Benzylidene thiazolidinediones: Synthesis, in vitro investigations of antiproliferative mechanisms and in vivo efficacy determination in combination with Imatinib
作者:Hardik Joshi、Vijay Patil、Kalpana Tilekar、Neha Upadhyay、Vikram Gota、C.S. Ramaa
DOI:10.1016/j.bmcl.2020.127561
日期:2020.12
up-regulated apoptosis markers, cleaved PARP1 and activated caspase 3, which could be a possible mechanism for the excellent antiproliferative effects exhibited by these compounds. In vitro combination studies of 3t and 3x with Imatinib found to potentiate the antitumor effects of Imatinib. Further in vivo efficacy in K562 xenografts, of 3t and 3x alone and in combination with Imatinib was found to be
噻唑烷二酮(TZD)由于其已被证实的抗糖尿病活性和令人鼓舞的抗癌药物发现而成为令人关注的支架。我们合成了亚苄基噻唑烷二酮衍生物,该衍生物在慢性髓样白血病细胞K562中表现出优异的抗增殖作用,活性最高的化合物3t和3x的GI 50值分别为0.9和0.23 µM。发现这两种化合物都以时间和剂量依赖性的方式阻止了K562细胞在G0 / G1期的生长。此外,western blot分析显示3t和3x还可抑制细胞增殖标志物,PCNA和Cyclin D1的表达,以及化合物3x上调凋亡标志物,裂解PARP1和激活的胱天蛋白酶3,这可能是优异的抗增殖作用的可能机制。这些化合物表现出的效果。3t和3x与伊马替尼的体外联合研究发现可增强伊马替尼的抗肿瘤作用。进一步体内与单独使用伊马替尼或经测试化合物处理的动物相比,单独使用3t和3x并与伊马替尼联合使用的K562异种移植物的疗效被证明是有前途的,远胜于对照组,