Synthesis and biological evaluation of novel bifendate derivatives bearing 6,7-dihydro-dibenzo[c,e]azepine scaffold as potent P-glycoprotein inhibitors
作者:Xiaoke Gu、Zhiguang Ren、Xiaobo Tang、Hui Peng、Qing Zhao、Yisheng Lai、Sixun Peng、Yihua Zhang
DOI:10.1016/j.ejmech.2012.02.034
日期:2012.5
Overexpression of P-glycoprotein (P-gp) is one of the major problems in successful treatment of cancers. To find new P-gp inhibitors, a series of bifendate (DDB) derivatives bearing dibenzo[c,e]azepine scaffold were synthesized and evaluated. Compound 4i more potently reversed P-gp-mediated multidrug resistance (MDR) than DDB and verapamil (VRP) by blocking P-gp mediated drug efflux function and increasing
P-糖蛋白(P-gp)的过表达是成功治疗癌症的主要问题之一。为了找到新的P-gp抑制剂,合成并评估了一系列带有二苯并[ c,e ]氮杂骨架的联苯双酯(DDB)衍生物。化合物4i通过阻断P-gp介导的药物外流功能并增加K562 / A02 MDR细胞中的药物积累,比DDB和维拉帕米(VRP)更有效地逆转了P-gp介导的多药耐药性(MDR),并持续了更长的化学致敏作用( > 24小时)比VRP(<6小时)高。有趣的是,与VRP不同,4i对P-gp ATPase活性没有刺激,表明它不是P-gp的底物。鉴于4i 在体外具有较低的固有细胞毒性,这可能代表了在联合癌症化疗中开发针对P-gp介导的MDR的疗法的有希望的领先者。