JP5393144B2 - Hla−a*3303拘束性wt1ペプチド、およびそれを含む医薬組成物 - Google Patents
Hla−a*3303拘束性wt1ペプチド、およびそれを含む医薬組成物 Download PDFInfo
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- JP5393144B2 JP5393144B2 JP2008501735A JP2008501735A JP5393144B2 JP 5393144 B2 JP5393144 B2 JP 5393144B2 JP 2008501735 A JP2008501735 A JP 2008501735A JP 2008501735 A JP2008501735 A JP 2008501735A JP 5393144 B2 JP5393144 B2 JP 5393144B2
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Description
(1)WT1タンパク質由来の9個の連続するアミノ酸からなるアミノ酸配列を含むペプチドであって、該9個の連続するアミノ酸からなるアミノ酸配列の第2位のアミノ酸がAla、Ile、Leu、Val、Phe、Tyr、Ser、およびAspからなる群から選択されるものであり、第9位のアミノ酸がArgである、ペプチド、
(2)アミノ酸配列が以下の群:
Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
から選択されるものである、(1)記載のペプチド、
(3)アミノ酸配列がSer Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)である、(2)記載のペプチド、
(4)(1)記載のペプチドを含む、癌を治療または予防するための医薬組成物、
(5)有効量の(4)記載の医薬組成物をHLA−A*3303陽性対象に投与することを特徴とする、癌を治療または予防するための方法、
(6)(4)記載の医薬組成物を製造するための(1)記載のペプチドの使用、
(7)(1)記載のペプチドをコードするポリヌクレオチド、
(8)(7)記載のポリヌクレオチドを含む発現ベクター、
(9)(7)記載のポリヌクレオチドまたは(8)記載のベクターを含む、癌を治療または予防するための医薬組成物、
(10)有効量の(9)記載の医薬組成物をHLA−A*3303陽性対象に投与することを特徴とする、癌を治療または予防するための方法、
(11)(9)記載の医薬組成物を製造するための(7)記載のポリヌクレオチドまたは(8)記載のベクターの使用、
(12)(1)記載のペプチドにより誘導される、WT1特異的CTL、
(13)末梢血単核球を(1)記載のペプチドの存在下で培養し、該末梢血単核球からWT1特異的CTLを誘導することを特徴とする、WT1特異的CTLの誘導方法、
(14)(1)記載のペプチドを必須構成成分として含む、WT1特異的CTLを誘導するためのキット、
(15)(1)記載のペプチドにより誘導される、WT1ペプチドを提示する抗原提示細胞、
(16)未熟抗原提示細胞を(1)記載のペプチドの存在下で培養し、該未熟抗原提示細胞からWT1ペプチドを提示する抗原提示細胞を誘導することを特徴とする、WT1ペプチドを提示する抗原提示細胞の誘導方法、
(17)(1)記載のペプチドを必須構成成分として含む、WT1ペプチドを提示する抗原提示細胞を誘導するためのキット、
(18)(12)記載のCTLまたは(15)記載の抗原提示細胞を用いることを特徴とする、癌の診断方法、
(19)HLA−A*3303陽性対象におけるWT1特異的CTLの存在または量を決定する方法であって、
(a)WT1ペプチドとHLA−A*3303分子との複合体を該対象由来試料と反応させ;次に、
(b)該試料に含まれる該複合体を認識するCTLの存在または量を調べる、
工程を含む方法、
(20)複合体がテトラマーの形態である、(19)記載の方法、
を提供するものである。
(a)WT1ペプチドとHLA−A*3303分子との複合体を該対象由来試料と反応させ;次に、
(b)該試料に含まれる該複合体を認識するCTLの存在または量を調べる、
工程を含む方法に関するものである。対象由来試料は、リンパ球が含まれている可能性があればいずれのものであってもよく、例えば、血液、リンパ液などの体液、組織などが挙げられる。WT1ペプチドとHLA−A*3303分子との複合体は、例えば、ビオチンストレプトアビジン法などの当業者に既知の方法を用いて、例えば、テトラマー、ペンタマーなどの形態にされていてもよい。かかる複合体を認識するCTLの存在または量は、当業者に既知の方法により測定することができる。本発明のこの態様において、上記複合体は標識されたものであってもよい。標識としては、蛍光標識、放射性標識などの公知のものを使用することができる。標識することで、CTLの存在または量の決定が容易かつ迅速になる。本発明のこの態様の方法を用いて、癌の診断、予後診断などが可能になる。
(a)試料と複合体を反応させ、
(b)該試料中に含まれる該複合体を認識するCTLを得る、
工程を含む方法に関するものである。WT1ペプチドとHLA−A*3303分子との複合体については上述の通りである。試料は、リンパ球が含まれている可能性があればいずれのものであってもよく、例えば、血液などの対象由来試料、細胞培養液などが挙げられる。複合体を認識するCTLの取得は、例えば、FACS、MACSなど当業者に既知の方法を用いて行うことができる。得られたWT1特異的CTLを培養し、種々の癌の治療または予防に用いることも可能になる。
NetMHC2.0プログラム(Technical University of Denmark)を用いて、WT1タンパク質(配列番号:1)由来のペプチドから、HLA−A*3303適合アンカーモチーフ(N末端より2番目のアミノ酸がAla、Ile、Leu、Val、Phe、Tyr、Ser、またはAspであり、C末端がArgである)を有する9個のアミノ酸からなる親水性ペプチドであって、HLA−A*3303分子に対する結合親和性が高いと推測されるペプチドWT1337、WT1364、WT1367およびWT1409を選択した。これらのペプチドのアミノ酸配列、HLA−A*3303分子に対する結合親和性を表1に示す。
HLA−A*3303陽性健常人ドナー(HLA−A*3303/0207)より採取した末梢血からFicoll-Hypaque gradient density centrifugation法により末梢血単核球(PBMC)を分離した。次に、PBMCを24ウェル細胞培養用プレートに10% FCS含有RPMI 1640培地中約1×107個の密度で播種し、B95−8細胞(EBウイルス産生細胞)の培養上清を添加して、37℃、5% CO2で約1ヶ月間培養した。EBウイルスにより形質転換された、B細胞系腫瘍細胞であるB−LCL細胞を得た。得られたB−LCL細胞がWT1遺伝子を発現していないことを確認した。B−LCL細胞を20μg/ml WT1337、WT1364、WT1367またはWT1409と共に2時間インキュベーションすることでパルスし、次に、放射線80Gyを照射させた。得られたB−LCL細胞(以下、WT1ペプチドでパルスしたB−LCL細胞という)を抗原提示細胞として以下の実験に用いた。
PBMC(HLA−A*3303/1101)3×106個を、24ウェル細胞培養用プレートにて20μg/ml WT1337、WT1364、WT1367またはWT1409を含む完全培地(45% RPMI、45% AMI−V培地、および10% ヒトAB血清)中、37℃、5% CO2で1週間培養し、応答細胞を得た。得られた応答細胞 2×106個を、同じWT1ペプチドでパルスしたB−LCL細胞 1×106個と完全培地中で1週間共培養した(1回目刺激)。PBMCをWT1ペプチドでパルスしたB−LCL細胞とさらに3回共培養し(2〜4回目刺激)、その際20IU/ml(最終濃度)IL−2を、次の条件;2回目刺激:刺激開始の3日後から1日置き計2回;3回目および4回目刺激:刺激開始の翌日から1日置き計3回添加した。得られた細胞を、Negative Selection Columns Gravity Feed Kit(StemSp)を用いてCD8陽性T細胞が約80%となるよう濃縮し、次に、WT1ペプチドでパルスしたB−LCL細胞と共培養した(5回目刺激)。刺激開始5日後のCD8陽性T細胞(CTL)を細胞傷害活性の測定のために用いた。
CTLの細胞傷害活性を51Cr遊離試験を用いて測定した。CTL細胞(以下、エフェクター細胞ともいう)を、あらかじめ51Crを取り込ませた標的細胞と1:1、5:1、または10:1の比率(E/T比)となるよう培地 200μlに調製し、96ウェル細胞培養用プレート中、37℃、5% CO2で4時間培養した。標的細胞として、CTL誘導に用いたWT1ペプチドと同じペプチドでパルスしたB−LCL細胞(BLCL−P)、およびWT1ペプチドをパルスしていないB−LCL細胞(BLCL−NP)を用いた。培養後、遠心して上清を回収し、液体シンチレーションカウンターを用いて、上清中に遊離した51Cr量を測定した。細胞傷害活性(%)を次の式:
(試料上清中の51Cr遊離量−自然発生51Cr遊離量)/(最大51Cr遊離量−自然発生51Cr遊離量)×100
(自然発生51Cr遊離量は、51Crを取り込ませた標的細胞のみを同様の条件で培養したときの51Cr遊離量であり、最大51Cr遊離量は、51Crを取り込ませた標的細胞を1% トリトンX−100を用いて全細胞を溶解させたときの51Cr遊離量である)
を用いて決定した。結果を図1〜4に示す。図中、縦軸は特異的溶解(%)を示し、横軸はE/T比を示す。また、BLCL−Pを実線、BLCL−NPを点線で示す。WT1337、WT1364、WT1367およびWT1409を用いて誘導されたCTLは、BLCL−NP細胞と比較して、WT1ペプチドをHLA−A*3303分子との複合体として提示しているBLCL−P細胞を特異的に傷害することが確認できた。以下で、WT1364、WT1367およびWT1409を用いて誘導されたCTLについてさらなる実験を行った。
WT1364、WT1367およびWT1409を用いて誘導されたCTLのWT1遺伝子発現腫瘍細胞TF−1細胞(HLA−A*3303陽性)に対する細胞傷害活性を上述の方法を用いて決定した。対照として、WT1遺伝子を発現しているが、HLA−A*3303陰性細胞であるK562細胞を用いた。結果を図5〜7に示す。図中、縦軸は特異的溶解(%)を示し、横軸はE/T比を示す。また、TF−1を実線、K562を点線で示す。WT1364、WT1367およびWT1409を用いて誘導されたCTLが、WT1遺伝子を内因性に発現している細胞に対しても傷害活性を有することが確認できた。
Claims (16)
- 下記アミノ酸配列:
Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)からなるペプチド。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドを含む、HLA−A*3303陽性対象における癌を治療または予防するための医薬組成物。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドの、HLA−A*3303陽性対象における癌を治療または予防するための医薬組成物の製造のための使用。 - 請求項1記載のペプチドをコードするポリヌクレオチド。
- 請求項4記載のポリヌクレオチドを含む発現ベクター。
- 下記(1)または(2)を含む、HLA−A*3303陽性対象における癌を治療または予防するための医薬組成物:
(1)
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドをコードするポリヌクレオチド
(2)(1)のポリヌクレオチドを含む発現ベクター。 - HLA−A*3303陽性対象における癌を治療または予防するための医薬組成物の製造のための、下記(1)または(2)の使用:
(1)
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドをコードするポリヌクレオチド
(2)(1)のポリヌクレオチドを含む発現ベクター。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドにより誘導される、WT1ペプチドとHLA−A * 3303分子との複合体を認識するCTL。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドの存在下で、HLA−A*3303陽性対象由来の末梢血単核球を培養し、該末梢血単核球からWT1特異的CTLを誘導することを特徴とする、WT1ペプチドとHLA−A * 3303分子との複合体を認識するCTLの誘導方法。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドを必須構成成分として含む、WT1ペプチドとHLA−A * 3303分子との複合体を認識するCTLを誘導するためのキット。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドにより誘導される、WT1ペプチドをHLA−A * 3303分子を介して提示する抗原提示細胞。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドの存在下で未熟抗原提示細胞を培養し、HLA−A*3303陽性対象由来の該未熟抗原提示細胞からWT1ペプチドをHLA−A * 3303分子を介して提示する抗原提示細胞を誘導することを特徴とする、WT1ペプチドをHLA−A * 3303分子を介して提示する抗原提示細胞の誘導方法。 - 下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドを必須構成成分として含む、WT1ペプチドをHLA−A * 3303分子を介して提示する抗原提示細胞を誘導するためのキット。 - 請求項8記載のCTLまたは請求項11記載の抗原提示細胞をHLA−A*3303陽性対象由来の試料とインキュベーションし、次いで、
該CTLまたは該抗原提示細胞の量を決定することを特徴とする、
癌の検査を補助する方法。 - HLA−A*3303陽性対象におけるWT1特異的CTLの存在または量を決定する方法であって、
(a)WT1ペプチドとHLA−A*3303分子との複合体をHLA−A*3303陽性対象由来試料と反応させ;次に、
(b)該試料に含まれる該複合体を認識するCTLの存在または量を調べる、
工程を含む方法であって、該WT1ペプチドが下記アミノ酸配列:
(a)Leu Ser His Leu Gln Met His Ser Arg(配列番号:2)、
(b)Phe Ser Arg Ser Asp Gln Leu Lys Arg(配列番号:3)、
(c)Ser Asp Gln Leu Lys Arg His Gln Arg(配列番号:4)、および
(d)Thr Ser Glu Lys Pro Phe Ser Cys Arg(配列番号:5)
からなる群より選択されるアミノ酸配列からなるペプチドである、方法。 - 複合体がテトラマーの形態である、請求項15記載の方法。
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PL (1) | PL1988163T3 (ja) |
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CN103298928B (zh) | 2010-10-05 | 2016-04-20 | 株式会社癌免疫研究所 | 用于激活辅助性t细胞的方法 |
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CN108676069A (zh) | 2012-01-13 | 2018-10-19 | 纪念斯隆凯特林癌症中心 | 免疫原性wt-1肽及其使用方法 |
CN104797711B (zh) | 2012-09-12 | 2018-09-21 | 株式会社癌免疫研究所 | 抗原特异性辅助性t细胞受体基因 |
EP2931304B1 (en) | 2012-12-13 | 2021-04-28 | The Trustees Of The University Of Pennsylvania | Wt1 vaccine |
KR102158225B1 (ko) | 2012-12-17 | 2020-09-21 | 오츠카 세이야쿠 가부시키가이샤 | 헬퍼 t세포의 활성화 방법 |
US10815273B2 (en) | 2013-01-15 | 2020-10-27 | Memorial Sloan Kettering Cancer Center | Immunogenic WT-1 peptides and methods of use thereof |
SI2945647T1 (sl) | 2013-01-15 | 2021-01-29 | Memorial Sloan Kettering Cancer Center | Imunogeni peptidi WT-1 in postopki za uporabo le-teh |
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EP2762154A3 (en) | 2013-02-05 | 2015-01-21 | Nitto Denko Corporation | Vaccine composition for transdermal administration |
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US10071051B2 (en) | 2013-02-05 | 2018-09-11 | Nitto Denko Corporation | WT1 peptide cancer vaccine composition for transdermal administration |
RU2687144C2 (ru) | 2013-02-05 | 2019-05-07 | Нитто Денко Корпорейшн | Композиция противораковой вакцины, содержащей пептид wt1, для трансдермального введения |
BR112017012381A2 (pt) | 2014-12-11 | 2018-06-19 | International Institute Of Cancer Immunology, Inc. | imunoterapia para doença angiogênica |
JP6723164B2 (ja) | 2014-12-25 | 2020-07-15 | 株式会社癌免疫研究所 | T細胞集団の改変方法 |
CN107530557A (zh) | 2015-03-20 | 2018-01-02 | 宾夕法尼亚大学理事会 | Isg15和其作为佐剂的用途 |
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