Synthesis and biological evaluation of bifendate–chalcone hybrids as a new class of potential P-glycoprotein inhibitors
作者:Xiaoke Gu、Zhiguang Ren、Xiaobo Tang、Hui Peng、Yuanfang Ma、Yisheng Lai、Sixun Peng、Yihua Zhang
DOI:10.1016/j.bmc.2012.02.050
日期:2012.4
cancer chemotherapy. To find novel effective P-gp inhibitors, a series of bifendate–chalcone hybrids were synthesized and evaluated. Among them, the most active compound 8g had little intrinsic cytotoxicity (IC50 > 200 μM), and could increase accumulation of Rhodamine 123 in K562/A02 cells more potently than bifendate and verapamil (VRP) by inhibiting P-gp efflux function. And 8g displayed potent chemo-sensitizing
P-糖蛋白(P-gp)的过表达是成功进行癌症化疗的主要问题之一。为了找到新型有效的P-gp抑制剂,合成并评估了一系列联苯双酯-查尔酮杂化物。其中,活性最高的化合物8g几乎没有内在的细胞毒性(IC 50 > 200μM),并且通过抑制P-gp外排功能,比联苯菊酯和维拉帕米(VRP)更有效地增加了罗丹明123在K562 / A02细胞中的蓄积。和8克显示强效的化学增敏效果和持续了长得多的时间(> 24小时)与VRP(<6小时)进行比较。另外,与VRP不同,8g对P-gp ATPase活性没有刺激,表明它不是P-gp底物。因此,8g 可能代表开发用于癌症化疗的MDR逆转剂的有希望的领先者。