HILDERBRAND, SCOTT A.,西得伯朗德 史考特 A,HUTCHINS, BENJAMIN M.,胡金斯 班杰明 M,胡金斯 班傑明 M,西得伯朗德 史考特 A,胡金斯 班杰明 M,胡金斯 班傑明 M
申请号:
TW106140599
公开号:
TW201822819A
申请日:
2017.11.22
申请国别(地区):
TW
年份:
2018
代理人:
摘要:
The invention relates to novel methods of preparing cell-binding agent-cytotoxic agent conjugates, wherein the cytotoxic agent is an imine-containing cytotoxic agent bearing a maleimide group. In some embodiments, the cell-binding agent (CBA) is covalently linked to the cytotoxic agent through an engineered Cys, such as an engineered Cys in the heavy chain CH3 domain, at a position corresponds to the EU/OU numbering position 442 (or C442) on an antibody CBA. The invention also provides conjugates prepared by the methods of the present invention, compositions and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the conjugates of the invention.本發明係關於製備細胞結合劑-細胞毒性劑結合物之新穎方法,其中該細胞毒性劑係帶有順丁烯二醯亞胺基團之含亞胺細胞毒性劑。在一些實施例中,該細胞結合劑(CBA)透過經工程改造Cys諸如重鏈CH3域中之經工程改造Cys、在對應於抗體CBA上之EU/OU編号442位(或C442)的位置處共價連接至該細胞毒性劑。本發明亦提供藉由本發明之該等方法製備之結合物、實用於使用本發明之該等結合物於哺乳動物中抑制異常細胞生長或治療增生性病症之組成物及方法。