counterpart 1. The ornithine decarboxylase and topoisomerase II inhibition experiments indicated that ODC and TOPO II were potential, but not unique targets of these conjugates. Furthermore, the in vivo antitumor activities illustrated that the representative conjugate 2f and the homospermidine analogue 1 evidently inhibited the tumor growth and significantly increased the survival time of mice-bearing
制备了一系列不对称取代的
多胺衍
生物,并研究了它们在小鼠白血病L1210,
黑色素瘤B16和HeLa细胞中的细胞毒性。体外细胞毒性表明,这些缀合物可以识别
多胺转运蛋白,并且与未取代的对应物相比,即使引入末端烷基导致细胞毒性降低,N-乙基修饰的高
精胺部分也可能作为高
精胺成为另一种有效载体。
鸟氨酸脱羧酶和拓扑异构酶II抑制实验表明ODC和TOPO II是潜在的,但不是这些结合物的唯一靶标。此外,