申请人:Johannes Ludger
公开号:US20110152252A1
公开(公告)日:2011-06-23
The present invention relates to the use of a Shiga toxin B-subunit moiety as carrier for therapeutic agents, for example, anti-cancer agents such as anti-cancer agents that require intracellular uptake to exert their anti-cancer effects. In particular, the present invention provides conjugates comprising a Shiga toxin moiety covalently linked to an anti-cancer agent through a self-immolative spacer, and methods of using such conjugates to increase cellular uptake and/or specificity for cancer cells of the anti-cancer drug. Also provided are methods of treatment involving administration of such conjugates, and pharmaceutical compositions and kits useful for carrying out such methods of treatment.
本发明涉及使用志贺毒素B亚基部分作为治疗剂如抗癌剂的载体,例如,需要胞内摄取以发挥其抗癌效果的抗癌剂。尤其地,本发明提供了一种偶联物,该偶联物包括通过自焚间隔物与抗癌剂共价连接的志贺毒素部分,以及使用这种偶联物来增加抗癌药物的细胞摄取和/或对癌细胞的特异性的方法。还提供了涉及施用这种偶联物的治疗方法,以及用于执行这种治疗方法的药物组合物和试剂盒。