatomy 0.000 description 2
- 230000001868 lysosomic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 208000002154 non-small cell lung carcinoma Diseases 0.000 description 2
- 230000001575 pathological effect Effects 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000001236 prokaryotic cell Anatomy 0.000 description 2
- 239000012562 protein A resin Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000003757 reverse transcription PCR Methods 0.000 description 2
- 229940125457 rybrevant Drugs 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000012898 sample dilution Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- SQVRNKJHWKZAKO-OQPLDHBCSA-N sialic acid Chemical compound CC(=O)N[C@@H]1[C@@H](O)C[C@@](O)(C(O)=O)OC1[C@H](O)[C@H](O)CO SQVRNKJHWKZAKO-OQPLDHBCSA-N 0.000 description 2
- 230000019491 signal transduction Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000005549 size reduction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 150000008163 sugars Chemical class 0.000 description 2
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 229910021642 ultra pure water Inorganic materials 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- 241000701161 unidentified adenovirus Species 0.000 description 2
- 241001430294 unidentified retrovirus Species 0.000 description 2
- 210000003556 vascular endothelial cell Anatomy 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- UAIUNKRWKOVEES-UHFFFAOYSA-N 3,3',5,5'-tetramethylbenzidine Chemical compound CC1=C(N)C(C)=CC(C=2C=C(C)C(N)=C(C)C=2)=C1 UAIUNKRWKOVEES-UHFFFAOYSA-N 0.000 description 1
- 102100022717 Atypical chemokine receptor 1 Human genes 0.000 description 1
- 244000063299 Bacillus subtilis Species 0.000 description 1
- 235000014469 Bacillus subtilis Nutrition 0.000 description 1
- 102000014914 Carrier Proteins Human genes 0.000 description 1
- 108020004705 Codon Proteins 0.000 description 1
- 241000702421 Dependoparvovirus Species 0.000 description 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 1
- 231100000491 EC50 Toxicity 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 208000032612 Glial tumor Diseases 0.000 description 1
- 206010018338 Glioma Diseases 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 108010051696 Growth Hormone Proteins 0.000 description 1
- 102000018997 Growth Hormone Human genes 0.000 description 1
- 102100026122 High affinity immunoglobulin gamma Fc receptor I Human genes 0.000 description 1
- 101000678879 Homo sapiens Atypical chemokine receptor 1 Proteins 0.000 description 1
- 101000913074 Homo sapiens High affinity immunoglobulin gamma Fc receptor I Proteins 0.000 description 1
- 101001010593 Homo sapiens Interleukin-21 receptor Proteins 0.000 description 1
- 101000917826 Homo sapiens Low affinity immunoglobulin gamma Fc region receptor II-a Proteins 0.000 description 1
- 101000917824 Homo sapiens Low affinity immunoglobulin gamma Fc region receptor II-b Proteins 0.000 description 1
- 101000581981 Homo sapiens Neural cell adhesion molecule 1 Proteins 0.000 description 1
- 241000701024 Human betaherpesvirus 5 Species 0.000 description 1
- 102000008394 Immunoglobulin Fragments Human genes 0.000 description 1
- 108010021625 Immunoglobulin Fragments Proteins 0.000 description 1
- 101000668058 Infectious salmon anemia virus (isolate Atlantic salmon/Norway/810/9/99) RNA-directed RNA polymerase catalytic subunit Proteins 0.000 description 1
- 239000000232 Lipid Bilayer Substances 0.000 description 1
- 102100029204 Low affinity immunoglobulin gamma Fc region receptor II-a Human genes 0.000 description 1
- 102000018697 Membrane Proteins Human genes 0.000 description 1
- 108010052285 Membrane Proteins Proteins 0.000 description 1
- 101100407308 Mus musculus Pdcd1lg2 gene Proteins 0.000 description 1
- 102100027347 Neural cell adhesion molecule 1 Human genes 0.000 description 1
- 108091028043 Nucleic acid sequence Proteins 0.000 description 1
- -1 PD-1 Proteins 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 206010057249 Phagocytosis Diseases 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 239000012979 RPMI medium Substances 0.000 description 1
- 241000725643 Respiratory syncytial virus Species 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- 108010017324 STAT3 Transcription Factor Proteins 0.000 description 1
- 102100024040 Signal transducer and activator of transcription 3 Human genes 0.000 description 1
- 241000700584 Simplexvirus Species 0.000 description 1
- 239000012505 Superdex™ Substances 0.000 description 1
- 230000033540 T cell apoptotic process Effects 0.000 description 1
- 230000024932 T cell mediated immunity Effects 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 241000700618 Vaccinia virus Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000012556 adjustment buffer Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000002543 antimycotic Substances 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003149 assay kit Methods 0.000 description 1
- 230000001363 autoimmune Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 108091008324 binding proteins Proteins 0.000 description 1
- 230000008827 biological function Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 108010006025 bovine growth hormone Proteins 0.000 description 1
- 201000008275 breast carcinoma Diseases 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000423 cell based assay Methods 0.000 description 1
- 230000024245 cell differentiation Effects 0.000 description 1
- 230000022534 cell killing Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 230000004663 cell proliferation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 201000010989 colorectal carcinoma Diseases 0.000 description 1
- 239000002299 complementary DNA Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 210000004748 cultured cell Anatomy 0.000 description 1
- 150000001945 cysteines Chemical class 0.000 description 1
- 102000003675 cytokine receptors Human genes 0.000 description 1
- 108010057085 cytokine receptors Proteins 0.000 description 1
- 230000001086 cytosolic effect Effects 0.000 description 1
- 230000001472 cytotoxic effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000003413 degradative effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 229960000633 dextran sulfate Drugs 0.000 description 1
- 239000008121 dextrose Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000003828 downregulation Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004520 electroporation Methods 0.000 description 1
- 230000012202 endocytosis Effects 0.000 description 1
- 210000001163 endosome Anatomy 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 102000052116 epidermal growth factor receptor activity proteins Human genes 0.000 description 1
- 108700015053 epidermal growth factor receptor activity proteins Proteins 0.000 description 1
- 239000003797 essential amino acid Substances 0.000 description 1
- 235000020776 essential amino acid Nutrition 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001943 fluorescence-activated cell sorting Methods 0.000 description 1
- 239000012537 formulation buffer Substances 0.000 description 1
- 239000000122 growth hormone Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 102000047008 human IL21R Human genes 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 230000028993 immune response Effects 0.000 description 1
- 230000016784 immunoglobulin production Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
- 230000028709 inflammatory response Effects 0.000 description 1
- 108091008042 inhibitory receptors Proteins 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004068 intracellular signaling Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000644 isotonic solution Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000003670 luciferase enzyme activity assay Methods 0.000 description 1
- 210000004698 lymphocyte Anatomy 0.000 description 1
- 210000005075 mammary gland Anatomy 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000001840 matrix-assisted laser desorption--ionisation time-of-flight mass spectrometry Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 108020004999 messenger RNA Proteins 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013365 molecular weight analysis method Methods 0.000 description 1
- 210000001616 monocyte Anatomy 0.000 description 1
- 238000010172 mouse model Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- YOHYSYJDKVYCJI-UHFFFAOYSA-N n-[3-[[6-[3-(trifluoromethyl)anilino]pyrimidin-4-yl]amino]phenyl]cyclopropanecarboxamide Chemical compound FC(F)(F)C1=CC=CC(NC=2N=CN=C(NC=3C=C(NC(=O)C4CC4)C=CC=3)C=2)=C1 YOHYSYJDKVYCJI-UHFFFAOYSA-N 0.000 description 1
- 210000004897 n-terminal region Anatomy 0.000 description 1
- 210000000581 natural killer T-cell Anatomy 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000002515 oligonucleotide synthesis Methods 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 229940021222 peritoneal dialysis isotonic solution Drugs 0.000 description 1
- 210000001539 phagocyte Anatomy 0.000 description 1
- 230000008782 phagocytosis Effects 0.000 description 1
- 150000008300 phosphoramidites Chemical class 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 108010086652 phytohemagglutinin-P Proteins 0.000 description 1
- 230000008884 pinocytosis Effects 0.000 description 1
- 230000033885 plasminogen activation Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008488 polyadenylation Effects 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011321 prophylaxis Methods 0.000 description 1
- 235000019419 proteases Nutrition 0.000 description 1
- 239000012460 protein solution Substances 0.000 description 1
- 210000001938 protoplast Anatomy 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 210000003289 regulatory T cell Anatomy 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- PCMORTLOPMLEFB-ONEGZZNKSA-N sinapic acid Chemical compound COC1=CC(\C=C\C(O)=O)=CC(OC)=C1O PCMORTLOPMLEFB-ONEGZZNKSA-N 0.000 description 1
- PCMORTLOPMLEFB-UHFFFAOYSA-N sinapinic acid Natural products COC1=CC(C=CC(O)=O)=CC(OC)=C1O PCMORTLOPMLEFB-UHFFFAOYSA-N 0.000 description 1
- 238000001542 size-exclusion chromatography Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- AYEKOFBPNLCAJY-UHFFFAOYSA-O thiamine pyrophosphate Chemical compound CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N AYEKOFBPNLCAJY-UHFFFAOYSA-O 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 150000005691 triesters Chemical class 0.000 description 1
- 108010087967 type I signal peptidase Proteins 0.000 description 1
- 241000701447 unidentified baculovirus Species 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/52—Cytokines; Lymphokines; Interferons
- C07K14/54—Interleukins [IL]
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/705—Receptors; Cell surface antigens; Cell surface determinants
- C07K14/70503—Immunoglobulin superfamily
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
- C07K2319/30—Non-immunoglobulin-derived peptide or protein having an immunoglobulin constant or Fc region, or a fragment thereof, attached thereto
Definitions
- the present invention relates to a fusion protein comprising a PD-1 protein and an IL-21 protein and uses thereof. Specifically, the present invention relates to a novel fusion protein dimer comprising PD-1, IL-21, and long-acting Fc in blood, which has an increased half-life in blood and has an immune enhancing effect, and uses thereof for cancer treatment.
- PD-1 Programmed death receptor-1
- T cell activation mainly involved in the control of T cell activation and can regulate the strength and duration of an immune response.
- PD-1 mediates and maintains body tissue autoimmune tolerance, prevents the immune system from over-activating and damaging autologous tissue during the inflammatory response, thus preventing autoimmune diseases from occurring. It works.
- PD-1 is known to be involved in the development and development of tumor immunity and various autoimmune diseases (Sara Pilotto et.al. , Anticancer Agents Med Chem. , 15(3):307-313 , 2015).
- PD-1 is mainly expressed on the surface of activated T cells, and is also expressed on B cells, NK cells, monocytes, and dendritic cells (DCs).
- the ligands of PD-1, PD-L1 and PD-L2 are expressed on tumor cells, activated B and T cells, dendritic cells, and macrophages.
- PD-1 binds to these ligands and induces T-cell apoptosis, thereby weakening the cellular immune response.
- blocking the PD-1/PD-L1 or PD-L2 pathway is a promising therapeutic approach being explored in many types of cancer research (Miguel F. Sanmamed et. al. , Cancer J. , 20(4): 256-261, 2014).
- IL-21 Interleukin-21
- IL-21 is a cytokine secreted by activated CD4+ T cells and induces the maturation of NK cell precursors from the bone marrow.
- effects such as cytokine production and apoptosis of NK cells It has been reported to increase effector functions.
- Activation of the Jak/STAT signaling pathway is achieved through the interaction of IL-21 with its receptor, IL-21R, resulting in strong and sustained activation of STAT3, which is important for T cell differentiation (Wenjun Ouyang et. al. , Immunity , 28(4):454-467, 2008).
- FcRn protection receptor binding site that lengthens the half-life of the antibody
- FcRn is an MHC class I-related protein expressed in vascular endothelial cells and binds to IgG and albumin.
- Antibody fragments without Fc, i.e., without an FcRn-binding site, have a half-life in the body of around 2 to 3 hours, but IgG1, IgG2, and IgG4 with an FcRn-binding site have an average half-life of 3 weeks in the body, which is longer than other proteins. .
- the present inventors studied to develop an anti-cancer drug with an increased half-life in the body and excellent immune enhancing efficacy.
- a novel fusion protein including PD-1, IL-21 and long-acting Fc in blood activates immune cells
- the present invention was completed by confirming that the half-life was increased without affecting the anticancer activity.
- one aspect of the present invention provides a fusion protein comprising PD-1 protein and IL-21 protein.
- Another aspect of the present invention provides a fusion protein dimer in which the two fusion proteins are combined.
- Another aspect of the present invention provides a polynucleotide encoding the fusion protein.
- Another aspect of the present invention provides a vector containing the polynucleotide.
- Another aspect of the present invention provides a host cell transformed with the vector.
- Another aspect of the present invention provides a pharmaceutical composition for preventing or treating cancer disease comprising the fusion protein or fusion protein dimer as an active ingredient.
- Another aspect of the present invention provides the use of the fusion protein for treating cancer disease.
- a fusion protein containing PD-1, IL-21, and long-acting Fc in the blood can activate immune cells by PD-1 and IL-21, and can maximize half-life in vivo by long-acting Fc in the blood. . Therefore, since the fusion protein can efficiently attack cancer cells, it can be usefully used in the treatment of cancer diseases.
- FIG. 1 shows the obtained fusion proteins (BNS001; PD-1 D-Fc(29)-IL-21, PD-1 D-Fc(41)-IL-21, and PD-1 D-Fc(wt)-IL -21) was confirmed by SDS-PAGE.
- Figure 2 shows the results of analyzing the purity of the fusion protein (BNS001) obtained by performing SEC-HPLC analysis.
- Figure 3 confirms the concentration of the fusion protein (BNS001) obtained using a UV spectrophotometer.
- hPD-1 protein human programmed cell death protein-1
- hPD-L1 human programmed cell death protein-1
- FIG. 19 shows the obtained fusion protein (BNS001) and IL-21 respectively treated with peripheral blood mononuclear cells (PBMC), and the amount of IFN- ⁇ secreted from PBMC containing immune cells during culture was measured through ELISA analysis. This is the result.
- Figure 22a confirms the effect of the obtained fusion protein (BNS001) and IL-21 protein on NK cell proliferation through FACS analysis.
- Figure 22b is a graph of the results of confirming the effect of the obtained fusion protein (BNS001) and IL-21 protein on the proliferation of NK cells through FACS analysis.
- CMV is a promoter derived from Cytomegalovirus
- RSV is a promoter derived from respiratory syncytial virus.
- 26 shows the results of measuring the luminescence signal (left) and fluorescence signal (right) of the human melanoma cell line (A375-Luc-GFP) expressing firefly luciferase and GFP established in the present invention.
- FIG. 27 shows PD-L1 and PD-L2 genes (left) specifically expressed in human melanoma cell line (A375-Luc-GFP) and PBMC containing immune cells according to an embodiment of the present invention.
- FIG. 29 shows the co-cultured human melanoma cell line (A375-Luc-GFP) and peripheral blood mononuclear cells (PBMC) treated with the obtained fusion protein (BNS001), and the cancer cell killing effect by treatment time was measured through luciferase activity measurement. it was analyzed
- Figure 30 is a human melanoma cell line (A375-Luc-GFP) and peripheral blood mononuclear cells (PBMC) co-cultured with the obtained fusion protein (BNS001) treated for 48 hours, and the cancer cell killing effect was measured by measuring luciferase activity confirmed through
- FIG. 31 shows the co-cultured human melanoma cell line (A375-Luc-GFP) and peripheral blood mononuclear cells (PBMC) treated with the obtained fusion protein (BNS001) at different concentrations, and the cancer cell killing effect at each treatment concentration was measured by luciferase activity analyzed through measurements.
- Figure 35 confirms the blood half-life of the fusion protein (BNS001) in the human FcRn TG mouse animal model.
- Figure 39 confirms the degree of immune cell activity in cancer tissues by the obtained fusion protein (BNS001), and in detail, mice with mouse-derived colorectal cancer cells were treated with the fusion protein (BNS001) and excised on day 35 in cancer tissues.
- the results of FACS analysis of the activity levels of phagocytes, dendritic cells (DC), CD4+ cells, CD8+ cells and NK cells are shown in graphs.
- FIG. 40 schematically shows administration and experimental schedules for confirming the anticancer effect of the fusion protein (BNS001) in humanized mice implanted with human-derived lung cancer cells (H460).
- mBNS001 mouse-derived colorectal cancer cell (CT-26) allograft mice
- BNS001 mPD1-Fc-IL-21
- PD1- Statistical significance between Fc, Fc-IL21, PD1-Fc + Fc-IL21 is shown.
- * is p ⁇ 0.05 and *** is p ⁇ 0.001.
- FIG. 51 schematically shows administration and experimental schedules for evaluating the tumor growth inhibitory effect of a fusion protein (mBNS001) in mouse-derived breast cancer cell (EMT-6) allograft mice.
- FIG. 52 shows the tumor growth inhibition efficacy evaluation results of the fusion protein (mBNS001) in mouse-derived breast cancer cell (EMT-6) allograft mice in plot form for each group (G1 to G9) and each individual (individual number indicated). will be.
- mBNS001 mPD1-Fc-mIL-21
- commercially available antibodies anti-PD1 Ab keytruda, MSD
- anti-PDL1 Ab Tecentriq, Roche
- fusion protein mBNS001; mPD1-Fc-mIL-21
- control PD1-Fc, Fc-IL21, PD1-Fc + Fc-IL21
- FIG. 56 shows the results obtained from human PBMC obtained from donor 1, a healthy donor, stimulated by treatment with PHA, and the level of IFN- ⁇ secretion induced by treatment with BNS001 was measured by ELISA analysis.
- 57 is a result of stimulating human PBMC obtained from donor 1, a healthy donor, treated with PHA, and measuring the level of IFN- ⁇ secretion induced by treatment at each concentration of BNS001 through ELISA analysis.
- FIG. 58 shows the results of stimulating human PBMC obtained from donor 2, a healthy donor, treated with PHA, and measuring the secretion of IFN- ⁇ induced by treatment at each concentration of BNS001 through ELISA analysis.
- 59 is a result of stimulating human PBMCs obtained from donor 3, a healthy donor, treated with PHA, and measuring the level of IFN- ⁇ secretion induced by treatment at each concentration of BNS001 through ELISA analysis.
- PBMCs obtained from donor 1 a healthy donor, stimulated by treatment with PHA, and FACS analysis of the expression levels of CD69, CD38, and 4-1BB, which are immune activation markers, showed the activity of NK cells induced by BNS001 treatment. indicated the degree.
- 61 shows human PBMCs obtained from donor 1, a healthy donor, stimulated by treatment with PHA, and FACS analysis of the expression levels of CD69 and 2B4, which are immune activation markers, shows the activity level of CD8+ T cells induced by BNS001 treatment. will be.
- CD4+ T cells induced by treatment with BNS001 through FACS analysis of the expression level of CD69, an immune activation marker, after stimulation with PHA in human PBMCs obtained from donor 1, a healthy donor.
- 63 shows the degree of B cell activity induced by BNS001 treatment through FACS analysis of the expression level of CD69, an immune activation marker, after stimulating human PBMCs obtained from donor 1, a healthy donor, treated with PHA.
- PBMC 64 shows human PBMC obtained from donor 1, a healthy donor, stimulated by treatment with PHA, and NK cells and CD8+ T cells induced by treatment with BNS001 concentrations through FACS analysis of the expression levels of CD69 and CD38, which are immune activation markers. and the degree of activity of each CD4+ T cell.
- 65a and 65b show that human PBMCs obtained from donor 2, a healthy donor, were stimulated by treatment with PHA, and FACS analysis of the expression levels of CD69, 2B4, and OX40, which are immune activation markers, showed that NK induced by treatment with each concentration of BNS001.
- Cells, CD8+ T cells, CD4+ T cells, and B cells each show the degree of activity.
- 66 shows that NK cells, CD8+ T cells, and CD4+ induced by BNS001 concentrations were stimulated by treating human PBMCs obtained from donor 3, a healthy donor, with PHA, and FACS analysis of the expression level of CD69, an immune activation marker, was performed. It shows the degree of activity of each of T cells and B cells.
- FIG. 69 schematically shows administration and experimental schedules for confirming the anticancer effect of the fusion protein (BNS001) in humanized mice implanted with human-derived colorectal cancer cells (HCT116).
- 71 is a result of confirming the degree of body weight change according to the administration of each concentration of fusion protein (BNS001) in humanized mice implanted with human-derived colorectal cancer cells (HCT116).
- BNS001 fusion protein
- HCT116 human-derived colorectal cancer cells
- BNS001 PD-1 D-Fc-IL-21
- HCT116 human-derived colorectal cancer cells
- BNS001 PD-1 D-Fc-IL-21
- HCT116 human-derived colorectal cancer cells
- BNS001 a fusion protein
- HCT116 human-derived colorectal cancer cells
- FIG. 76 is a result of comparing the degree of body weight change by administration of fusion protein (BNS001) in humanized mice implanted with human-derived colorectal cancer cells (HCT116) with the administration of atezolizumab, pembrolizumab, and avelumab as positive controls.
- BNS001 fusion protein
- HCT116 human-derived colorectal cancer cells
- 77 schematically shows administration and experimental schedules for confirming the anticancer effect between a fusion protein (BNS001) and a control drug in humanized mice implanted with human-derived lung cancer cells (A549).
- 78 is a result of comparing the tumor suppression effect by administration of a fusion protein (BNS001) to the positive control group administration of atezolizumab, pembrolizumab, and avelumab in humanized mice harboring human-derived lung cancer cells (A549).
- BNS001 fusion protein
- 79 is a result of comparing the degree of body weight change by administration of fusion protein (BNS001) in humanized mice implanted with human-derived lung cancer cells (A549) with the administration of atezolizumab, pembrolizumab, and avelumab as positive controls.
- BNS001 fusion protein
- MDA-MB-231 human-derived breast cancer cells
- BNS001 fusion protein
- 82 is a result of comparing the degree of body weight change by administration of a fusion protein (BNS001) in humanized mice implanted with human-derived breast cancer cells (MDA-MB-231) with the administration of atezolizumab, pembrolizumab, and avelumab as positive controls.
- BNS001 a fusion protein
- MDA-MB-231 human-derived breast cancer cells
- 83 schematically shows administration and experimental schedules for confirming the anticancer effect between a fusion protein (BNS001) and a control drug in humanized mice implanted with human-derived lung cancer cells (NCI-H1975).
- BNS001 a fusion protein
- bevacizumab and ramucirumab which are positive controls
- BNS001 fusion protein
- NCI-H1975 human-derived lung cancer cells
- 86 is a result of comparing the tumor suppression effect by administration of a fusion protein (BNS001) with administration of cetuximab and amivantamab, which are positive controls, in humanized mice harboring human-derived lung cancer cells (NCI-H1975).
- 87 is a result of comparison of the degree of body weight change by administration of a fusion protein (BNS001) in humanized mice harboring human-derived lung cancer cells (NCI-H1975) with administration of cetuximab and amivantamab as positive controls.
- BNS001 a fusion protein
- NCI-H1975 human-derived lung cancer cells
- 88 is a schematic diagram of an embodiment of a fusion protein (BNS001) dimer.
- Fusion protein comprising PD-1 protein and IL-21 protein
- One aspect of the present invention provides a fusion protein comprising PD-1 protein and IL-21 protein.
- PD-1 programmed cell death protein 1 or programmed death receptor-1
- CD279. immune checkpoint
- PD-1 is widely expressed on the surface of activated T cells, natural killer T cells, B cells and macrophages.
- PD-1 binds to its ligand, programmed cell death ligand-1 (PD-L1) or programmed cell death ligand-2 (PD-L2)
- intracellular signaling inhibits CD3- and CD28-mediated T cell activation.
- induce Downregulation of the T cell activation results in a decrease in T cell proliferation, IFN- ⁇ secretion, IL-2 secretion, and the like.
- PD-1 and its ligand known to be expressed in various types of cancer cells e.g., melanoma, liver cancer, lung cancer, ovarian cancer, cervical cancer, bladder cancer, kidney cancer, pancreatic cancer, breast cancer, lymphoma, glioma, etc.
- cancer cells e.g., melanoma, liver cancer, lung cancer, ovarian cancer, cervical cancer, bladder cancer, kidney cancer, pancreatic cancer, breast cancer, lymphoma, glioma, etc.
- Interaction with PD-L1 or PD-L2 inactivates T cells and acts as a mechanism for cancer cells to evade the immune system's attack. Therefore, blocking the interaction between PD-1 and PD-L1 or PD-L2 activates T cells in the tumor microenvironment to eliminate tumor cells.
- PD-1 programmed cell death receptor-1
- programmed death protein-1 refers to a mammal, e.g., a primate (e.g., a human), unless otherwise indicated. ) and any wild-type PD-1 obtained from any vertebrate source, including rodents (eg, mice and rats).
- the PD-1 may be obtained from animal cells, but also includes those obtained from recombinant cells capable of producing PD-1.
- the PD-1 may be wild-type PD-1 or a fragment thereof.
- PD-1 is a type I membrane protein consisting of 288 amino acids, and its structure consists of an extracellular IgV-like domain, a transmembrane domain, and a cytoplasmic domain.
- the amino acid sequence of PD-1 is GenBank accession NO. NP_005009.2 or UniProtkB No. Q15116 (for the amino acid sequence of mouse PD-1, see Genbank accession No. NP_032824.1).
- PDCD1 (programmed cell death 1) gene as a sequence encoding the PD-1 is GenBank accession NO. It may be a nucleotide sequence corresponding to a coding sequence (CDS) among the sequences described in NM_005018.3 (see GenBank accession No. NM_008798.3 for mouse sequence).
- PD-1 protein refers to full-length PD-1 or PD-1 fragments. In the present specification, PD-1 or fragments thereof are collectively referred to as "PD-1 protein". PD-1, PD-1 proteins and PD-1 fragments specifically bind to, for example, PD-1's ligand, PD-L1 or PD-L2. This specific binding can be confirmed by methods known to those skilled in the art.
- the ligands of PD-1, PD-L1 and PD-L2 are proteins expressed on the surface of cancer cells.
- PD-L1 is also known as B7-H1 or CD274, and PD-L2 is also known as B7-DC or CD273.
- PD-L1 or PD-L2 binds to PD-1 present in T cells, it suppresses the function of T cells by changing the immune checkpoint function. That is, T cell function is suppressed by the interaction of PD-1 and PD-L1 or PD-L2, and ultimately cancer cells evade the attack of immune cells.
- the term "PD-1 fragment” means a truncated form of PD-1.
- the PD-1 fragment may be an extracellular domain of PD-1.
- One specific example of the PD-1 fragment may be one in which the 1st to 24th amino acids from the N-terminus, which is the signal sequence of PD-1, are excluded.
- one specific example of the PD-1 fragment may be a protein composed of the 25th to 288th amino acids of SEQ ID NO: 18.
- one specific example of the PD-1 fragment may be a protein composed of 25th to 170th amino acids of SEQ ID NO: 18.
- one specific example of the PD-1 fragment may be a protein composed of the 25th to 150th amino acids of SEQ ID NO: 18.
- one specific example of the PD-1 fragment may be a protein composed of 25th to 144th amino acids of SEQ ID NO: 18.
- the PD-1 fragment may have the amino acid sequence of SEQ ID NO: 2 or 34.
- the PD-1 fragment may be a protein composed of the 25th to 169th amino acids of SEQ ID NO: 29.
- the PD-1 fragment may have the amino acid sequence of SEQ ID NO: 21.
- IL-21 is a cytokine produced primarily by activated CD4+ and NK T cells.
- IL-21 belongs to the common ⁇ -chain cytokine family and is involved in lymphocyte activation, proliferation, differentiation and survival.
- IL-21 activates the Jak/STAT signaling pathway through interaction with its specific receptor, interleukin-21 receptor (IL-21R), and a heterodimeric receptor composed of a common ⁇ -chain receptor. Signaling induced by the interaction between IL-21 and its receptor, IL-21R, induces an immune-inflammatory response.
- IL-21R interleukin-21 receptor
- IL-21 induces the maturation of NK cell precursors from bone marrow, and in particular increases effector functions such as cytokine production and apoptosis of NK cells.
- IL-21 not only induces cytotoxic activity by increasing the degranulation and secretion of inflammatory cytokines, but also promotes the expansion and effector function of antigen-specific CD8+ T cells, resulting in tumor regression.
- IL-21 or "interleukin-21”, unless stated otherwise, includes mammals such as primates (eg humans) and rodents (eg mice and rats). Any wild-type IL-21 obtained from any vertebrate source.
- the IL-21 may be obtained from animal cells, but also includes those obtained from recombinant cells capable of producing IL-21.
- the IL-21 may be wild-type IL-21 or a variant thereof.
- IL-21 consists of 162 amino acids, specifically, it consists of a secretion signal sequence of amino acid residues 1 (Met) to 29 (Ser) and a mature polypeptide of amino acid residues 30 (Gln) to 162 (Ser).
- the amino acid sequence of IL-21 is GenBank accession NO. NP_068575.1 or UniProtkB No. Q9HBE4 (see Genbank accession No. NP_068554.1 for the amino acid sequence of mouse IL-21).
- the IL-21 gene is GenBank accession NO. It may be a nucleotide sequence corresponding to a coding sequence (CDS) among the sequences described in NM_021803.4 (see GenBank accession No. NM_021782.3 for mouse sequence).
- IL-21 protein refers to full-length IL-21, IL-21 fragments, or IL-21 variants.
- IL-21, IL-21 fragments, or variants thereof are collectively referred to as "IL-21 protein” or "IL-21 polypeptide".
- IL-21, IL-21 proteins, IL-21 polypeptides, and IL-21 variants specifically bind to, for example, the IL-21 receptor (IL-21R). This specific binding can be confirmed by methods known to those skilled in the art.
- IL-21R the receptor for IL-21
- IL-21R is a transmembrane IL-21-binding protein belonging to the Class I cytokine receptor family.
- the IL-21 may have an amino acid sequence of SEQ ID NO: 19 or 30. Also, at this time, the IL-21 may be in a mature form. Specifically, the matured IL-21 may not contain a signal sequence and may have the amino acid sequence of SEQ ID NO: 6 or 22. In this case, the IL-21 may be used as a concept including a fragment in which a part of the N-terminus or C-terminus of wild-type IL-21 is truncated.
- the fragment of IL-21 is continuously 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, or 24 amino acids It may be in a missing form.
- the fragment of IL-21 is continuously 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, or 24 amino acids It may be in a missing form.
- the term "IL-21 variant” refers to a full-length IL-21 or a form in which a portion of the amino acids of the aforementioned IL-21 fragment is substituted. That is, the IL-21 variant may have an amino acid sequence different from wild-type IL-21 or a fragment thereof. However, the IL-21 variant may have an activity equivalent to or similar to that of wild-type IL-21.
- IL-21 activity may mean, for example, specific binding to the IL-21 receptor, and this specific binding can be measured by a method known to those skilled in the art.
- the IL-21 mutant may be one in which some amino acids of wild-type IL-21 are deleted and/or substituted.
- a specific example of an IL-21 mutant by amino acid deletion and/or substitution is the secretion signal sequence of 1 (Met) to 29 (Ser) in the amino acid sequence of SEQ ID NO: 19. deletion, and amino acids in the 66 (Ile) to 98 (Ser) region of the mature 133 amino acid peptide may be deleted and/or substituted.
- the IL-2 variant may be characterized in that the activity of IL-21 is maintained or improved compared to wild-type IL-21.
- the PD-1 protein and the IL-21 protein may be linked by a linker or a carrier.
- the PD-1 or a fragment thereof and the IL-21 or a variant thereof may be linked by a linker or a carrier.
- a linker and a carrier are also used interchangeably.
- the linker connects the two proteins.
- One specific example of the linker may include 1 to 50 amino acids, albumin or a fragment thereof, or an Fc domain of an immunoglobulin.
- the Fc domain of the immunoglobulin includes heavy chain constant region 2 (CH2) and heavy chain constant region 3 (CH3) of immunoglobulin, and includes variable regions and light chain constant region 1 (CH1) of heavy and light chains of immunoglobulin.
- protein that does not The immunoglobulin may be IgG, IgA, IgE, IgD or IgM, preferably IgG1.
- the Fc domain of wild-type immunoglobulin G1 may have the amino acid sequence of SEQ ID NO: 14.
- the Fc domain of the immunoglobulin may be a wild-type Fc domain as well as an Fc domain variant.
- Fc domain variant refers to a glycosylation pattern that is different from that of the wild-type Fc domain, increased sugar chains compared to the wild-type Fc domain, reduced sugar chains compared to the wild-type Fc domain, or sugar chains removed. (deglycosylated) form. Also included are aglycosylated Fc domains.
- the Fc domain or variant may have sialic acid, fucosylation, and glycosylation of numbers adjusted through culture conditions or genetic manipulation of the host.
- the sugar chain of the Fc domain of immunoglobulin can be modified by conventional methods such as chemical methods, enzymatic methods, and genetic engineering methods using microorganisms.
- the Fc domain variant may be a mixed form of an immunoglobulin Fc region of IgG, IgA, IgE, IgD or IgM.
- the Fc domain variant may be a form in which some amino acids of the Fc domain are substituted with other amino acids.
- One specific example of the Fc domain variant may be a substitution of Q81R, M198L, L79G, T136W, Q81R/M198L, L79G/M198L or Q81R/T136W/M198L in the amino acid sequence of SEQ ID NO: 14.
- the Fc domain may be additionally modified to prevent cleavage by the IdeS protease.
- E3P, L4V, or L5A may be substituted or G6 amino acids may be deleted.
- Fc domain variant may be one having an amino acid sequence of SEQ ID NO: 4, 10, 50, 87, 95, 99, 104, 108, 112, or 116.
- Fc domain variant by amino acid substitution is an Fc domain variant comprising an amino acid substitution that regulates binding and dissociation to FcRn (neonatal Fc receptor).
- Fc variants that exhibit increased binding affinity to FcRn at low pH and show no substantially altered binding at high pH, or functional variants thereof.
- the Fc domain variant has a binding affinity to FcRn of 10% or more, 20% or more, 30% or more, 40% or more, 50% or more at pH 5.6 to 6.2 (preferably pH 5.8 to 6.0) compared to the wild-type Fc domain.
- the degree of dissociation of the Fc domain variant from the neonatal Fc receptor (FcRn) at pH 7.0 to 7.8 may be the same as or substantially unchanged compared to the wild-type Fc domain.
- the Fc domain variant may be characterized in that half-life is increased compared to the wild type.
- the half-life of the Fc domain variant is 10% or more, 20% or more, 30% or more, 40% or more, 50% or more, 60% or more, 70% or more, 80% or more, 90% or more compared to the wild-type Fc domain. Increased by at least 100% or more, at least 2-fold, at least 3-fold, at least 4-fold, at least 5-fold, at least 6-fold, at least 7-fold, at least 8-fold, at least 9-fold or at least 10-fold more than the wild-type Fc domain there is.
- neonatal Fc receptor (FcRn) or “neonatal Fc receptor” is an MHC class I related protein expressed in vascular endothelial cells and binds to IgG and albumin.
- the characteristic point is that the binding between IgG and FcRn is strong when the pH is slightly acidic, and there is no binding force at neutral pH. Therefore, IgG entering cells by pinocytosis or endocytosis binds strongly to FcRn, a type of Fc gamma receptor (Fc ⁇ R), in endosomes under pH 6.0 conditions, and forms degradative lysosomes.
- FcRn a type of Fc gamma receptor
- Fc gamma receptor is an Fc receptor for IgG, and there are three types of Fc ⁇ RI (CD64), Fc ⁇ RII (CD32), and Fc ⁇ RIII (CD16).
- An Fc receptor is a molecule that binds to immunoglobulin and allows the bound antibody to perform various biological functions independently of an antigen binding site, and is distributed on the surface of various cells and tissues. Fc receptors are involved in cytotoxicity, antibody-dependent cell-mediated cytotoxicity (ADCC), secretion of mediators such as cytokines, phagocytosis, initiation of oxidation, and regulation of antibody production.
- ADCC antibody-dependent cell-mediated cytotoxicity
- the fusion protein may have a structure in which PD-1 and IL-21 proteins are connected to the N-terminus and C-terminus of the Fc domain as a linker (or carrier), or IL-21 and PD-1 are connected, respectively. Connection between the N-terminus or C-terminus of the Fc domain and PD-1 or IL-21 may be optionally performed by a linker peptide.
- the fusion protein may be composed of the following structural formula I or II:
- N' is the N-terminus of the fusion protein
- the C' is the C-terminus of the fusion protein
- A is PD-1 protein or a fragment thereof
- B is an IL-21 protein or a variant thereof
- L 1 and L 2 are peptide linkers
- n and m are each independently 0 or 1.
- the fusion protein may be composed of structural formula I.
- the PD-1 protein and the IL-21 protein are each as described above.
- the PD-1 protein may be a truncated fragment of up to about 24 amino acid residues consecutively from the N-terminus or C-terminus of wild-type PD-1.
- the IL-21 protein may be a truncated fragment of up to about 24 amino acid residues consecutively from the N-terminus or C-terminus of wild-type IL-21.
- the IL-21 protein may be an IL-21 mutant in which some amino acids of an IL-21 fragment are deleted and/or substituted.
- the fusion protein is SEQ ID NO: 8, 12, 16, 24, 27, 32, 36, 41, 44, 52, 55, 76, 79, 82, 89, 92, 97, 101, 106, 110, 114 Or it may have an amino acid sequence of 118.
- the fusion protein is SEQ ID NO: 8, 12, 16, 24, 27, 32, 36, 41, 44, 52, 55, 76, 79, 82, 89, 92, 97, 101, 106, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98 for amino acid sequences of 110, 114 or 118 It includes polypeptides having a sequence identity of %, 99% or 100%. At this time, the identity may be determined through, for example, percent homology, homology comparison software such as NCBI (National Center of Biotechnology Information) BlastN software.
- NCBI National Center of Biotechnology Information
- a peptide linker L 1 may be included between the PD-1 protein and the Fc domain.
- the peptide linker L 1 may consist of 5 to 80 consecutive amino acids, 20 to 60 consecutive amino acids, or 25 to 50 consecutive amino acids, or 30 to 40 amino acids. In one embodiment, the peptide linker L 1 may consist of 30 amino acids.
- the peptide linker L 1 may include at least one cysteine. Specifically, it may contain 1, 2 or 3 cysteines.
- the peptide linker L 1 may be derived from the hinge of an immunoglobulin. In one embodiment, the peptide linker L 1 may be a peptide linker consisting of the amino acid sequence of SEQ ID NO: 3 or 38.
- the peptide linker L 2 may consist of 1 to 50 consecutive amino acids, or 3 to 30 consecutive amino acids, or 5 to 15 amino acids.
- the peptide linker L 2 may be (G 4 S)n (where n is an integer from 1 to 10). In this case, in (G4S)n, n may be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10.
- the peptide linker L 2 may be a peptide linker consisting of the amino acid sequence of SEQ ID NO: 5, 39 or 57.
- Another aspect of the present invention provides a fusion protein dimer in which two fusion proteins including the PD-1 protein and the IL-21 protein are linked.
- the fusion protein comprising PD-1 or a fragment thereof and IL-21 or a variant thereof is as described above.
- the binding between the fusion proteins constituting the dimer may be made by a disulfide bond by a cysteine present in the linker, but is not limited thereto.
- the fusion proteins constituting the dimer may be the same or may be different fusion proteins.
- the dimer may be a homodimer.
- One embodiment of the fusion protein constituting the dimer is SEQ ID NO: 8, 12, 16, 24, 27, 32, 36, 41, 44, 52, 55, 76, 79, 82, 89, 92, 97, 101 , 106, 110, 114 or 118 may be a protein having an amino acid sequence.
- polynucleotide encoding a fusion protein comprising PD-1 protein and IL-21 protein.
- the polynucleotide is SEQ ID NO: 9, 13, 17, 25, 28, 33, 37, 42, 45, 53, 56, 77, 80, 83, 90, 93, 98, 102, 107, 111, 115 Or it may be one containing the nucleotide sequence of 119.
- the fusion protein comprising the PD-1 protein and the IL-21 protein is as described above.
- the polynucleotide may be mutated by substitution, deletion, insertion, or a combination of one or more bases.
- a synthesis method well known in the art for example, a method described in the literature (Engels and Uhlmann, Angew Chem IntEd Engl., 37:73-127, 1988) can be used , triester, phosphite, phosphoramidite and H-phosphate methods, PCR and other autoprimer methods, oligonucleotide synthesis methods on solid supports, and the like.
- the polynucleotide is SEQ ID NO: 9, 13, 17, 25, 28, 33, 37, 42, 45, 53, 56, 77, 80, 83, 90, 93, 98, 102, 107, 111, 115 or 119 and at least about 70%, at least about 75%, at least about 80%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90% , at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, at least about 99%, or at least about 100 It may include nucleic acid sequences having % identity.
- the polynucleotide may additionally include a nucleic acid encoding a signal sequence or a leader sequence.
- signal sequence refers to a signal peptide that directs the secretion of a target protein.
- the signal peptide is cleaved after translation in the host cell.
- the signal sequence is an amino acid sequence that initiates protein movement through an endoplasmic reticulum (ER) membrane.
- the signal sequence may have an amino acid sequence of SEQ ID NO: 1, 20 or 94.
- the signal sequence is well known in the art and usually includes 16 to 30 amino acid residues, but may include more or less amino acid residues.
- a typical signal peptide consists of three regions: a basic N-terminal region, a central hydrophobic region, and a more polar C-terminal region.
- the central hydrophobic region contains 4 to 12 hydrophobic residues that anchor the signal sequence throughout the membrane lipid bilayer during migration of the immature polypeptide.
- the signal sequence is cleaved within the lumen of the ER by cellular enzymes commonly known as signal peptidases.
- the signal sequence may be tPa (tissue plasminogen activation), HSV gDs (signal sequence of herpes simplex virus glycoprotein D), or growth hormone secretion signal sequence.
- secretion signal sequences used in higher eukaryotic cells including mammals and the like can be used.
- a signal sequence included in wild-type PD-1 and/or IL-21 may be used, or a codon frequently expressed in the host cell may be substituted for use.
- Another aspect of the present invention provides a vector containing the polynucleotide.
- the vector can be introduced into a host cell and then recombinated and inserted into the genome of the host cell.
- the vector is understood to be a nucleic acid vehicle comprising a polynucleotide sequence capable of autonomous replication as an episome.
- Such vectors include linear nucleic acids, plasmids, phagemids, cosmids, RNA vectors, viral vectors and analogues thereof.
- examples of viral vectors include, but are not limited to, retroviruses, adenoviruses, and adeno-associated viruses.
- the vector may be plasmid DNA, phage DNA, etc., commercially developed plasmids (pUC18, pBAD, pIDTSAMRT-AMP, etc.), Escherichia coli-derived plasmids (pYG601BR322, pBR325, pUC118, pUC119, etc.), Bacillus subtilis plasmids derived from spp.
- pUB110, pTP5, etc. yeast-derived plasmids (YEp13, YEp24, YCp50, etc.), phage DNA (Charon4A, Charon21A, EMBL3, EMBL4, ⁇ gt10, ⁇ gt11, ⁇ ZAP, etc.), animal viral vectors (retrovirus ), adenovirus, vaccinia virus, etc.), insect virus vectors (baculovirus, etc.). Since the expression level and modification of the protein of the vector appear differently depending on the host cell, it is preferable to select and use the host cell most suitable for the purpose.
- the term "gene expression” or “expression” of a protein of interest is understood to mean transcription of DNA sequences, translation of mRNA transcripts and secretion of fusion protein products or fragments thereof.
- a useful expression vector can be RcCMV (Invitrogen, Carlsbad) or variants thereof.
- the expression vector includes a human cytomegalovirus (CMV) promoter for promoting continuous transcription of a target gene in mammalian cells, and a bovine growth hormone polyadenylation signal sequence for increasing the steady-state level of RNA after transcription. can do.
- CMV human cytomegalovirus
- Another aspect of the present invention provides a transformed host cell into which the vector is introduced.
- Host cells of the transformed cells may include, but are not limited to, prokaryotic cells, eukaryotic cells, mammalian cells, plants, insects, fungi, or cells of cellular origin.
- prokaryotic cell Escherichia coli may be used.
- yeast may be used as an example of a eukaryotic cell.
- CHO cells, F2N cells, CSO cells, BHK cells, Bowes melanoma cells, HeLa cells, 911 cells, AT1080 cells, A549 cells, HEK 293 cells, or HEK293T cells may be used as the mammalian cells.
- any cell that can be used as a mammalian host cell known to those skilled in the art can be used.
- the CaCl 2 precipitation method when the expression vector is introduced into the host cell, the CaCl 2 precipitation method, the Hanahan method with increased efficiency by using a reducing material called DMSO (dimethyl sulfoxide) for the CaCl 2 precipitation method, the electroporation method, and the calcium phosphate precipitation method , protoplast fusion method, agitation method using silicon carbide fibers, agrobacteria-mediated transformation method, transformation method using PEG, dextran sulfate, lipofectamine, and drying/inhibition-mediated transformation methods, etc. may be used.
- DMSO dimethyl sulfoxide
- the sugar chain pattern of the fusion protein e.g., sialic acid, fucosylation, glycosylation.
- Another aspect of the present invention provides a method for producing a fusion protein comprising PD-1 protein and IL-21 protein, comprising culturing the transformed cell.
- the production method includes i) culturing the transformed cells to obtain a culture product; and ii) recovering the fusion protein from the culture.
- the method of culturing the transformed cells may be performed using a method widely known in the art. Specifically, the culture may be cultured continuously in a batch process or an injection batch or a repeated injection batch process (fed batch or repeated fed batch process).
- Another aspect of the present invention is for the treatment or prevention of cancer disease comprising, as an active ingredient, a fusion protein comprising PD-1 protein and IL-21 protein or a fusion protein dimer in which the two fusion proteins are combined, and/or It provides a pharmaceutical composition capable of increasing the therapeutic effect (efficacy).
- the fusion protein including the PD-1 protein and the IL-21 protein or the fusion protein dimer in which the two fusion proteins are combined are as described above.
- the cancer is colorectal cancer, melanoma, stomach cancer, liver cancer, lung cancer, breast cancer, prostate cancer, ovarian cancer, pancreatic cancer, cervical cancer, bladder cancer, kidney cancer, gallbladder cancer, thyroid cancer, laryngeal cancer, acute myelogenous leukemia, brain tumor, neuroblastoma, retinoblastoma , head and neck cancer, salivary gland cancer and lymphoma.
- a preferred dosage of the pharmaceutical composition varies depending on the condition and body weight of the patient, the severity of the disease, the type of drug, the route and duration of administration, but can be appropriately selected by those skilled in the art.
- the active ingredient may be included in any amount (effective amount) according to the purpose of use, formulation, combination, etc., as long as it can exhibit anticancer activity.
- a typical effective amount is the entire composition. On a weight basis it will be determined within the range of 0.001% to 20.0% by weight.
- "effective amount” refers to the amount of an active ingredient capable of inducing an anticancer effect. Such an effective amount can be determined empirically within the ordinary skill of the skilled artisan.
- the term “treatment” may be used to include both therapeutic treatment and prophylactic treatment. At this time, prevention may be used in the sense of alleviating or reducing the pathological condition or disease of the subject.
- the term “treatment” includes any form of administration or application to treat a disease in a mammal, including humans. The term also includes inhibiting or slowing the disease or progression of the disease; restoring or repairing a damaged or missing function, thereby partially or completely alleviating the disease; or stimulate inefficient processes; It includes the meaning of alleviating serious illness.
- the term “efficacy” refers to survival or disease-free survival over a period of time, such as 1 year, 5 years, or 10 years, by one or more parameters, such as disease-free survival. can be determined Additionally, the parameter may include inhibition of the size of at least one tumor in the subject.
- Pharmacokinetic parameters such as bioavailability and underlying parameters such as clearance rate may also affect efficacy.
- "enhanced efficacy” eg, improvement in efficacy
- terapéuticaally effective amount or “pharmaceutically effective amount” is an amount of a compound or composition effective for preventing or treating a target disease, sufficient to treat the disease with a reasonable benefit / risk ratio applicable to medical treatment It means an amount that does not cause side effects.
- the level of the effective amount is the patient's state of health, type of disease, severity, activity of the drug, sensitivity to the drug, method of administration, time of administration, route of administration and excretion rate, duration of treatment, factors including drugs used in combination or concurrently, and It may be determined according to other factors well known in the medical field.
- a therapeutically effective amount refers to an amount of a drug effective to treat cancer.
- the pharmaceutical composition may further include a pharmaceutically acceptable carrier.
- the pharmaceutically acceptable carrier may be any carrier as long as it is a non-toxic material suitable for delivery to a patient. Distilled water, alcohol, fats, waxes and inert solids may be included as carriers. A pharmacologically acceptable adjuvant (buffer, dispersant) may also be included in the pharmaceutical composition.
- the pharmaceutical composition may be prepared as a parenteral formulation according to an administration route by a conventional method known in the art, including a pharmaceutically acceptable carrier in addition to the active ingredient.
- pharmaceutically acceptable means that it does not inhibit the activity of the active ingredient and does not have toxicity more than is adaptable to the subject of application (prescription).
- the pharmaceutical composition When the pharmaceutical composition is prepared as a parenteral formulation, it may be formulated in the form of injection, transdermal administration, nasal inhalation, and suppository along with a suitable carrier according to a method known in the art.
- a suitable carrier preferably Ringer's solution, PBS (phosphate buffered saline) containing triethanolamine or sterilization for injection water, isotonic solutions such as 5% dextrose, and the like can be used.
- suitable carriers preferably Ringer's solution, PBS (phosphate buffered saline) containing triethanolamine or sterilization for injection water, isotonic solutions such as 5% dextrose, and the like can be used.
- Formulation of pharmaceutical compositions is known in the art, and may be specifically referred to in Remington's Pharmaceutical Sciences (19th ed., 1995). These documents are considered as part of this specification.
- the preferred dosage of the pharmaceutical composition is in the range of 0.01 ⁇ g/kg to 10 g/kg, or 0.01 mg/kg to 1 g/kg per day depending on the patient's condition, weight, sex, age, severity of the patient, and route of administration. can be Administration can be done once a day or divided into several times. These dosages should not be construed as limiting the scope of the present invention in any respect.
- compositions of the present application are mammals and humans, particularly preferably humans.
- the pharmaceutical composition of the present application may further include any compound or natural extract known to have a therapeutic effect on anticancer activity and whose safety has already been verified for enhancement or enhancement of anticancer activity.
- Another aspect of the present invention provides the use of a fusion protein comprising PD-1 protein and IL-21 protein for treating cancer diseases.
- Another aspect of the present invention provides the use of a fusion protein comprising PD-1 protein and IL-21 protein for enhancing the therapeutic effect of cancer disease.
- Another aspect of the present invention provides a use of a fusion protein comprising a PD-1 protein and an IL-21 protein for preparing a drug for treating cancer diseases.
- Another aspect of the present invention is a method for treating cancer disease comprising administering to a subject a fusion protein comprising PD-1 protein and IL-21 protein or a fusion protein dimer in which the two fusion proteins are combined; and/or a method for enhancing the therapeutic effect.
- the subject may be an individual suffering from a cancer disease. Also, the subject may be a mammal, preferably a human.
- the fusion protein including the PD-1 protein and the IL-21 protein or the fusion protein dimer in which the two fusion proteins are combined are as described above.
- the administration route, dosage and frequency of administration of the fusion protein or fusion protein dimer can be administered to the subject in various ways and amounts depending on the condition of the patient and the presence or absence of side effects, and the optimal administration method, dosage and frequency of administration are A person skilled in the art can select an appropriate range.
- the fusion protein or fusion protein dimer may be administered in combination with other drugs or physiologically active substances known to have therapeutic effects on the disease to be treated, or formulated in combination with other drugs.
- Another aspect of the present invention provides a cell culture medium containing a fusion protein including PD-1 protein and IL-21 protein or a fusion protein dimer in which the two fusion proteins are linked.
- the cells may be T cells or natural killer cells.
- the cell culture medium may be a medium in which a fusion protein including PD-1 protein and IL-21 protein or a fusion protein dimer in which the two fusion proteins are combined is added to a cell culture medium.
- the cell culture medium may include any one selected from the group consisting of amino acids, sugars, inorganic salts, and vitamins.
- the medium for cell culture may contain all amino acids, sugars, inorganic salts and vitamins.
- the term "cell culture medium” refers to a medium used to culture cells, specifically immune cells, more specifically CD4+ or CD8+ T cells; or a medium for culturing NK cells. Contains components required by cells for cell growth and survival in vitro, or contains components that help cell growth and survival. Specifically, the components may be vitamins, essential or non-essential amino acids, and trace elements.
- the medium may be a medium used for culturing cells, preferably eukaryotic cells, more preferably T cells or NK cells.
- Signal peptide SEQ ID NO: 1
- PD-1 fragment SEQ ID NO: 2
- Ig hinge to which a linker is attached to produce a fusion protein including human PD-1 fragment, long-acting Fc (29) domain and IL-21 (SEQ ID NO: 3), Fc (29) domain (SEQ ID NO: 4), linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 6) in order from the N-terminus to a fusion protein (SEQ ID NO: 7)
- a polynucleotide containing the coding nucleotide sequence SEQ ID NO: 9 was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 8) is referred to as "hPD-1 D-Fc(29)-hIL-21" or "BNS001(29)", and thus a fusion protein containing PD-1 and IL-21
- the dimer was collectively referred to as “BNS001”.
- the fusion protein in the recovered culture medium was first purified using Affinity Chromatography with Protein A Resin (KANEKA). After binding the fusion protein with DPBS buffer and washing the resin, only the bound fusion protein was eluted with 0.1 M glycine buffer (pH 3.3). The eluted fusion protein was subjected to buffer exchange by dialysis with DPBS buffer for one day, and secondary purification was performed by size exclusion chromatography using a HiLoad ® 16/600 Superdex ® 200 pg column (Cytiva). The separated and purified fusion protein was quantified using NanoDrop, and the purity was analyzed by performing SDS-PAGE and SEC-HPLC analysis (FIG. 1 and FIG. 2).
- Signal peptide SEQ ID NO: 1
- PD-1 fragment SEQ ID NO: 2
- Ig hinge to which a linker is attached to produce a fusion protein including human PD-1 fragment, long-acting Fc (41) domain and IL-21 (SEQ ID NO: 3), an Fc (41) domain (SEQ ID NO: 10), a linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 6) in order from the N-terminus to a fusion protein (SEQ ID NO: 11)
- a polynucleotide containing the coding nucleotide sequence SEQ ID NO: 13
- GenScript's Gene Synthesis service was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 12) is referred to as "hPD-1 D-Fc(41)-hIL-21" or "BNS001(41)", and thus a fusion protein containing PD-1 and IL-21
- the dimer was collectively referred to as “BNS001”.
- Signal peptide SEQ ID NO: 1
- PD-1 fragment SEQ ID NO: 2
- Ig hinge to which a linker is attached to produce a fusion protein including human PD-1 fragment, long-acting Fc (wt) domain and IL-21 (SEQ ID NO: 3), Fc (wt) domain (SEQ ID NO: 14), linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 6) in order from the N-terminus to a fusion protein (SEQ ID NO: 15)
- a polynucleotide containing the coding base sequence SEQ ID NO: 17
- GenScript's Gene Synthesis service was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 16) is referred to as "hPD-1 D-Fc(wt)-hIL-21" or "BNS001(wt)", and thus a fusion protein containing PD-1 and IL-21
- the dimer was collectively referred to as “BNS001”.
- Signal peptide SEQ ID NO: 20
- PD-1 fragment SEQ ID NO: 21
- linker-linked Ig hinge to produce a fusion protein including mouse PD-1 fragment, persistent Fc (29) domain and IL-21 (SEQ ID NO: 3), Fc (29) domain (SEQ ID NO: 4), linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 22) in the above order from the N-terminal fusion protein (SEQ ID NO: 23)
- a polynucleotide containing the coding base sequence SEQ ID NO: 25
- GenScript's Gene Synthesis service was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 24) is referred to as "mPD-1 D-Fc(29)-mIL-21" or "mBNS001(29)", and thus a fusion protein containing mPD-1 and mIL-21 The dimer was collectively referred to as “BNS001”. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Signal peptide SEQ ID NO: 20
- PD-1 fragment SEQ ID NO: 21
- linker-linked Ig hinge to produce a fusion protein including mouse PD-1 fragment, persistent Fc (wt) domain and IL-21 (SEQ ID NO: 3), an Fc (wt) domain (SEQ ID NO: 14), a linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 22) in order from the N-terminus to a fusion protein (SEQ ID NO: 26)
- a polynucleotide containing the coding base sequence SEQ ID NO: 28
- GenScript's Gene Synthesis service was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 27) is referred to as "mPD-1 D-Fc (wt) -mIL-21" or "mBNS001 (wt)", and thus a fusion protein containing PD-1 and IL-21
- the dimer was collectively referred to as “BNS001”. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Signal peptide SEQ ID NO: 1
- PD-1 fragment SEQ ID NO: 2
- linker-linked Ig Fusion protein SEQ ID NO: 31
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 32) was called "hPD-1 D-Fc(29)-mIL-21", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001". collectively. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- a fusion protein including human PD-1 fragment, long-acting Fc (29) domain and IL-21, signal peptide (SEQ ID NO: 1), PD-1 fragment (SEQ ID NO: 34), Ig hinge to which linker is attached (SEQ ID NO: 3), Fc (29) domain (SEQ ID NO: 4), linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 6) in order from the N-terminus to a fusion protein (SEQ ID NO: 35)
- a polynucleotide containing the coding base sequence (SEQ ID NO: 37) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 36) was called "hPD-1 ECD-Fc(29)-hIL-21", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001". collectively. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Signal peptide (SEQ ID NO: 20), IL-21 (SEQ ID NO: 6), Ig hinge coupled with a linker to produce a fusion protein including a human IL-21 fragment, a persistent Fc (29) domain, and a PD-1 fragment (SEQ ID NO: 38), Fc (29) domain (SEQ ID NO: 4), linker (SEQ ID NO: 39) and PD-1 fragment (SEQ ID NO: 2) in the above order from the N-terminus (SEQ ID NO: 40)
- a polynucleotide containing the nucleotide sequence encoding (SEQ ID NO: 42) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 41) was called "hIL-21-Fc(29)-hPD-1 D", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001". collectively. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Signal peptide (SEQ ID NO: 20), IL-21 (SEQ ID NO: 6), Ig hinge coupled with a linker to produce a fusion protein including a human IL-21 fragment, a persistent Fc (29) domain, and a PD-1 fragment (SEQ ID NO: 38), an Fc (29) domain (SEQ ID NO: 4), a linker (SEQ ID NO: 39) and a PD-1 fragment (SEQ ID NO: 34) in the above order from the N-terminus (SEQ ID NO: 43)
- a polynucleotide containing the nucleotide sequence encoding (SEQ ID NO: 45) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 44) was called "hIL-21-Fc(29)-hPD-1 ECD", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001". collectively. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- a fusion protein including human PD-1 fragment, long-acting Fc (29, K) domain and IL-21 a signal peptide (SEQ ID NO: 1), PD-1 fragment (SEQ ID NO: 2), and a linker are combined.
- a polynucleotide containing the nucleotide sequence (SEQ ID NO: 53) encoding No. 51) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 52) was referred to as "hPD-1 D-Fc (29, K)-hIL-21", and the fusion protein dimer containing PD-1 and IL-21 was designated as "BNS001". referred to as ". Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- a fusion protein containing a human PD-1 fragment, a persistent Fc (29, K) domain, and a mouse IL-21 fragment, a signal peptide (SEQ ID NO: 1), PD-1 fragment (SEQ ID NO: 2), and a linker are required.
- a fusion protein comprising a combined Ig hinge (SEQ ID NO: 3), an Fc (29, K) domain (SEQ ID NO: 50), a linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 22) in the above order from the N-terminus.
- a polynucleotide containing the nucleotide sequence (SEQ ID NO: 56) encoding (SEQ ID NO: 54) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 55) is called "hPD-1 D-Fc (29, K) -mIL-21", and the fusion protein dimer containing PD-1 and IL-21 is called "BNS001". referred to as ". Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Signal peptide SEQ ID NO: 1
- PD-1 fragment SEQ ID NO: 34
- linker-linked Ig hinge to produce a fusion protein including human PD-1 fragment, long-acting Fc (wt) domain and IL-21 (SEQ ID NO: 3), Fc (wt) domain (SEQ ID NO: 14), linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 6) in order from the N-terminus to a fusion protein (SEQ ID NO: 75)
- a polynucleotide containing the coding base sequence SEQ ID NO: 77
- GenScript's Gene Synthesis service was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 76) was called "hPD-1 ECD-Fc(wt)-hIL-21", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001". collectively. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Signal peptide (SEQ ID NO: 20), IL-21 (SEQ ID NO: 6), Ig hinge coupled with a linker to produce a fusion protein including a human IL-21 fragment, a persistent Fc (wt) domain, and a PD-1 fragment (SEQ ID NO: 38), an Fc (wt) domain (SEQ ID NO: 14), a linker (SEQ ID NO: 39), and a PD-1 fragment (SEQ ID NO: 2) in order from the N-terminus (SEQ ID NO: 78)
- a polynucleotide containing the nucleotide sequence encoding (SEQ ID NO: 80) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 79) was called "hIL-21-Fc(wt)-hPD-1 D", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001". collectively. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Signal peptide (SEQ ID NO: 20), IL-21 (SEQ ID NO: 6), Ig hinge coupled with a linker to produce a fusion protein including a human IL-21 fragment, a persistent Fc (wt) domain, and a PD-1 fragment (SEQ ID NO: 38), Fc (wt) domain (SEQ ID NO: 14), linker (SEQ ID NO: 39) and PD-1 fragment (SEQ ID NO: 34) in the above order from the N-terminus (SEQ ID NO: 81)
- a polynucleotide containing the nucleotide sequence encoding (SEQ ID NO: 83) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 82) was called "hIL-21-Fc(wt)-hPD-1 ECD", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001". collectively. Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- Fusion protein including human PD-1 fragment, long-acting Fc (wt, K) domain and IL-21, a signal peptide (SEQ ID NO: 1), PD-1 fragment (SEQ ID NO: 2), and a linker are combined.
- Fusion protein comprising Ig hinge (SEQ ID NO: 3), Fc (wt, K) domain (SEQ ID NO: 87), linker (SEQ ID NO: 5) and IL-21 (SEQ ID NO: 6) in the above order from the N-terminus (SEQ ID NO: 87) 88) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 89) was referred to as "hPD-1 D-Fc (wt, K)-hIL-21", and the fusion protein dimer containing PD-1 and IL-21 was designated as "BNS001". referred to as ". Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- a fusion protein containing a human PD-1 fragment, a persistent Fc (wt, K) domain and a mouse IL-21 fragment, a signal peptide (SEQ ID NO: 1), a PD-1 fragment (SEQ ID NO: 2), and a linker are Containing the combined Ig hinge (SEQ ID NO: 3), Fc (wt, K) domain (SEQ ID NO: 87), linker (SEQ ID NO: 5) and mouse IL-21 fragment (SEQ ID NO: 22) in the above order from the N-terminus
- a polynucleotide containing the nucleotide sequence (SEQ ID NO: 93) encoding the fusion protein (SEQ ID NO: 91) was synthesized through GenScript's Gene Synthesis service and introduced into the pcDNA3.4 TOPO vector (Thermo Fisher Scientific).
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 11 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 92) is called "hPD-1 D-Fc (wt, K) -mIL-21", and the fusion protein dimer containing PD-1 and IL-21 is called "BNS001". referred to as ". Purification and recovery of the fusion protein were performed in the same manner as in Preparation Example 1 above.
- a fusion protein including human PD-1 fragment, long-acting Fc (29)R domain and IL-21 fragment, a signal peptide (SEQ ID NO: 94), PD-1 fragment (SEQ ID NO: 2), and a linker are combined.
- a fusion protein comprising an Ig hinge (SEQ ID NO: 3), an Fc (29)R domain (SEQ ID NO: 95), a linker (SEQ ID NO: 5), and an IL-21 fragment (SEQ ID NO: 6) in the above order from the N-terminus (SEQ ID NO: 96) was introduced into the UCOE-GS vector (Merck KGaA) through Cosmogenetech's Gene Cloning service.
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 7 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 97) is called "hPD-1 D-Fc(29)R-IL-21", and the fusion protein dimer containing PD-1 and IL-21 is called "BNS001R”. referred to as
- the fusion protein in the recovered culture medium was first purified using Affinity Chromatography with Protein A Resin (Cytiva). After binding the fusion protein with DPBS buffer and washing the resin, only the bound fusion protein was eluted with 0.1 M glycine buffer (pH 3.3). The eluted fusion proteins were exchanged by dialysis with DPBS buffer for one day, quantified using NanoDrop, and subjected to SDS-PAGE analysis.
- a fusion protein including the human PD-1 fragment, the persistent Fc (29)RE domain and the IL-21 fragment, a signal peptide (SEQ ID NO: 94), PD-1 fragment (SEQ ID NO: 2), and a linker are combined.
- a fusion protein comprising an Ig hinge (SEQ ID NO: 3), an Fc (29) RE domain (SEQ ID NO: 99), a linker (SEQ ID NO: 5), and an IL-21 fragment (SEQ ID NO: 6) in the above order from the N-terminus (SEQ ID NO: 100) was introduced into the UCOE-GS vector (Merck KGaA) through Cosmogenetech's Gene Cloning service.
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 7 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 101) is called "hPD-1 D-Fc (29) RE-IL-21", and the fusion protein dimer containing PD-1 and IL-21 is called "BNS001RE”. referred to as Fusion protein purification and recovery were performed in the same manner as in Preparation Example 17.
- Signal peptide (SEQ ID NO: 94), PD-1v fragment (SEQ ID NO: 103), and linker are combined to produce a fusion protein including human PD-1 mutant fragment, persistent Fc (29)REA domain, and IL-21 fragment
- a fusion protein comprising an Ig hinge (SEQ ID NO: 3), an Fc (29) REA domain (SEQ ID NO: 104), a linker (SEQ ID NO: 5), and an IL-21 fragment (SEQ ID NO: 6) in the above order from the N-terminus (
- a polynucleotide containing the nucleotide sequence (SEQ ID NO: 107) encoding SEQ ID NO: 105) was introduced into the UCOE-GS vector (Merck KGaA) through Cosmogenetech's Gene Cloning service.
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 7 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 106) is called "hPD-1v D-Fc (29) REA-IL-21", and the fusion protein dimer containing PD-1 and IL-21 is called "BNS001REA”. referred to as Fusion protein purification and recovery were performed in the same manner as in Preparation Example 17.
- a fusion protein including the human PD-1 fragment, the persistent Fc (wt)R domain and the IL-21 fragment, a signal peptide (SEQ ID NO: 94), PD-1 fragment (SEQ ID NO: 2), and a linker are combined.
- a fusion protein comprising an Ig hinge (SEQ ID NO: 3), an Fc (wt) R domain (SEQ ID NO: 108), a linker (SEQ ID NO: 5) and an IL-21 fragment (SEQ ID NO: 6) in the above order from the N-terminus (SEQ ID NO: 108) 109) was introduced into the UCOE-GS vector (Merck KGaA) through Cosmogenetech's Gene Cloning service.
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 7 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 110) was called "hPD-1 D-Fc(wt)R-IL-21", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001wR". referred to as Fusion protein purification and recovery were performed in the same manner as in Preparation Example 17.
- a fusion protein including the human PD-1 fragment, the persistent Fc (wt) RE domain and the IL-21 fragment, a signal peptide (SEQ ID NO: 94), PD-1 fragment (SEQ ID NO: 2), and a linker are combined.
- a fusion protein comprising an Ig hinge (SEQ ID NO: 3), an Fc (wt) RE domain (SEQ ID NO: 112), a linker (SEQ ID NO: 5), and an IL-21 fragment (SEQ ID NO: 6) in the above order from the N-terminus (SEQ ID NO: 113) was introduced into the UCOE-GS vector (Merck KGaA) through Cosmogenetech's Gene Cloning service.
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 7 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 114) was called "hPD-1 D-Fc (wt) RE-IL-21", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001wRE". referred to as Fusion protein purification and recovery were performed in the same manner as in Preparation Example 17.
- a signal peptide (SEQ ID NO: 94), a PD-1v fragment (SEQ ID NO: 103), and a linker are combined to produce a fusion protein including a human PD-1 mutant fragment, a persistent Fc (wt)REA domain, and an IL-21 fragment.
- a fusion protein comprising an Ig hinge (SEQ ID NO: 3), an Fc (wt) REA domain (SEQ ID NO: 116), a linker (SEQ ID NO: 5), and an IL-21 fragment (SEQ ID NO: 6) in the above order from the N-terminus (
- a polynucleotide containing the nucleotide sequence (SEQ ID NO: 119) encoding SEQ ID NO: 117) was introduced into the UCOE-GS vector (Merck KGaA) through Cosmogenetech's Gene Cloning service.
- the expression vector was introduced into CHO cells (ExpiCHO-S TM , Thermo Fisher Scientific) to express the fusion protein. After transfection into CHO cells with the above expression vector, the cells were cultured for 7 days according to the manufacturer's Max Protocol, and then the culture medium was recovered and the fusion protein was purified.
- the purified fusion protein (SEQ ID NO: 118) was called "hPD-1v D-Fc (wt) REA-IL-21", and the fusion protein dimer containing PD-1 and IL-21 was called "BNS001wREA”. referred to as Fusion protein purification and recovery were performed in the same manner as in Preparation Example 17.
- the fusion protein was diluted to a concentration of 0.2, 0.4, 0.6, 0.8, or 1.0 mg/mL.
- UV absorbance was measured in the wavelength range of 230 nm to 400 nm using a UV spectrophotometer (Little lunatic, Unchained Labs).
- acid hydrolysis was performed.
- the hydrolyzed amino acid was derivatized and UPLC (Ultra Performance Liquid Chromatography) was performed using a Waters ACQUITY UPLC system.
- UPLC Ultra Performance Liquid Chromatography
- Mobile phase A was started with 5% AccQ-tag A solvent and mobile phase B was AccQ-tag B solvent, starting with an A:B initial ratio of 99.9:0.1, and a gradient system with a ratio of 40.4:59.6 by 7.5 minutes. performed.
- the sample injection amount was 1 ⁇ l, the flow rate was 0.7 mL/min, and the column temperature was 55°C.
- the data system used Enpower 3 Software, and the data were fit with the standard solution (I.S.) added in the sample pretreatment step.
- the extinction coefficient was determined by checking the content of the separated and purified BNS001 fusion protein according to the absorbance. The concentration of the fusion protein was confirmed by the extinction coefficient, and it was confirmed that the fusion protein was included at a concentration of 2.08 to 2.22 mg/mL (FIG. 3).
- the T m , T Agg & T onset analysis was performed.
- the buffer was exchanged with ultrapure water for the fusion protein, and the sample was prepared to have 1.25 times the protein concentration required for analysis using UNCHAINED LABS Little Lunatic equipment. 1.25 ⁇ of the prepared sample and 5 ⁇ of the formulation buffer were diluted with ultrapure water.
- the prepared sample was loaded into Uni (UNCHAINED LABS), and T m , T agg & T onset were measured with a Fluorescence & SLS detector at a wavelength of 266 nm from 15 to 95 ° C. Data were analyzed using UNCHAINED LABS software Uncle Analysis V4.01.
- thermodynamic stability of the isolated and purified BNS001 fusion protein was measured as shown in FIG. 4 .
- ATR correction is performed on the initially acquired FT-IR spectrum data, and 2300 cm in the subtracted spectrum obtained after correction The water vapor band of the -1 site was removed.
- a final zero-order FT-IR spectrum was obtained by fitting with a baseline correction and an 11-point Savitzky-Golay function.
- data in the 1700 to 1600 cm -1 interval were calculated with a linear-fit function to obtain a second derivative spectrum. Peaks were extracted from the second differential spectrum, and the extracted peaks were fitted with a Gaussian function. The size and position of the peak were adjusted with a tolerance of 3% to secure the final extracted spectrum.
- the secondary structure was assigned according to the wavenumber for the peaks extracted from the second differential spectrum, and the secondary structure content in each sample was calculated by calculating the peak area for the assigned peak.
- the molecular weight of the fusion protein was confirmed through Matrix Assisted Laser Desorption/Ionization Time of Flight (MALDI-TOF) mass spectrometry.
- MALDI-TOF Matrix Assisted Laser Desorption/Ionization Time of Flight
- DPBS pH 7.15
- concentration of the fusion protein was diluted to 1 mg/mL and then measured using the MALDI-TOF/TOFTM 5800 system (AB SCIEX).
- the positive ion linear mode was used as the mode, and the standard material was a mixture of IgG1 (charge +2, Average 74,249) and IgG1 (charge +1, Average 148,500).
- the matrix used was 10 mg/mL of Sinapinic acid (0.1% TFA/30% ACN), and the fusion protein sample was pretreated with a zip-tip, mixed with the matrix at a ratio of 1:5, and plated. 6 spots were injected. Data was analyzed using Data explorer version 4.11 (AB SCIEX), and data were derived by accumulating 6 times in the program. Molecular weight range (m/z) was measured from 20 to 200 kDa.
- the binding affinity was measured by surface plasmon resonance (SPR) analysis using a Biacore T200 (GE Healthcare).
- PD-L1 ligand was diluted to 3-4 ⁇ g/mL in C 2 H 3 NaO 2 (pH 4.0, pH 5.5) and amine coupled on a CM5 sensor chip (GE Healthcare) pre-activated with HBS-EP, pH 7.4. A ring was used to secure it to about 1000 RU. Sensorgrams were recorded by flowing dilutions of BNS001 fusion protein prepared with HBS-EP, pH 7.4, in a range of concentrations from 0.78 nM to 200 nM. The binding between the BNS001 fusion protein and the PD-L1 ligand was measured at a flow rate of 30 ⁇ l/min with an association period of 5 minutes and a dissociation period of 10 minutes. The sensor chip surface was regenerated by injecting 10 mM NaOH between each run. Binding kinetics were analyzed using data analysis software (Ver3.2) and data were fit using a 1:1 binding model.
- PD-L1 ligand was diluted to 3-4 ⁇ g/mL in C 2 H 3 NaO 2 (pH 4.0, pH 5.5) and amine coupled on a CM5 sensor chip (GE Healthcare) pre-activated with HBS-EP, pH 7.4. A ring was used to secure it to about 1000 RU. Sensorgrams were recorded by flowing dilutions of hPD-1 protein prepared with HBS-EP, pH 7.4, ranging in concentration from 0.78 nM to 200 nM.
- the association between the hPD-L1 ligand and the hPD-1 protein was measured at a flow rate of 30 ⁇ l/min with an association period of 5 minutes and a dissociation period of 10 minutes.
- the sensor chip surface was regenerated by injecting 10 mM NaOH between each run. Binding kinetics were analyzed using data analysis software (Ver3.2) and data were fit using a 1:1 binding model.
- the binding affinity between the hPD-L1 ligand and the hPD-1 protein was measured as shown in FIG. 8 . It was confirmed that the binding affinity between the BNS001 fusion protein and the hPD-L1 ligand was about 10 times higher than that between the hPD-1 protein and the hPD-L1 ligand.
- PD-L2 ligand was diluted to 3-4 ⁇ g/mL in C 2 H 3 NaO 2 (pH 4.0, pH 5.5) and amine coupled on a CM5 sensor chip (GE Healthcare) pre-activated with HBS-EP, pH 7.4. A ring was used to secure it to about 1000 RU. Sensorgrams were recorded by flowing dilutions of BNS001 fusion protein prepared with HBS-EP, pH 7.4, in a range of concentrations from 0.78 nM to 200 nM. The binding between the BNS001 fusion protein and the PD-L2 ligand was measured at a flow rate of 30 ⁇ l/min with an association period of 5 minutes and a dissociation period of 10 minutes. The sensor chip surface was regenerated by injecting 10 mM NaOH between each run. Binding kinetics were analyzed using data analysis software (Ver3.2) and data were fit using a 1:1 binding model.
- PD-L2 ligand was diluted to 3-4 ⁇ g/mL in C 2 H 3 NaO 2 (pH 4.0, pH 5.5) and amine coupled on a CM5 sensor chip (GE Healthcare) pre-activated with HBS-EP, pH 7.4. A ring was used to secure it to about 1000 RU. Sensorgrams were recorded by flowing dilutions of hPD-1 protein prepared with HBS-EP, pH 7.4, ranging in concentration from 0.78 nM to 200 nM.
- the association between the hPD-L2 ligand and the hPD-1 protein was measured at a flow rate of 30 ⁇ l/min with an association period of 5 minutes and a dissociation period of 10 minutes.
- the sensor chip surface was regenerated by injecting 10 mM NaOH between each run. Binding kinetics were analyzed using data analysis software (Ver3.2) and data were fit using a 1:1 binding model.
- the binding affinity between the hPD-L2 ligand and the hPD-1 protein was measured as shown in FIG. 10 . It was confirmed that the binding affinity between the BNS001 fusion protein and the hPD-L2 ligand was about 10 times higher than that between the hPD-1 protein and the hPD-L2 ligand.
- the hIL-21 receptor was diluted to 3-4 ⁇ g/mL in C 2 H 3 NaO 2 (pH 4.0, pH 5.5) and amine coupled on a CM5 sensor chip (GE Healthcare) pre-activated with HBS-EP, pH 7.4. A ring was used to secure it to about 1000 RU. Sensorgrams were recorded by flowing dilutions of BNS001 fusion protein prepared with HBS-EP, pH 7.4, in a range of concentrations from 0.78 nM to 200 nM. Binding between the BNS001 fusion protein and the hIL-21 receptor was measured at a flow rate of 30 ⁇ l/min with an association period of 5 minutes and a dissociation period of 10 minutes. The sensor chip surface was regenerated by injecting 10 mM NaOH between each run. Binding kinetics were analyzed using data analysis software (Ver3.2) and data were fit using a 1:1 binding model.
- the binding affinity between the BNS001 fusion protein and the hIL-21 receptor was compared.
- the hIL-21 receptor was diluted to 3-4 ⁇ g/mL in C 2 H 3 NaO 2 (pH 4.0, pH 5.5) and amine coupled on a CM5 sensor chip (GE Healthcare) pre-activated with HBS-EP, pH 7.4. A ring was used to secure it to about 1000 RU. Sensorgrams were recorded by running hIL-21 protein dilutions prepared with HBS-EP, pH 7.4 in a range of concentrations from 0.04 nM to 5 nM.
- Association between the hIL-21 receptor and the hIL-21 protein was measured at a flow rate of 30 ⁇ l/min with an association period of 5 minutes and a dissociation period of 10 minutes.
- the sensor chip surface was regenerated by injecting 10 mM NaOH between each run. Binding kinetics were analyzed using data analysis software (Ver3.2) and data were fit using a 1:1 binding model.
- the binding affinity between the hIL-21 receptor and the hIL-21 protein was measured as shown in FIG. 12 . It was confirmed that the binding affinity between the BNS001 fusion protein and the hIL-21 receptor was about 100 times lower than that between the hIL-21 protein and the hIL-21 receptor.
- the hFcRn receptor was diluted to 5 ⁇ g/mL in C 2 H 3 NaO 2 (pH 5.0) and pre-activated with 20 mM phosphate, 150 mM NaCl, pH 6.0 and pH 7.4 on a CM5 sensor chip (GE Healthcare). was fixed up to about 1000 RU using amine coupling. Sensorgrams were recorded by flowing diluted fusion protein solutions prepared with 20 mM phosphate, 150 mM NaCl, 0.05% Tween20, pH 6.0 in various concentrations ranging from 0.78 nM to 100 nM. Fusion protein association was measured at a flow rate of 30 ⁇ l/min with an association period of 4 minutes and a dissociation phase of 10 minutes. The sensor chip surface was regenerated by injecting 50 mM NaOH between each run. Binding kinetics were analyzed using data analysis software (Ver3.2) and data were fit using a 1:1 binding model.
- the binding affinity between the hFcRn receptor and the BNS001 fusion protein was measured as shown in FIG. 13 .
- PD-1 D-Fc(29)-IL-21 and PD-1 D-Fc(41)-IL-21 proteins are PD-1 D-Fc(wt)-IL-21 and PD-1 It was found to have a stronger binding affinity to the hFcRn receptor than to the D-Fc protein.
- the binding affinity was measured by immunological analysis.
- 0.1 mL of PD-L1-Fc ligand at a concentration of 100 ng/mL was immobilized in a 96-well plate (High binding plate, corning, #CT9018) at 4°C for 16 hours, followed by 250 ⁇ l of blocking buffer. blocked for 2 hours at room temperature. After blocking, the washing process was performed 4 times with 300 ⁇ l of wash buffer. Then, after subdividing the serially diluted BNS001 fusion protein into 50 ⁇ l portions, 50 ⁇ l of sample diluent was added thereto.
- 0.1 mL of PD-L2-Fc ligand at a concentration of 100 ng/mL was immobilized in a 96-well plate (High binding plate, corning, #CT9018) at 4°C for 16 hours, and then incubated at room temperature with 250 ⁇ L of blocking buffer. Blocked for an hour. After blocking, the washing process was performed 4 times with 300 ⁇ l of washing buffer. Then, 50 ⁇ l of the serially diluted BNS001 fusion protein was subdivided, and then 50 ⁇ l of the sample dilution was added.
- IL-21 receptor at 100 ng/mL was immobilized in 0.1 mL each in a 96-well plate (High binding plate, corning, #CT9018) at 4°C for 16 hours, and then treated with 250 ⁇ l of blocking buffer for 2 hours at room temperature. Blocked. After blocking, the washing process was performed 4 times with 300 ⁇ l of washing buffer. Then, 50 ⁇ l of the serially diluted BNS001 fusion protein was subdivided, and then 50 ⁇ l of the sample dilution was added.
- PathHunter ® eXpress Dimerization Assay Kit Eurofins
- PathHunter ® eXpress Dimerization Cells stored in liquid nitrogen were warmed with Cell Plating Reagent.
- SPL 96-well plates
- chemiluminescence was measured using Synergy Neo2 (BioTek). Based on the measured values, the EC 50 (Half maximal effective concentration; concentration of a drug that can show about half of the maximum effect that the drug can exhibit when the drug is administered) for the fusion protein was confirmed.
- PBMC peripheral blood mononuclear cells isolated from humans
- anti-CD3 antibody OKT3, 1 ⁇ g/ml, invitrogen
- anti-CD28 antibody CD28 .2, 1 ⁇ g/ml, Invitrogen
- culture medium RPMI1640 medium: FBS 10%, penicillin/streptomycin containing 200 ⁇ l
- RPMI1640 culture medium FBS 10%, penicillin/streptomycin 200 ⁇ l, anti-CD3/anti-CD28 antibody (1 ⁇ g/each)
- the BNS001 fusion protein and IL-21 were treated with or without anti-CD3/anti-CD28 antibody (1 ⁇ g/ml each), and cultured in an incubator for 3 days.
- PBMCs isolated from humans were thawed at 37°C and centrifuged at 1,500 rpm at 4°C for 5 minutes. After centrifugation, the suspension was removed, and resuspended in RPMI1640 culture medium (FBS 10%, penicillin/streptomycin 200 ⁇ l, BNS001 fusion protein, IL-21 protein (each 10 ⁇ g/ml)) at 37°C, 5% CO 2 cultured in an incubator.
- the cultured PBMCs were washed twice with cold PBS (Sigma, pH 7.4), centrifuged, and then 1.5 cells per 100 ⁇ l (10 6 cells/100 ⁇ l) with PBS (containing 1% FBS). Resuspended in a microtube for ml.
- the cells were stained with anti-CD8-PE-Texas Red (1:100, invitrogen, cat No. MHCD0817) for 30 minutes at room temperature. After dispensing 30 ⁇ l per well in a V-bottom 96-well plate, the degree of proliferation of these cells was confirmed by measuring the ratio of unlabeled cells among CD8+ T cells by flow cytometry.
- the BNS001 fusion protein activates the proliferation of CD8+ T cells to a degree similar to that of the IL-21 protein (FIG. 20).
- PBMCs isolated from humans were thawed at 37°C and centrifuged at 1,500 rpm at 4°C for 5 minutes. After centrifugation, the suspension was removed, and resuspended in RPMI1640 culture medium (FBS 10%, penicillin/streptomycin 200 ⁇ l, BNS001 fusion protein, IL-21 protein (each 10 ⁇ g/ml)) at 37°C, 5% CO 2 cultured in an incubator.
- the cultured PBMCs were washed twice with cold PBS (Sigma, pH 7.4 ), centrifuged, and then 1.5 cells per 100 ⁇ l (10 6 cells /100 ⁇ l) with PBS (containing 1% FBS). Resuspended in a microtube for ml.
- the cells were stained with anti-CD4-PE- Pacific Blue (2 ⁇ g/10 6 cells, BioLegend, cat No. 344620) for 30 minutes at room temperature. After dispensing 30 ⁇ l per well in a V-bottom 96-well plate, the degree of proliferation of these cells was confirmed by measuring the ratio of unlabeled cells among CD4+ T cells by flow cytometry.
- the BNS001 fusion protein activated the proliferation of CD4+ T cells to a degree similar to that of the IL-21 protein, but did not increase the proliferation of CD4+/FoxP3+ Treg cells (FIG. 21).
- PBMCs isolated from humans were slowly thawed at 37°C and centrifuged at 1,500 rpm at 4°C for 5 minutes. After centrifugation, the suspension was removed, and resuspended in RPMI1640 culture medium (FBS 10%, penicillin/streptomycin 200 ⁇ l, BNS001 fusion protein, IL-21 protein (each 10 ⁇ g/ml)) at 37°C, 5% CO 2 cultured in an incubator.
- the cultured PBMCs were washed twice with cold PBS (Sigma, pH 7.4 ), centrifuged, and then 1.5 cells per 100 ⁇ l (10 6 cells /100 ⁇ l) with PBS (containing 1% FBS). Resuspended in a microtube for ml.
- anti-CD56-PE 0.4 ⁇ g/10 6 cells, BioLegend, cat No. 362508
- anti-CD16-APC 5 ⁇ l/10 6 cells, BioLegend, cat No. 302012
- the BNS001 fusion protein activates the proliferation of NK cells to a degree similar to that of the IL-21 protein (FIGS. 22a and 22b).
- PD-L1 aAPC/CHO-K1 cells (target cells) stored in liquid nitrogen were thawed in a constant temperature water bath at 37° C. for 1 minute, and then suspended in a pre-warmed culture medium (Ham's F12: FBS 10%). 100 ⁇ l per well was dispensed into a 96-well white plate (SPL, cat No. 30196) and cultured in a 37°C, 5% CO 2 incubator.
- the plate was covered and stored at room temperature. After thawing the effector cells stored in liquid nitrogen for 1 minute in a constant temperature water bath at 37 ° C and suspending them in pre-warmed culture medium (Ham's F12: FBS 10%), the target cells and samples were prepared. 40 ⁇ l was dispensed per each well of the plate and cultured for 6 hours in a 37° C., 5% CO 2 incubator.
- Bio-Glo reagent was added, being careful not to create bubbles. Bio-Glo reagent was also added to the three edge wells and used as a blank to correct the background signal. After reacting at room temperature for 30 minutes, luminescence was measured with Synergy Neo2 (BioTek).
- the BNS001 fusion protein binds to PD-1 expressed in effector T cells and activates the function of T cells rather than inhibiting them (FIG. 23).
- PD-L2 aAPC/CHO-K1 cells stored in liquid nitrogen were thawed in a constant temperature water bath at 37° C. for 1 minute, and then suspended in a pre-warmed culture medium (Ham's F12: FBS 10%). 100 ⁇ l per well was dispensed into a 96-well white plate (SPL, cat No. 30196) and cultured in a 37°C, 5% CO 2 incubator.
- the plate was covered and stored at room temperature. After thawing the effector cells stored in liquid nitrogen for 1 minute in a constant temperature water bath at 37 ° C and suspending them in pre-warmed culture medium (Ham's F12: FBS 10%), the target cells and samples were prepared. 40 ⁇ l was dispensed per each well of the plate and cultured for 6 hours in a 37° C., 5% CO 2 incubator.
- Bio-Glo reagent was added, being careful not to create bubbles. Bio-Glo reagent was also added to the three edge wells and used as a blank to correct the background signal. After reacting at room temperature for 30 minutes, luminescence was measured with Synergy Neo2 (BioTek).
- the BNS001 fusion protein binds to PD-1 expressed in effector T cells and activates the function of T cells rather than inhibiting them (FIG. 24).
- Human melanoma cell line A375 (ATCC, CRL-1619) cells were seeded in 1 ⁇ 10 5 cells in a 6-well plate and cultured in a 37° C., 5% CO 2 incubator. The next day, after removing the culture medium, lentivirus transfected with firefly luciferase (fLuc) and GFP genes (GenTarget, cat No. LVP914-G) (FIG. 25) 25 MOI (Multiplicity of infection, 25 ⁇ l) was added and incubated for 4 hours. After culturing for 4 hours, the cells were recovered with 0.05% Trypsin-EDTA (Gibco) solution, and then transferred to a 150 mm culture dish (TPP) and cultured. During cultivation, only GFP-expressing cells were selectively cultured while observing under a fluorescence microscope, and Firefly luciferase-expressing human melanoma cell line A375-Luc-GFP cell line was established.
- fLuc firefly
- PBMC isolated from humans were stained by reacting with membrane-dye (Red) (Sigma, cat No. PKH26) dye at a concentration of 1.25 ⁇ M at room temperature for 1 minute, and then the staining reaction was stopped by adding the same volume of FBS.
- the dye not bound to the cells was centrifuged at 400 ⁇ g for 10 minutes to remove and wash the suspension, and then resuspended in RPMI1640 culture medium (FBS 10%, penicillin/streptomycin 200 ⁇ l). At this time, a total of three washing operations were performed. After resuspending in RPMI1640 culture medium (FBS 10%, penicillin/streptomycin 200 ⁇ l), fluorescence was observed.
- A375-fLuc-GFP cells (1 ⁇ 10 5 ) were divided and fluorescently stained PBMC (1 ⁇ 10 6 ) were placed in 6 wells. Divided into plates and co-cultured.
- the anti-CD3 antibody OKT3, 1 ⁇ g/ml, Invitrogen
- the anti-CD28 antibody CD28.2, 1 ⁇ g/ml, Invitrogen
- the BNS001 fusion protein (10 ⁇ g/ml) ml
- PBMC Malignant melanoma cells A375 (ATCC, # CRL-1619) and PBMC (ATCC, # To confirm the transcription and expression of PD-L1, PD-L2 and PD1 genes in PCS-800-011), reverse transcription PCR was performed.
- PBMCs were co-stimulated with an anti-CD3 antibody (1 ⁇ g/ml, Invitrogen) and an anti-CD28 antibody (1 ⁇ g/ml, Invitrogen), followed by active culture.
- Total RNA was extracted from each cell line, cDNA was synthesized (TAKARA, RR036A), PCR was performed using a primer set (Table 1), and PD-L1/L2 and PD-1 specific replication was performed in A375 and PBMC.
- the products 120 bp, 173 bp, 289 bp) were identified.
- Primer name order sequence number PD-L1 F 5'-TGGCATTTGCTGAACGCATTT-3' 120 PD-L1 R: 5'-TGCAGCCAGGTCTAATTGTTTT-3' 121 PD-L2 F: 5'-CAGCAATGTGACCCTGGAAT-3' 122 PD-L2 R: 5'-GGACTTGAGGTATTGTGGAACG-3' 123 PD-1 F: 5'-TGCAGCTTCTCCAACACATC-3' 124 PD-1 R: 5'-CTGCCCTTCTCTCTGTCACC-3' 125 GAPDH-2 F: 5'-AGCCGCATCTTCTTTTGCGT-3' 126 GAPDH-2 R: 5'-TGACGAACATGGGGGCATCA-3' 127
- PD-1 and PD-L2 genes in malignant melanoma cells (A375) and PD-1-specific replication products (120 bp, 173 bp, 289 bp) were identified in PBMCs in which immune cells were present (FIG. 27). ).
- the amount of human IFN- ⁇ secreted in the culture supernatant of each sample treated and cultured in Experimental Example 24.1. was measured using a human IFN- ⁇ ELISA kit (Biolegend, cat No.430103). An anti-human-IFN- ⁇ antibody was added to the ELISA plate and reacted overnight at 4° C. to coat the plate. Thereafter, blocking was performed for 1 hour at room temperature with a PBS solution to which 1% BSA was added. After washing with washing buffer (0.05% Tween-20 in PBS), the standard solution and each sample were diluted to concentrations of 0.4 nM, 1.5 nM and 7.5 nM, and reacted at room temperature for 2 hours.
- the cancer cell killing effect was statistically more significant in cells treated with BNS001 fusion protein than in untreated cells. It was confirmed that the increase was confirmed (FIG. 30).
- the A375 cell line was suspended in a culture medium (RPMI1640: FBS 10%, Antibiotic-Antimycotic 1%), dispensed into a 96-well white plate at a cell concentration of 1 ⁇ 10 4 cells/100 ⁇ l, and cultured overnight in an incubator. The next day, after removing 95 ⁇ l of the culture medium from the plate in which the A375 cells were seeded, 25 ⁇ l of ADCC Assay Buffer (ADCC Assay Buffer: RPMI1640 culture medium, low IgG serum 0.25%) prepared in advance was added to effector cells ( NFAT-luc/Fc ⁇ RIIIa) was incubated at room temperature while preparing.
- ADCC Assay Buffer RPMI1640 culture medium, low IgG serum 0.25%
- the luminescent activity of ADCC Assay is a test method that can obtain results only when target cells (A375) with surface antigens (PD-L1/L2), specific antibodies (BNS001 fusion protein), and effector cells expressing Fc ⁇ RIIIa are present.
- ADCC activity for the fusion protein was measured as shown in FIG. 32 .
- ELISA analysis was performed using Human PD-1 ELISA kit (Invitrogen, Cat. No., BMS2214) for quantitative analysis of the concentration of BNS001 fusion protein in blood.
- the BNS001 fusion protein was diluted to a concentration of 0.0625, 0.125, 0.25, 0.5, 1, 2, and 4 ng/mL, respectively, and anti-PD-1 antibody was placed in each well of a fixed plate (Invitrogen). It was dispensed by 50 ⁇ l. 50 ⁇ l of the sample diluent included in the kit and biotinylated anti IL-21 detection antibody (R&D) were added to each well, followed by reaction at room temperature for 2 hours.
- R&D biotinylated anti IL-21 detection antibody
- the plate was washed 4 times with 400 ⁇ l of washing buffer (Invitrogen), and then 100 ⁇ l of streptavidin-HRP (Invitrogen) was dispensed into each well. Thereafter, the reaction was performed at room temperature for 1 hour, and the washing process was performed 4 times with 400 ⁇ l of washing buffer (Invitrogen). 100 ⁇ l of TMB substrate solution (Invitrogen) was added to each well to develop color. Thereafter, the reaction was terminated by adding 100 ⁇ l of stop solution (Invitrogen), and analyzed using Synergy Neo2 (BioTek).
- BNS001 fusion protein prepared in a general BALB/c mouse animal model was caudal vein administered to a total of 3 animals at 5 mg/kg per animal. Mice injected intravenously were blood sampled at 0 min, 30 min, 1 hour, 6 hours, 24 hours, 3 days, 7 days, 14 days, 21 days, 28 days, 35 days, 42 days, and 50 days. Concentration analysis of the BNS001 fusion protein was performed in the form of plasma by the ELISA assay described in Experimental Example 26.1. The blood half-life of the BNS001 fusion protein was confirmed by non-compartmental analysis (NCA) using PKSolver.
- NCA non-compartmental analysis
- the blood half-life analysis results of the BNS001 fusion protein in BALB/c mice were measured as shown in FIG. 34 .
- PD-1 D-Fc (29)-IL-21, a persistent Fc variant, and PD-1 D-Fc (41)-IL-21 fusion protein have half-lives in blood compared to wild-type Fc. (wt) -IL-21 fusion protein was found to increase.
- BNS001 fusion protein prepared in a general hFcRn TG mouse animal model was administered intravenously to a total of 3 animals at 5 mg/kg per animal. Mice injected intravenously were blood sampled at 0 min, 30 min, 1 hour, 6 hours, 24 hours, 3 days, 7 days, 14 days, 21 days, 28 days, 35 days, 42 days, and 50 days. Concentration analysis of the BNS001 fusion protein was performed in the form of plasma by the ELISA assay described in Experimental Example 26.1. The blood half-life of the BNS001 fusion protein was confirmed by non-compartmental analysis (NCA) using PKSolver.
- NCA non-compartmental analysis
- Frozen mouse tumor cell line specifically colorectal carcinoma cell line CT-26 cell line 1 vial
- RPMI1640 medium containing 10% FBS (Gibco, 10082-147).
- FBS FBS
- the cells were placed in a flask for cell culture and cultured in an incubator at 37°C and 5% CO 2 .
- the cells were washed with PBS, diluted 10-fold with 2.5% Trypsin-EDTA (Gibco, 15090), and added thereto to separate the cells. After cell separation, the supernatant was removed by centrifugation (1,000 rpm, 5 minutes), and a cell suspension was obtained with a fresh medium.
- cell lines were prepared by diluting in a medium at a concentration of 5.0 ⁇ 10 6 cells/mL.
- mice 5-week-old male BALB/c mice (Coretech) were used.
- the cell line was transplanted, it was subcutaneously administered at a dose of 5.0 ⁇ 10 5 cells/0.1 mL/head. Cancer cells were transplanted, and after a certain period of time, the tumor volume was measured, and objects reaching about 60-90 mm 3 were isolated, and BNS001 fusion protein was intravenously administered at a dose of 5 mg/kg. A total of 4 administrations were performed once every 3 days after the first administration.
- PBS was administered as a negative control group
- atezolizumab an anti-PD-L1 antibody at 5 mg/kg
- the size of the tumor was measured twice a week (FIG. 36).
- mice of Experimental Example 27.1 the tumors extracted from only 3 mice per group were placed in RPMI medium containing 10% FBS and then used for FACS analysis.
- cancer tissues are separated into single cells, and then analyzed for T cells, NK cells, DC (Dendritic Cell), and macrophages using the antibodies listed in Table 2 below was carried out.
- CD3-efluor ® 450 (Thermo, 48-0031-82) CD45-PerCP-cyanine 5.5 (Thermo, 45-0451-82) CD4-PE-cy7 (Thermo, 25-0041-82) CD8-APC (Thermo, 17-0081-82) CD3-efluor ® 450 (Thermo, 48-0031-82) CD45-Super bright 600 (Thermo, 63-0451-82) CD335-PE (Thermo, 12-3351-82) CD11c-Percp-cy5 (Thermo, 45-0114-82) F4/80-PE-cy7 (Thermo, 25-4801-82) CD49b-APC (Thermo, 17-5971-82) CD11b-APC-eFluor 770 (Thermo, 47-0112-82)
- a cell line was prepared by diluting in a medium at a concentration of 5.0 ⁇ 10 7 cells/mL.
- peripheral blood mononuclear cells PBMC
- a cell line was prepared by diluting in a medium at a concentration of 2.5 ⁇ 10 8 cells/mL.
- a 6-week-old male NXG mouse (Janvier-labs) was used as the mouse, and after a one-week acclimatization process, body weight was measured to match the average weight of each group and regrouped.
- test substance mBNS001 was administered alone by dose to female C57BL/6 mice transplanted with MC38 cells, a colorectal cancer cell line derived from C57BL/6 mice, and this was performed to determine the effective dose ( Figure 43).
- MC38 cells as cells to be used for the test were thawed, put into a cell culture flask, and cultured in a 37°C, 5% CO 2 incubator (MCO-170M, Panasonic, Japan). It was floated using Trypsin-EDTA (Cat. 25200-072, Thermofisher scientific, USA). The suspended cells were collected by centrifugation (125 xg, 5 minutes) using a centrifuge, transferred to a new medium and a new flask, and subcultured. On the day of cell line transplantation, the cultured cells were collected after being placed in a centrifuge tube.
- the prepared MC38 cell suspension (5 ⁇ 10 5 cells/0.025 mL) was filled into a disposable syringe (31G, Cat. 328820, BD, USA), and the right back of the animal was injected. was implanted subcutaneously by administering 0.05 mL/head. General symptoms were observed once a day during engraftment and growth period after transplantation of the cell line.
- Intravenous administration was administered a total of 4 times according to the administration day using a disposable syringe (31G, 328820, BD, U.S.A.) (Table 3).
- G4 mBNS001 20 5 8 (2401-2408) G5 Normal 0 0 6 (2501-2506)
- Experimental Example 29.1 And as a result of administration of mBNS001 according to the test schedule and administration method of Experimental Example 29.4, a tendency to inhibit tumor growth in a dose-dependent manner by administration of the test substance was observed. In the 20 mg/kg dose of mBNS001-administered group, it was confirmed that tumor growth was effectively suppressed by administration of the test substance (FIG. 44 and FIG. 45).
- the dose of the BNS001 fusion protein would be effective in cancer treatment at a dose of 20 mg/kg or more when administered alone, and it was confirmed that a dose-dependent effect was obtained even at a dose below that. Accordingly, when the BNS001 fusion protein was developed as a combination treatment, it was found that the combination treatment and the 10 mg/kg dose of the BNS001 fusion protein were suitable for analyzing the effect of each test substance administration.
- a cell line was prepared in the same manner as in Experimental Example 29.2, except that CT-26 cells were used as the cells to be used for the test.
- the cell line was transplanted in the same manner as in Experimental Example 29.3. After transplantation, general symptoms were observed once a day during the engraftment and growth period.
- Intravenous administration was administered a total of 4 times according to the administration day using a disposable syringe (31G, 328820, BD, U.S.A.) (Table 4).
- G1 Vehicle 0 10 8 (2101-2108) G2 Anti-PD1 Abs 5 10 8 (2201-2208) G3 Anti-PDL1 Abs 10 10 8 (2301-2308) G4 mPD1-Fc-mIL-21 (mBNS001) 10 10 8 (2401-2408) G5 mPD1-Fc-mIL-21 (mBNS001) 20 10 8 (2501-2508) G6 mPD1-Fc 10 10 8 (2601-2608) G7 Fc-mIL-21 10 10 8 (2701-2708) G8 mPD1-Fc + Fc-mIL-21 5 + 5 10 8 (2801-2808)
- Experimental Example 30.1 And according to the test schedule and administration method of Experimental Example 30.4, mBNS001 (mPD1-Fc-mIL-21) was administered and the tumor growth inhibitory effect was evaluated.
- mBNS001 mPD1-Fc-mIL-21
- Mouse ( Mus musculus ) of the mammary gland As a type of malignant neoplasms, female BALB/c mice transplanted with EMT-6 cells, a breast cancer cell line derived from BALB/c mice, were allotransplanted with anti-PD1 Ab, anti-PDL1 Ab, and mPD1-Fc as test substances. After single or combined administration of -mIL-21, mPD1-Fc, and Fc-mIL-21, it was conducted to evaluate the tumor growth inhibitory effect according to the combination treatment of test substances (FIG. 51).
- a cell line was prepared in the same manner as in Experimental Example 29.2, except that EMT-6 cells were used as the cells to be used for the test.
- the cell line was transplanted in the same manner as in Experimental Example 29.3. After transplantation, general symptoms were observed once a day during the engraftment and growth period.
- Intravenous administration was administered a total of 4 times according to the administration day using a disposable syringe (31G, 328820, BD, U.S.A.) (Table 5).
- G1 Vehicle 0 10 8 (2101-2108) G2 Anti-PD1 Abs 5 10 8 (2201-2208) G3 Anti-PDL1 Abs 10 10 8 (2301-2308) G4 mPD1-Fc-mIL-21 (mBNS001) 10 10 8 (2401-2408) G5 mPD1-Fc-mIL-21 (mBNS001) 20 10 8 (2501-2508) G6 mPD1-Fc 10 10 8 (2601-2608) G7 Fc-mIL-21 10 10 8 (2701-2708) G8 mPD1-Fc + Fc-mIL-21 5 + 5 10 8 (2801-2808) G9 mPD1-Fc + Fc-mIL-21 10 + 10 8 (2901-2908)
- Experimental Example 31.1 And according to the test schedule and administration method of Experimental Example 31.4, mBNS001 (mPD1-Fc-mIL-21) was administered and the tumor growth inhibitory effect was evaluated. Upon validation, data selection was evaluated by selecting data excluding outliers on a box plot as shown in FIG. 52 .
- PHA Physicalhaemagglutinin
- human PBMCs obtained from donor 1, donor 2 and donor 3 and stimulated with PHA were treated with BNS001, hIgG, atezolizumab and IL-21 alone or in combination at various concentrations, respectively, and the degree of IFN- ⁇ secretion confirmed. 57 to 59 are analyzed and shown.
- the amount of IFN- ⁇ secretion was statistically significant when treated with BNS001 compared to when atezolizumab (anti-PD-L1) and IL-21 were treated alone or in combination at various concentrations. confirmed to increase.
- Human PBMCs obtained from three healthy donors were stimulated by treatment with PHA, and activity changes of CD4+ T cells, CD8+ T cells, NK cells, and B cell populations induced by BNS001 treatment were confirmed. Changes in the activity of the immune cell populations were confirmed by multi-color flow cytometry for expression levels of immune activation markers such as CD69, CD38, 4-1BB, 2B4, and OX40.
- immune activation markers such as CD69, CD38, 4-1BB, 2B4, and OX40.
- hIgG, atezolizumab (Anti-PD-L1 (Tecentriq, Roche)), IL-21, and atezolizumab + IL-21 were used as comparative controls.
- NK cells activation of NK cells, CD8+ T cells, CD4+ T cells, and B cells was induced in PBMCs obtained from donors treated with the BNS001 fusion protein.
- the activation of NK cells was strongly induced (FIGS. 60 to 63).
- human PBMCs obtained from donor 1, donor 2 and donor 3 and stimulated with PHA were treated with BNS001, hIgG, atezolizumab and IL-21 alone or in combination at various concentrations, respectively, and the activity of immune cell populations in PBMCs The results of measuring and analyzing the changes are analyzed and shown in FIGS. 64 to 66.
- NK cells, CD8+ T cells, NK cells, CD8+ T cells It was confirmed that activation of CD4+ T cells and B cells was induced. In particular, it was confirmed that activation of NK cells among the immune cell populations was strongly induced.
- a Human PBMC stimulation assay was performed to measure the immunoreactivity of CD8+ T cells. Immunoreactivity of CD8+ T cells was confirmed by measuring proliferation using CellTrace Violet (CTV) staining. At this time, hIgG, atezolizumab (Anti-PD-L1 (Tecentriq, Roche)), IL-21, and atezolizumab + IL-21 were used as comparative controls.
- CTV CellTrace Violet
- human PBMC frozen vials were thawed and then rested in a 37° C. incubator for 4 hours. Resting human PBMCs were stained with CellTrace Violet (CTV). CTV-stained PBMCs were seeded in a 96-well round bottom plate at 1 ⁇ 10 5 /well. PHA-P was diluted in RPMI complete medium to a final concentration of 1.5 ug/ml and added to a 96-well round bottom plate. Reagents were serially diluted for each condition in RPMI complete medium and added to a 96-well round bottom plate. After 3 days, CD8+ T cell proliferation was analyzed by FACS based on CTV staining.
- CTV CellTrace Violet
- PBMCs treated with the BNS001 fusion protein activated the proliferation of CD8+ T cells more than cells treated with atezolizumab and IL-21 alone or in combination (FIG. 67).
- a cell line was prepared in the same manner as in Experimental Example 28, except that the HCT116 cell line, a colon carcinoma cell line, was used as a frozen human tumor cell line.
- PBMC peripheral blood mononuclear cells isolated from humans were actively cultured for one week as in Experimental Example 18.1. After confirming viability using a microscope, a cell line was prepared by diluting in a medium at a concentration of 2.5 ⁇ 10 8 cells/mL.
- mice 6-week-old male NSG mice (NOD.Cg-B2mtm1UncPrkdcscidIl2rgtm1Wjl/SzJ) (Orient Bio) were used, and administration of human peripheral blood mononuclear cells 1 ⁇ 10 7 cells (hPBMC)/0.1 mL/head was used to prepare humanized mice. A liquid dose was administered subcutaneously into the tail vein. Humanized mice were identified by measuring hCD45+ expression in the blood by FACS analysis 14 days after administration of human peripheral blood mononuclear cells. After confirming the humanized mouse, when the cell line HCT116 was transplanted, 3 ⁇ 10 6 cells were administered subcutaneously.
- hPBMC human peripheral blood mononuclear cells
- BNS001 fusion protein (PD-1 D-Fc-IL-21) was administered at doses of 5, 10, and 20 mg/kg. was administered intraperitoneally. A total of 4 doses were administered once every 3 to 4 days after the first dose. At this time, saline (JW Choongwae Pharmaceutical) was administered as a negative control group, and the size of the tumor was measured twice a week to confirm the anticancer effect (FIG. 69).
- the size of the tumor was significantly reduced in a concentration-dependent manner, statistically significant, compared to the negative control group (Vehicle treatment) in the animal experiment of humanized mice transplanted with the HCT116 cancer cell line treated with the BNS001 fusion protein.
- the anticancer effect was the best when administered at a dose of 10 mg/kg (FIG. 70).
- mice Humanized mice were prepared by preparing the HCT116 cell line and PBMC in the same manner as in Experimental Example 35.1. Two days after transplanting HCT116 cancer cells into humanized mice, they were anesthetized with an inhalational anesthetic (2% isoflurane, Hana Pharmaceutical). Then, BNS001 fusion protein (PD-1 D-Fc-IL-21) was intraperitoneally administered at a dose of 10 mg/kg. A total of 4 doses were administered once every 3 to 4 days after the first dose. At this time, saline was administered as a negative control group, and BNS001D (PD-1 D-Fc) and BNS001I (Fc-IL-21) fusion proteins were administered alone or in combination as a comparative control group.
- BNS001D PD-1 D-Fc
- BNS001I Fc-IL-21
- the size of the tumor in the BNS001 fusion protein-administered group was smaller than that of the comparative control groups, BNS001D (PD-1 D-Fc) and BNS001I (Fc-IL-21)-administered groups.
- the BNS001 fusion protein administration group had a smaller tumor size than the BNS001D (PD-1 D-Fc) + BNS001I (Fc-IL-21) combination administration group (FIG. 73).
- the BNS001 fusion protein administration group was statistically significant compared to the commercial antibody pembrolizumab (Anti-PD-1 (Keytruda, MSD)) and avelumab (Anti-PD-L1 (Bavencio, Merck)) administration groups used as positive control groups. It was confirmed that the size of the tumor was significantly reduced. Compared to the atezolizumab (Anti-PD-L1 (Tecentriq, Roche)) administration group, it was confirmed that the BNS001 fusion protein showed an equivalent level of tumor size reduction (FIG. 75).
- a humanized mouse was prepared by preparing the A549 cell line and PBMC in the same manner as in Experimental Example 35.1, except that the A549 cell line, which is a lung cancer (NSCLC) cell line, was used as a frozen human tumor cell line.
- NSCLC lung cancer
- saline JW Pharmaceutical
- saline JW Pharmaceutical
- atezolizumab Anti-PD-L1 (Tecentriq, Roche)
- avelumab Avelumab; Anti-PD-L1 (Tecentriq, Roche)
- L1 Bovencio, Merck
- pembrolizumab Anti-PD-1 (Keytruda, MSD)
- Tumor size and weight were measured twice a week to confirm the anticancer effect of the administered substance (FIG. 77).
- the size of the tumor was significantly reduced statistically significantly compared to the negative control group in the animal experiment of humanized mice transplanted with the A549 cancer cell line treated with the BNS001 fusion protein (PD-1 D-Fc-IL-21).
- the BNS001 fusion protein administration group was commercially available antibodies atezolizumab (Anti-PD-L1 (Tecentriq, Roche)), pembrolizumab (Anti-PD-1 (Keytruda, MSD)) and avelumab (Anti-PD-L1 (Keytruda, MSD)) used as positive control groups.
- PD-L1 (Bavencio, Merck)) showed an equivalent level of tumor size reduction compared to the administration group (FIG. 78).
- the MDA-MB-231 cell line and PBMC were prepared in the same manner as in Experimental Example 35.1 to prepare a humanized mouse.
- TNBC breast carcinoma
- MDA-MB-231 cancer cells were anesthetized with an inhalational anesthetic (2% isoflurane, Hana Pharmaceutical).
- BNS001 fusion protein (PD-1 D-Fc-IL-21) was intraperitoneally administered at a dose of 10 mg/kg. A total of 4 doses were administered once every 3 to 4 days after the first dose.
- saline JW Pharmaceutical
- saline JW Pharmaceutical
- atezolizumab Anti-PD-L1 (Tecentriq, Roche)
- avelumab Avelumab
- Anti-PD-L1 Tecentriq, Roche
- L1 Bovencio, Merck
- pembrolizumab Anti-PD-1 (Keytruda, MSD)
- tumor size and body weight were measured twice a week (FIG. 80).
- the size of the tumor was significantly reduced compared to the negative control group in the animal experiment of MDA-MB-231 cancer cell line transplanted with humanized mice treated with the BNS001 fusion protein (PD-1 D-Fc-IL-21).
- the BNS001 fusion protein administration group was commercially available antibodies atezolizumab (Anti-PD-L1 (Tecentriq, Roche)), pembrolizumab (Anti-PD-1 (Keytruda, MSD)) and avelumab (Anti-PD-L1 (Keytruda, MSD)) used as positive control groups.
- PD-L1 (Bavencio, Merck)) was confirmed to show a decrease in tumor size compared to the administration group (FIG. 81).
- a lung cancer lung carcinoma, NSCLC
- NCI-H1975 L858R / T790M double mutations on EGFR
- PBMC peripheral blood mononuclear cells
- NCI-H1975 cell line and PBMC were prepared in the same manner as in Experimental Example 35.1.
- Humanized mice were constructed. Two days after transplanting NCI-H1975 cancer cells into humanized mice, they were anesthetized with an inhalational anesthetic (2% isoflurane, Hana Pharmaceutical). Then, BNS001 fusion protein (PD-1 D-Fc-IL-21) was intraperitoneally administered at a dose of 10 mg/kg. A total of 4 doses were administered once every 3 to 4 days after the first dose.
- PD-1 D-Fc-IL-21 BNS001 fusion protein
- saline JW Pharmaceutical
- Bevacizumab Anti-VEGF (Avastin, Genentech)
- Ramucirumab Ramucirumab
- Anti-VEGFR2 Cheramza , Lilly
- cetuximab Anti-EGFR (Erbitux, BMS)
- amivantamab Anti-EGFR/Anti-MET (Rybrevant, Jassen)
- tumor size and body weight were measured twice a week (FIG. 83).
- the BNS001 fusion protein-administered group showed a decrease in tumor size compared to the commercially available antibodies Ramucirumab (Anti-VEGFR2 (Cyramza, Lilly)) and Cetuximab (Anti-EGFR (Erbitux, BMS)) used as positive controls. did In addition, the BNS001 fusion protein-administered group showed an equivalent reduction in tumor size compared to bevacizumab (Anti-VEGF (Avastin, Genentech)) and amivantamab (Anti-EGFR/Anti-MET (Rybrevant, Jassen)). It was confirmed (FIGS. 84 and 86).
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Toxicology (AREA)
- Molecular Biology (AREA)
- Gastroenterology & Hepatology (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Cell Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Peptides Or Proteins (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Epidemiology (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
프라이머명 | 서열 | 서열번호 |
PD-L1 | F: 5'-TGGCATTTGCTGAACGCATTT-3' | 120 |
PD-L1 | R: 5'-TGCAGCCAGGTCTAATTGTTTT-3' | 121 |
PD-L2 | F: 5'-CAGCAATGTGACCCTGGAAT-3' | 122 |
PD-L2 | R: 5'-GGACTTGAGGTATGTGGAACG-3' | 123 |
PD-1 | F: 5'-TGCAGCTTCTCCAACACATC-3' | 124 |
PD-1 | R: 5'-CTGCCCTTCTCTCTGTCACC-3' | 125 |
GAPDH-2 | F: 5'-AGCCGCATCTTCTTTTGCGT-3' | 126 |
GAPDH-2 | R: 5'-TGACGAACATGGGGGCATCA-3' | 127 |
이펙터 T 세포 | NK 세포, DC, 대식세포 |
CD3-efluor® 450 (Thermo, 48-0031-82) CD45-PerCP-cyanine 5.5 (Thermo, 45-0451-82) CD4-PE-cy7 (Thermo, 25-0041-82) CD8-APC (Thermo, 17-0081-82) |
CD3-efluor® 450 (Thermo, 48-0031-82) CD45-Super bright 600 (Thermo, 63-0451-82) CD335-PE (Thermo, 12-3351-82) CD11c-Percp-cy5 (Thermo, 45-0114-82) F4/80-PE-cy7 (Thermo, 25-4801-82) CD49b-APC (Thermo, 17-5971-82) CD11b-APC-eFluor 770 (Thermo, 47-0112-82) |
그룹 | 투여 용량 (mg/kg) |
투여액량 (mL/kg) | 동물 수 (개체번호) |
|
G1 | 비히클(Vehicle) | 0 | 5 | 8(2101-2108) |
G2 | mBNS001 | 5 | 5 | 8(2201-2208) |
G3 | mBNS001 | 10 | 5 | 8(2301-2308) |
G4 | mBNS001 | 20 | 5 | 8(2401-2408) |
G5 | 정상(Normal) | 0 | 0 | 6(2501-2506) |
그룹 | 투여 용량 (mg/kg) |
투여액량 (mL/kg) | 동물 수 (개체번호) |
|
G1 | 비히클(Vehicle) | 0 | 10 | 8(2101-2108) |
G2 | Anti-PD1 Ab | 5 | 10 | 8(2201-2208) |
G3 | Anti-PDL1 Ab | 10 | 10 | 8(2301-2308) |
G4 | mPD1-Fc-mIL-21(mBNS001) | 10 | 10 | 8(2401-2408) |
G5 | mPD1-Fc-mIL-21(mBNS001) | 20 | 10 | 8(2501-2508) |
G6 | mPD1-Fc | 10 | 10 | 8(2601-2608) |
G7 | Fc-mIL-21 | 10 | 10 | 8(2701-2708) |
G8 | mPD1-Fc + Fc-mIL-21 | 5 + 5 | 10 | 8(2801-2808) |
그룹 | 투여 용량 (mg/kg) |
투여액량 (mL/kg) | 동물 수 (개체번호) |
|
G1 | 비히클(Vehicle) | 0 | 10 | 8(2101-2108) |
G2 | Anti-PD1 Ab | 5 | 10 | 8(2201-2208) |
G3 | Anti-PDL1 Ab | 10 | 10 | 8(2301-2308) |
G4 | mPD1-Fc-mIL-21(mBNS001) | 10 | 10 | 8(2401-2408) |
G5 | mPD1-Fc-mIL-21(mBNS001) | 20 | 10 | 8(2501-2508) |
G6 | mPD1-Fc | 10 | 10 | 8(2601-2608) |
G7 | Fc-mIL-21 | 10 | 10 | 8(2701-2708) |
G8 | mPD1-Fc + Fc-mIL-21 | 5 + 5 | 10 | 8(2801-2808) |
G9 | mPD1-Fc + Fc-mIL-21 | 10 + 10 | 10 | 8(2901-2908) |
Claims (27)
- PD-1 단백질 및 IL-21 단백질을 포함하는 융합단백질.
- 제1항에 있어서,상기 PD-1 단백질 및 상기 IL-21 단백질은 링커에 의해 결합된 것인, 융합단백질.
- 제1항에 있어서,상기 PD-1 단백질은 서열번호 2, 21, 34 또는 103의 아미노산 서열을 갖는 것인, 융합단백질.
- 제1항에 있어서,상기 IL-21 단백질은 서열번호 6 또는 22의 아미노산 서열을 갖는 것인, 융합단백질.
- 제2항에 있어서,상기 링커는 면역글로불린의 Fc 도메인인 것인, 융합단백질.
- 제5항에 있어서,상기 Fc 도메인은 야생형 또는 변이체인 것인, 융합단백질.
- 제6항에 있어서,상기 Fc 도메인의 야생형은 서열번호 14의 아미노산 서열을 갖는 것인, 융합단백질.
- 제6항에 있어서,상기 Fc 도메인의 변이체는 서열번호 14의 아미노산 서열에서 Q81R, M198L, L79G, T136W, Q81R/M198L, L79G/M198L 또는 Q81R/T136W/M198L의 치환이 일어난 것인, 융합단백질.
- 제8항에 있어서,상기 Fc 도메인의 변이체는 서열번호 4, 10, 50, 87, 95, 99, 104, 108, 112, 또는 116의 아미노산 서열을 갖는 것인, 융합단백질.
- 제6항에 있어서,상기 Fc 도메인의 변이체는 야생형과 비교하여 반감기(Half-life)가 증가된 것인, 융합단백질.
- 제1항에 있어서,상기 융합단백질은 하기 구조식 I 또는 II로 이루어진 것인, 융합단백질:N'-A-[L1]n-Fc 도메인-[L2]m-B-C' IN'-B-[L1]n-Fc 도메인-[L2]m-A-C' II이때, 상기 구조식 I 및 II에 있어서,상기 N'은 융합단백질의 N-말단이고,상기 C'는 융합단백질의 C-말단이며,상기 A는 PD-1 단백질 또는 이의 단편이고,상기 B는 IL-21 단백질 또는 이의 변이체이며,상기 L1 및 L2는 펩타이드 링커이고,상기 n 및 m은 각각 독립적으로, O 또는 1이다.
- 제11항에 있어서,상기 L1이 서열번호 3 또는 38의 아미노산 서열로 이루어진 펩타이드 링커인 것인, 융합단백질.
- 제11항에 있어서,상기 L2가 서열번호 5, 39 또는 57의 아미노산 서열로 이루어진 펩타이드 링커인 것인, 융합단백질.
- 제11항에 있어서,상기 융합단백질은 구조식 I로 이루어진 것인, 융합단백질.
- 제1항에 있어서,상기 융합단백질은 서열번호 8, 12, 16, 24, 27, 32, 36, 41, 44, 52, 55, 76, 79, 82, 89, 92, 97, 101, 106, 110, 114 또는 118의 아미노산 서열에 대해 85% 혹은 그 이상의 서열 동일성을 갖는 것인, 융합단백질.
- 제1항 내지 제15항 중 어느 한 항의 융합단백질 두 개가 결합된 융합단백질 이량체.
- 제16항에 있어서,상기 융합단백질 이량체는 동형이량체(homodimer)인 것인, 융합단백질 이량체.
- 제1항 내지 제15항 중 어느 한 항의 융합단백질을 코딩하는 폴리뉴클레오티드.
- 제18항에 있어서,상기 폴리뉴클레오티드는 서열번호 9, 13, 17, 25, 28, 33, 37, 42, 45, 53, 56, 77, 80, 83, 90, 93, 98, 102, 107, 111, 115 또는 119의 염기서열에 대해 85% 혹은 그 이상의 서열 동일성을 갖는 것인, 폴리뉴클레오티드.
- 제18항의 폴리뉴클레오티드를 포함하는 벡터.
- 제20항의 벡터로 형질전환된 숙주세포.
- 제1항 내지 제15항 중 어느 한 항의 융합단백질; 또는 제16항 또는 제17항의 융합단백질 이량체;를 유효성분으로 포함하는 암질환 예방 또는 치료용 약학 조성물.
- 제22항에 있어서,상기 약학 조성물이 약제학적으로 허용가능한 담체를 더 포함하는 것인, 약학 조성물.
- 제23항에 있어서,상기 암은 대장암, 흑색종, 위암, 간암, 폐암, 유방암, 전립선암, 난소암, 췌장암, 자궁경부암, 방광암, 신장암, 담낭암, 갑상선암, 후두암, 급성 골수성 백혈병, 뇌종양, 신경모세포종, 망막 모세포종, 두경부암, 침샘암 및 림프종으로 구성된 군에서 선택되는 어느 하나인, 약학 조성물.
- 암질환 예방 또는 치료용 약제를 제조하기 위한 제16항 또는 제17항의 융합단백질 이량체의 용도.
- 암질환을 예방하거나 치료하기 위한 제16항 또는 제17항의 융합단백질 이량체의 암질환 예방 또는 치료용 용도.
- 제16항 또는 제17항의 융합단백질 이량체를 개체에 투여하는 단계를 포함하는 암질환 예방 또는 치료 방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280078359.3A CN118302439A (zh) | 2021-09-24 | 2022-09-23 | 包含pd-1和il-21的融合蛋白二聚体及其用途 |
CA3233084A CA3233084A1 (en) | 2021-09-24 | 2022-09-23 | Fusion protein dimer comprising pd-1 and il-21, and use thereof |
JP2024518576A JP2024536837A (ja) | 2021-09-24 | 2022-09-23 | Pd-1とil-21とを含む融合タンパク質二量体、及びその使用 |
AU2022350320A AU2022350320A1 (en) | 2021-09-24 | 2022-09-23 | Fusion protein dimer including pd-1 and il-21, and use thereof |
EP22873219.4A EP4406966A1 (en) | 2021-09-24 | 2022-09-23 | Fusion protein dimer including pd-1 and il-21, and use thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2021-0126052 | 2021-09-24 | ||
KR20210126052 | 2021-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023048516A1 true WO2023048516A1 (ko) | 2023-03-30 |
Family
ID=85720960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2022/014297 WO2023048516A1 (ko) | 2021-09-24 | 2022-09-23 | Pd-1 및 il-21을 포함하는 융합단백질 이량체 및 이의 용도 |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP4406966A1 (ko) |
JP (1) | JP2024536837A (ko) |
KR (1) | KR20230044130A (ko) |
CN (1) | CN118302439A (ko) |
AU (1) | AU2022350320A1 (ko) |
CA (1) | CA3233084A1 (ko) |
WO (1) | WO2023048516A1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12024559B2 (en) | 2020-10-23 | 2024-07-02 | Asher Biotherapeutics, Inc. | Fusions with CD8 antigen binding molecules for modulating immune cell function |
US12122827B2 (en) | 2021-05-19 | 2024-10-22 | Asher Biotherapeutics, Inc. | IL-21 polypeptides and targeted constructs |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8034326B2 (en) | 2005-04-18 | 2011-10-11 | Novo Nordisk A/S | IL-21 variants |
WO2013169693A1 (en) * | 2012-05-09 | 2013-11-14 | Bristol-Myers Squibb Company | Methods of treating cancer using an il-21 polypeptide and an anti-pd-1 antibody |
KR101957431B1 (ko) | 2018-01-10 | 2019-03-12 | 국민대학교 산학협력단 | 혈중 반감기 연장을 위한 항체 Fc 변이체들 |
CN110894241A (zh) * | 2018-09-13 | 2020-03-20 | 中国科学院生物物理研究所 | 一种靶向抗原特异性t细胞诱导其向记忆干性细胞分化的融合蛋白 |
KR20200035291A (ko) * | 2017-08-03 | 2020-04-02 | 암젠 인크 | 인터류킨-21 뮤테인 및 치료 방법 |
-
2022
- 2022-09-23 WO PCT/KR2022/014297 patent/WO2023048516A1/ko active Application Filing
- 2022-09-23 AU AU2022350320A patent/AU2022350320A1/en active Pending
- 2022-09-23 CN CN202280078359.3A patent/CN118302439A/zh active Pending
- 2022-09-23 CA CA3233084A patent/CA3233084A1/en active Pending
- 2022-09-23 JP JP2024518576A patent/JP2024536837A/ja active Pending
- 2022-09-23 KR KR1020220120838A patent/KR20230044130A/ko unknown
- 2022-09-23 EP EP22873219.4A patent/EP4406966A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8034326B2 (en) | 2005-04-18 | 2011-10-11 | Novo Nordisk A/S | IL-21 variants |
WO2013169693A1 (en) * | 2012-05-09 | 2013-11-14 | Bristol-Myers Squibb Company | Methods of treating cancer using an il-21 polypeptide and an anti-pd-1 antibody |
KR20200035291A (ko) * | 2017-08-03 | 2020-04-02 | 암젠 인크 | 인터류킨-21 뮤테인 및 치료 방법 |
KR101957431B1 (ko) | 2018-01-10 | 2019-03-12 | 국민대학교 산학협력단 | 혈중 반감기 연장을 위한 항체 Fc 변이체들 |
CN110894241A (zh) * | 2018-09-13 | 2020-03-20 | 中国科学院生物物理研究所 | 一种靶向抗原特异性t细胞诱导其向记忆干性细胞分化的融合蛋白 |
Non-Patent Citations (13)
Title |
---|
"GenBank", Database accession no. NM_021782.3 |
"Genbank", Database accession no. NP 068554.1 |
"Remington's Pharmaceutical Sciences", 1995 |
"UniProt", Database accession no. Q9HBE4 |
"UniProtkB", Database accession no. Q15116 |
DURM GREGORY, FRENTZAS SOPHIA, RASMUSSEN ERIK, NAJMI SALTANAT, SADRAEI NOOSHIN: "417 Design and rationale of a phase 1 study evaluating AMG 256, a novel, targeted, IL-21 receptor agonist and anti-PD-1 antibody, in patients with advanced solid tumors", REGULAR AND YOUNG INVESTIGATOR AWARD ABSTRACTS, BMJ PUBLISHING GROUP LTD, 1 November 2020 (2020-11-01), pages A254.1 - A254, XP093054553, DOI: 10.1136/jitc-2020-SITC2020.0417 * |
ENGELSUHLMANN, ANGEW CHEM INTED ENGL., vol. 37, 1988, pages 73 - 127 |
LI YING, CONG YANNI, JIA MINGMING, HE QIANQIAN, ZHONG HAIQING, ZHAO YUN, LI HANG, YAN MEINING, YOU JIA, LIU JIA, CHEN LIEPING, HAN: "Targeting IL-21 to tumor-reactive T cells enhances memory T cell responses and anti-PD-1 antibody therapy", NATURE COMMUNICATIONS, vol. 12, no. 1, XP093054527, DOI: 10.1038/s41467-021-21241-0 * |
MIGUEL F. SANMAMED ET AL., CANCER J., vol. 20, no. 4, 2014, pages 256 - 261 |
SARA PILOTTO ET AL., ANTI-CANCER AGENTS MED CHEM., vol. 15, no. 3, 2015, pages 307 - 313 |
SHEN SHANLING, SCKISEL GAIL, SAHOO ANUPAMA, LALANI ALMIN, OTTER DOUG DEN, PEARSON JOSH, DEVOSS JASON, CHENG JAY, CASEY STEPHANIE C: "Engineered IL-21 Cytokine Muteins Fused to Anti-PD-1 Antibodies Can Improve CD8+ T Cell Function and Anti-tumor Immunity", FRONTIERS IN IMMUNOLOGY, vol. 11, 8 May 2020 (2020-05-08), XP055854614, DOI: 10.3389/fimmu.2020.00832 * |
WENJUN OUYANG ET AL., IMMUNITY, vol. 28, no. 4, 2008, pages 454 - 467 |
XUE DIYUAN, HSU ERIC, FU YANG-XIN, PENG HUA: "Next-generation cytokines for cancer immunotherapy", ANTIBODY THERAPEUTICS, vol. 4, no. 2, 1 April 2021 (2021-04-01), pages 123 - 133, XP055925224, DOI: 10.1093/abt/tbab014 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US12024559B2 (en) | 2020-10-23 | 2024-07-02 | Asher Biotherapeutics, Inc. | Fusions with CD8 antigen binding molecules for modulating immune cell function |
US12122827B2 (en) | 2021-05-19 | 2024-10-22 | Asher Biotherapeutics, Inc. | IL-21 polypeptides and targeted constructs |
Also Published As
Publication number | Publication date |
---|---|
CN118302439A (zh) | 2024-07-05 |
KR20230044130A (ko) | 2023-04-03 |
EP4406966A1 (en) | 2024-07-31 |
CA3233084A1 (en) | 2023-03-30 |
AU2022350320A1 (en) | 2024-04-11 |
JP2024536837A (ja) | 2024-10-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020060122A1 (ko) | Il-2 단백질 및 cd80 단백질을 포함하는 융합단백질 및 이의 용도 | |
WO2023048516A1 (ko) | Pd-1 및 il-21을 포함하는 융합단백질 이량체 및 이의 용도 | |
WO2020050667A1 (ko) | 고형암을 위한 키메라 항원 수용체 및 키메라 항원 수용체가 발현된 t 세포 | |
WO2019225787A1 (ko) | 항-b7-h3 항체 및 그 용도 | |
WO2018194381A1 (ko) | Lrig-1 단백질에 특이적인 결합 분자 및 이의 용도 | |
WO2020080908A1 (ko) | 항-l1cam 항체 또는 그의 항원결합 단편, 및 이를 포함하는 키메라 항원 수용체 | |
WO2018030806A1 (ko) | 항체 중쇄불변부위 이종이중체에 융합된 사이토카인 및 이를 포함하는 약제학적 조성물 | |
WO2019107812A1 (ko) | 세포의 세포질에 침투하여 세포내 활성화된 ras를 억제하는 항체 및 이의 용도 | |
WO2020080854A1 (ko) | Lrig-1 단백질에 특이적인 결합 분자 및 이의 용도 | |
WO2021187922A1 (ko) | Il-2 단백질 및 cd80 단백질을 포함하는 융합단백질 및 항암제를 포함하는 암 치료용 약학 조성물 | |
WO2022211537A1 (ko) | 신규한 면역 활성 인터루킨 2 아날로그 결합체 및 이의 제조 방법 | |
WO2021107689A1 (ko) | Il-2 단백질 및 cd80 단백질을 포함하는 융합단백질 및 면역관문 억제제를 포함하는 암 치료용 약학 조성물 | |
WO2021158073A1 (ko) | 항원 유래 t 세포 항원 에피토프 또는 이를 포함하는 펩타이드를 세포 표면에 제시하기 위한 융합항체, 및 이를 포함하는 조성물 | |
WO2010047509A2 (ko) | 친화도와 안정성이 향상된 항 dr5 항체, 및 이를 포함하는 암 예방 또는 치료용 조성물 | |
WO2018026248A1 (ko) | 프로그램화된 세포 사멸 단백질(pd-1)에 대한 신규 항체 및 이의 용도 | |
WO2021071319A1 (ko) | 다중 특이적 융합 단백질 및 이의 용도 | |
WO2022139493A1 (ko) | TGF-β 신호전달을 억제할 수 있는 신규한 펩타이드 및 이의 용도 | |
WO2019125070A1 (ko) | 악성 b 세포를 특이적으로 인지하는 항체 또는 그의 항원 결합 단편, 이를 포함하는 키메라 항원 수용체 및 이의 용도 | |
WO2022005174A1 (ko) | 항-lag-3 항체 및 il-2를 포함하는 융합단백질 및 이의 용도 | |
WO2022035200A1 (ko) | Il-12 및 항-cd20 항체를 포함하는 융합단백질 및 이의 용도 | |
WO2021153979A1 (ko) | 항-taa 항체, 항-pd-l1 항체 및 il-2를 포함하는 융합단백질 및 이의 용도 | |
WO2023048518A1 (ko) | Pd-1 및 il-15를 포함하는 융합단백질 이량체 및 이의 용도 | |
WO2021006714A1 (ko) | 면역체크포인트 억제제 저항성 암의 예방, 개선 또는 치료용 조성물 | |
WO2022010271A1 (ko) | 보체 경로 억제제 및 혈관신생 억제제를 포함하는 융합단백질 및 이의 용도 | |
WO2023224429A1 (ko) | Light 단백질 및 항-fap 항체를 포함하는 융합단백질 및 이의 용도 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22873219 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3233084 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2024518576 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022350320 Country of ref document: AU Ref document number: AU2022350320 Country of ref document: AU |
|
ENP | Entry into the national phase |
Ref document number: 2022350320 Country of ref document: AU Date of ref document: 20220923 Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022873219 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022873219 Country of ref document: EP Effective date: 20240424 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280078359.3 Country of ref document: CN |