AMATOXIN-ARMED THERAPEUTIC CELL SURFACE BINDING COMPONENTS DESIGNED FOR TUMOUR THERAPY
申请人:Deutsches Krebsforschungszentrum
公开号:US20160089450A1
公开(公告)日:2016-03-31
The invention relates to tumour therapy. In one aspect, the present invention relates to conjugates of a toxin and a target-binding moiety, e.g. an antibody, which are useful in the treatment of cancer. In particular, the toxin is an amatoxin, and the target-binding moiety is preferably directed against tumour-associated antigens. In particular, the amatoxin is conjugated to the antibody by linker moieties. In particular the linker moieties are covalently bound to functional groups located in positions of the amatoxin proved as preferred positions for the attachment of linkers with respect to optimum antitumor activity. In a further aspect the invention relates to pharmaceutical compositions comprising such target-binding moiety toxin conjugates and to the use of such target-binding moiety toxin conjugates for the preparation of such pharmaceutical compositions. The target-binding moiety toxin conjugates and pharmaceutical compositions of the invention are useful for the treatment of cancer.
本发明涉及肿瘤治疗。在一个方面,本发明涉及毒素和靶向结合基团(例如抗体)的共轭物,其在癌症治疗中有用。特别是,毒素是一种阿马毒素,而靶向结合基团最好是针对肿瘤相关抗原的。特别是,阿马毒素通过连接基团与抗体结合。特别是,连接基团是共价结合到阿马毒素中的位置的功能基团上的,这些位置被证明是连接剂与最佳抗肿瘤活性相关的首选位置。在另一个方面,本发明涉及包含这种靶向结合基团毒素共轭物的制药组合物,并且涉及使用这种靶向结合基团毒素共轭物制备这种制药组合物。本发明的靶向结合基团毒素共轭物和制药组合物可用于癌症治疗。