Structure-Based Design, Synthesis, and Biological Evaluation of New Triazolo[1,5-<i>a</i>]Pyrimidine Derivatives as Highly Potent and Orally Active ABCB1 Modulators
作者:Shuai Wang、Sai-Qi Wang、Qiu-Xu Teng、Linlin Yang、Zi-Ning Lei、Xiao-Han Yuan、Jun-Feng Huo、Xiao-Bing Chen、Mengru Wang、Bin Yu、Zhe-Sheng Chen、Hong-Min Liu
DOI:10.1021/acs.jmedchem.0c01741
日期:2020.12.24
ABCB1 is a promising therapeutic target for overcoming multidrug resistance (MDR). In this work, we reported the structure-based design of triazolo[1,5-a]pyrimidines as new ABCB1 modulators, of which WS-691 significantly increased sensitization of ABCB1-overexpressed SW620/Ad300 cells to paclitaxel (PTX) (IC50 = 22.02 nM). Mechanistic studies indicated that WS-691 significantly increased the intracellular
ABCB1是克服多药耐药性(MDR)的有希望的治疗靶标。在这项工作中,我们报道了作为新的ABCB1调节剂的三唑并[1,5- a ]嘧啶的结构设计,其中WS-691显着提高了ABCB1过表达的SW620 / Ad300细胞对紫杉醇(PTX)的敏感性(IC 50 = 22.02 nM)。机理研究表明,WS-691通过抑制ABCB1的外排功能,显着增加PTX和[ 3 H] -PTX的细胞内浓度,同时降低SW620 / Ad300细胞中[ 3 H] -PTX的外排。细胞热位移分析表明,WS-691可通过直接结合ABCB1来稳定ABCB1。WS-691可以刺激ABCB1 ATPase的活性,但对CYP3A4几乎没有抑制活性。重要的是,WS-691在体内没有观察到毒性的情况下提高了SW620 / Ad300细胞对PTX的敏感性。总体而言,WS-691是一种高效且口服的ABCB1调节剂,能够克服MDR。三唑并[1,5-