Simplified Derivatives of Tetrandrine as Potent and Specific P-gp Inhibitors to Reverse Multidrug Resistance in Cancer Chemotherapy
作者:Rong Zeng、Xiu-Ming Yang、Hong-Wei Li、Xue Li、Yu Guan、Tao Yu、Peng Yan、Wen Yuan、Sheng-Li Niu、Jing Gu、Ying-Chun Chen、Qin Ouyang
DOI:10.1021/acs.jmedchem.2c02061
日期:2023.3.23
Targeted inhibition of a drug efflux transporter P-glycoprotein (P-gp) is an important strategy to reverse multidrug resistance in cancer chemotherapy. In this study, a rationally structural simplification to natural tetrandrine was performed based on molecular dynamics simulation and fragment growth, leading to an easily prepared, novel, and simplified compound OY-101 with high reversal activity and
靶向抑制药物外排转运蛋白 P-糖蛋白 (P-gp) 是逆转癌症化疗中多药耐药性的重要策略。本研究基于分子动力学模拟和片段生长对天然粉防己碱进行了合理的结构简化,得到了一种易于制备、新颖且简化的化合物OY-101,具有高逆转活性和低细胞毒性。通过逆转活性测定、流式细胞术、平板克隆形成测定和药物协同分析证实其与长春新碱(VCR)对耐药细胞Eca109/VCR具有优异的协同抗癌作用(IC 50 = 9.9 nM,RF = 690) 。进一步的机制研究证实OY-101是一种特异性、高效的P-gp抑制剂。重要的是,OY-101增加了体内VCR 致敏性,但没有明显的毒性。总体而言,我们的研究结果可能为设计新型特异性 P-gp 抑制剂作为抗肿瘤化疗增敏剂提供替代策略。