Synthesis and biological evaluation of (3/4-(pyrimidin-2-ylamino)benzoyl)-based hydrazine-1-carboxamide/carbothioamide derivatives as novel RXRα antagonists
作者:Jingbo Qin、Jie Liu、Chunxiao Wu、Jianwen Xu、Bowen Tang、Kaiqiang Guo、Xiaohui Chen、Weihao Liu、Tong Wu、Hu Zhou、Meijuan Fang、Zhen Wu
DOI:10.1080/14756366.2020.1740692
日期:2020.1.1
the expression and biological function of retinoid X receptor alpha (RXRα) have a key role in the development of cancer. Potential modulators of RXRα as anticancer agents are explored in growing numbers of studies. A series of (4/3-(pyrimidin-2-ylamino)benzoyl)hydrazine-1-carboxamide/carbothioamide derivatives are synthesised and evaluated for anticancer activity as RXRα antagonists in this study. Among
类维生素A X受体α(RXRα)的表达和生物学功能异常改变在癌症的发展中具有关键作用。越来越多的研究探索了RXRα作为抗癌剂的潜在调节剂。合成了一系列(4 / 3-(嘧啶-2-基氨基)苯甲酰基)肼-1-羧酰胺/碳硫酰胺衍生物,并在本研究中评估了其作为RXRα拮抗剂的抗癌活性。在所有合成的化合物中,6A均显示出强大的拮抗剂活性(半数最大有效浓度(EC50)= 1.68±0.22 µM),对人癌细胞HepG2和A549细胞的强抗增殖活性(50%的细胞存活率(IC50)抑制) <10 µM),并且在正常细胞(如LO2和MRC-5细胞)中具有低细胞毒性(IC50值> 100 µM)。进一步的生物测定表明,6A以剂量依赖性方式抑制9-cis-RA诱导的活性,并以亚微摩尔亲和力(Kd = 1.20×10-7 M)选择性结合RXRα-=LΒD。6A诱导时间和剂量依赖性的多聚ADP-核糖聚合酶裂解,并