CN105008398A - 抗her2抗体及其缀合物 - Google Patents
抗her2抗体及其缀合物 Download PDFInfo
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- CN105008398A CN105008398A CN201480006648.8A CN201480006648A CN105008398A CN 105008398 A CN105008398 A CN 105008398A CN 201480006648 A CN201480006648 A CN 201480006648A CN 105008398 A CN105008398 A CN 105008398A
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- her2
- functional fragment
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- polynucleotides
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Abstract
Description
缩写 | 全称 | 类别/作用机制 |
MMAE | Monomethyl auristatin E | 微管单体蛋白聚合抑制剂<sup>[12]</sup> |
MMAE衍生物 | ||
MMAF | Monomethyl auristatin F | 微管单体蛋白聚合抑制剂<sup>[12]</sup> |
MMAF衍生物 | ||
DM1 | Mertansine derivative M4 | 微管解聚(microtubule-depolymerizing)<sup>[15]</sup> |
DM4 | Mertansine derivative M4 | 微管解聚<sup>[15]</sup> |
Duocarmycine | Duocarmycine | DNA结合物<sup>[13]</sup> |
Calicheamicin | Calicheamicin | DNA小沟结合物<sup>[13]</sup> |
PBDA | pyrrolobenzodiazepines | DNA结合物<sup>[13]</sup> |
Doxorubicin | Doxorubicin | 拓扑异构酶抑制剂<sup>[13]</sup> |
Vinca Alkaloids | Vinca Alkaloids | <sup>[13]</sup> |
Metrotrexate | Metrotrexate | <sup>[13]</sup> |
Vinblastine | Vinblastine | 微管解聚<sup>[13]</sup> |
Daunorubicin | Daunorubicin | <sup>[13]</sup> |
重链(VH) | 轻链(VL) | |
CDR1 | DYYIH(SEQ ID NO.1) | KASQDVGTAVA(SEQ ID NO.4) |
CDR2 | RVNPDHGDSYYNQKFKD(SEQ ID NO.2) | WASIRHT(SEQ ID NO.5) |
CDR3 | ARNYLFDHW(SEQ ID NO.3) | HQFATYT(SEQ IDNO.6) |
样品 | 平均亲和常数 |
Herceptin | 97pM |
cRC48 | 77pM |
RC48 | 44pM |
样品 | 结合亲和力Kd |
Herceptin | 10nM |
cRC48 | 5nM |
RC48 | 4nM |
Claims (13)
- 能够特异性结合HER2的抗体或其功能性片段,其中所述抗体包含重链和轻链,其中(i)所述重链包含三个CDR区,其中所述CDR区中至少一个的氨基酸序列具有如SEQ ID NO:1、2或3所示的氨基酸序列或者与其具有至少80%序列同一性的序列;和(ii)所述轻链包含三个CDR区,其中所述CDR区中至少一个的氨基酸序列具有如SEQ ID NO:4、5或6所示的氨基酸序列或者与其具有至少80%序列同一性的序列。
- 根据权利要求1所述的抗体或其功能性片段,其中所述重链包含三个CDR区,其中所述CDR区的氨基酸序列分别具有如SEQ ID NO:1、2和3所示的氨基酸序列;所述轻链包含三个CDR区,其中所述CDR区的氨基酸序列分别具有如SEQ ID NO:4、5和6所示的氨基酸序列。
- 根据前述任一权利要求所述的抗体或其功能性片段,其中所述抗体衍生自在2013年08月22日以保藏编号CGMCC No.8102保藏于中国微生物菌种保藏管理委员会普通微生物中心的杂交瘤所分泌的抗体。
- 根据前述任一权利要求所述的抗体或其功能性片段,其中所述抗体是人源化抗体,优选地所述抗体是在2013年11月06日以保藏编号CCTCC C2013170保藏于中国典型培养物保藏中心的CHO细胞所分泌的抗体。
- 分离的多核苷酸,其编码根据前述权利要求任一项所述的抗体或其功能性片段。
- 分离的多核苷酸的组合,其包括:编码根据权利要求1-4中任一项所述抗体或其功能性片段之轻链的多核苷酸和编码根据权利要求1-4中任一项所述抗体或其功能性片段之重链的多核苷酸。
- 表达载体,其包含根据权利要求5的多核苷酸或者根据权利 要求6的多核苷酸的组合,所述多核苷酸与允许其所编码的多肽在宿主细胞或无细胞表达系统中表达的调节序列有效连接。
- 缀合物,其包含与一个或更多个治疗剂偶联的权利要求1至4中任一项所述的抗体或其功能性片段,优选地所述治疗剂选自细胞毒性药物、免疫增强剂和放射性同位素,更优选地所述治疗剂选自海兔毒素肽及其衍生物,最优选地所述治疗剂选自MMAE和MMAF。
- 根据权利要求8的缀合物,其中所述治疗剂与所述抗体或其功能性片段通过接头偶联,优选地,所述接头与抗体通过巯基连接,更优选地所述接头选自mc-vc-pAB和mc。
- 具有通式Ab-(L-U)n的缀合物,其中Ab表示根据权利要求1至4中任一项所述的抗体或其功能性片段,L表示接头(例如mc-vc-pAB或mc),U表示治疗剂(优选地所述治疗剂选自细胞毒性药物、免疫增强剂和放射性同位素,更优选地所述治疗剂选自海兔毒素肽及其衍生物,最优选地所述治疗剂选自MMAE和MMAF),以及n为1至8的整数。
- 药物组合物,其包含权利要求1至4中任一项的抗体或其功能性片段和/或权利要求8至10中任一项的缀合物,以及可药用载体。
- 权利要求1至4中任一项的抗体或其功能性片段、权利要求5的多核苷酸、权利要求6的多核苷酸组合、权利要求7的表达载体、权利要求8至10中任一项的缀合物或权利要求11的药物组合物在制备用于治疗或预防癌症的药物中的用途。
- 根据权利要求12的用途,其中所述癌症为HER2阳性癌症,优选乳腺癌或卵巢癌或胃癌,更优选拉帕替尼和/或赫赛汀耐药的乳腺癌或卵巢癌或胃癌。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020125546A1 (zh) | 2018-12-17 | 2020-06-25 | 荣昌生物制药(烟台)有限公司 | 一种用于抗体药物偶联物的连接子及其应用 |
WO2020177570A1 (zh) | 2019-03-01 | 2020-09-10 | 荣昌生物制药(烟台)股份有限公司 | 一种Her2伴随诊断免疫组化检测抗体及其应用 |
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WO2020192693A1 (zh) | 2019-03-26 | 2020-10-01 | 荣昌生物制药(烟台)股份有限公司 | 抗Her2抗体药物偶联物药物制剂 |
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CN111655295A (zh) * | 2018-08-29 | 2020-09-11 | 荣昌生物制药(烟台)股份有限公司 | 抗her2抗体药物偶联物在治疗尿路上皮癌中的用途 |
CN111655295B (zh) * | 2018-08-29 | 2024-05-28 | 荣昌生物制药(烟台)股份有限公司 | 抗her2抗体药物偶联物在治疗尿路上皮癌中的用途 |
WO2020125546A1 (zh) | 2018-12-17 | 2020-06-25 | 荣昌生物制药(烟台)有限公司 | 一种用于抗体药物偶联物的连接子及其应用 |
WO2020177570A1 (zh) | 2019-03-01 | 2020-09-10 | 荣昌生物制药(烟台)股份有限公司 | 一种Her2伴随诊断免疫组化检测抗体及其应用 |
WO2020192693A1 (zh) | 2019-03-26 | 2020-10-01 | 荣昌生物制药(烟台)股份有限公司 | 抗Her2抗体药物偶联物药物制剂 |
EP4316521A2 (en) | 2019-03-26 | 2024-02-07 | RemeGen Co., Ltd. | Anti-her2 antibody drug conjugate pharmaceutical preparation |
CN115990269A (zh) * | 2021-11-16 | 2023-04-21 | 启德医药科技(苏州)有限公司 | 依沙替康衍生物及其连接子-负载物和缀合物 |
CN115990269B (zh) * | 2021-11-16 | 2023-11-14 | 启德医药科技(苏州)有限公司 | 依沙替康衍生物及其连接子-负载物和缀合物 |
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