The present invention concerns antibody-conjugate having general structure (2): AB–[(L 6 )–Z–(L 1) n –(L 2 ) o –(L 3 ) p –(L 4 ) q –D} xx ] yy (2) wherein AB is an antibody capable of targeting Trop-2-expressing tumours and D is selected from the group consisting of taxanes, anthracyclines, camptothecins, epothilones, mytomycins, combretastatins, vinca alkaloids, maytansinoids, enediynes such as calicheamicins, duocarmycins, tubulysins, amatoxins, bleomycins, dolastatins and auristatins, pyrrolobenzodiazepine dimers, indolinobenzodiazepine dimers, radioisotopes, therapeutic proteins and peptides (or fragments thereof), kinase inhibitors, MEK inhibitors, KSP inhibitors, and analogues or prodrugs thereof. These antibody-conjugates exhibit an improved therapeutic index. The invention further concerns a process for preparing the antibody-conjugate according to the invention, a method for targeting Trop-2-expressing cells, medical uses of the antibody-conjugates according to the invention.
本发明涉及具有通用结构(2)的
抗体偶联物:AB–[(L 6 )–Z–(L 1) n –(L 2 ) o –(L 3 ) p –(L 4 ) q –D} xx ] yy (2) 其中 AB 是一种能够靶向表达 Trop-2 的肿瘤的
抗体,D 是从包括
紫杉烷类、
蒽环类、
喜树碱类、epothilones、mytomycins、combretastatins、长春花
生物碱、maytansinoids、enediynes(如calicheamicins、duocarmycins、tubulysins、amatoxins、bleomycins、dolastatins 和 auristatins)、
吡咯并
苯二
氮卓二聚体、
吲哚并
苯二
氮卓二聚体、放射性同位素、治疗性蛋白质和肽(或其片段)、激酶
抑制剂、
MEK 抑制剂、K
SP 抑制剂以及它们的类似物或前药中选择的。这些
抗体偶联物展现出改进的治疗指数。本发明还涉及根据本发明制备
抗体偶联物的过程,一种靶向表达 Trop-2 的细胞的方法,以及根据本发明的
抗体偶联物的医疗用途。