The present invention describes the design, synthesis and therapeutic use of a variety of novel inhibitors of polyamine transport. The main feature of this class of transport inhibitors is to incorporate a linker or side chain that prevents the uptake of polyamines and helps to conjugate polyamine analogs to form dimers with high inhibitory potency against polyamine uptake. These new compounds incorporate features that are designed to maximize their chemical and metabolic stability and their ability to bind to the polyamine transporter, and to minimize their toxicity by preventing their absorption by the cells. The purpose of such inhibitors is to prevent the uptake or salvaging of circulating polyamines by rapidly proliferating cells such as tumor cells, in order to potentiate the effect of therapeutic inhibitors of polyamine biosynthesis such as alpha-difluoromethylornithene.
本发明描述了设计、合成和治疗用途的多种新型聚胺转运
抑制剂。这类转运
抑制剂的主要特点是包含一个连接链或侧链,可以阻止聚胺的摄取,并有助于将聚
胺类似物结合成具有高抑制效力的二聚体,用于抑制聚胺的摄取。这些新化合物具有设计以最大化其
化学和代谢稳定性以及结合聚胺转运体的能力的特征,并通过防止被细胞吸收来最小化其毒性。这类
抑制剂的目的是防止快速增殖的细胞(如肿瘤细胞)摄取或回收循环中的聚胺,以增强聚胺
生物合成的治疗
抑制剂(如α-
二氟甲基鸟氨酸)的效果。