Design, synthesis, biological evaluation and structure-activity relationship study of quinazolin-4(3H)-one derivatives as novel USP7 inhibitors
作者:Peng Li、Ying Liu、Hua Yang、Hong-Min Liu
DOI:10.1016/j.ejmech.2021.113291
日期:2021.4
p53-MDM2-USP7 pathway is well understood. USP7 is emerging as a promising target for cancer therapy. However, there are limited reports on USP7 inhibitors. Here we report design, synthesis and biological evaluation of novel quinazolin-4(3H)-one derivatives as potent USP7 inhibitors. Our results indicated that the compounds C9 and C19 exhibited the greatest potency against the USP7 catalytic domain, with IC50 values
最近的研究表明,去泛素酶USP7的异常表达通过多种细胞途径诱导肿瘤发生,特别是p53-MDM2-USP7途径已广为人知。USP7正在成为癌症治疗的有希望的靶标。但是,关于USP7抑制剂的报道很少。在这里,我们报告作为有效的USP7抑制剂的新型喹唑啉-4(3 H)-一衍生物的设计,合成和生物学评估。我们的结果表明,化合物C9和C19对USP7催化结构域表现出最大的效力,IC 50值分别为4.86μM和1.537μM。Ub-AMC分析进一步证实了C9的IC 50值为5.048μMC19为0.595μM。MTT分析表明,胃癌MGC-803细胞比BGC-823细胞对这些化合物更敏感。流式细胞仪分析表明,C9限制了癌细胞在G0 / G1和S期的生长,并抑制了MGC-803细胞的增殖和克隆形成。进一步的生化实验表明,C9以剂量依赖的方式降低了MDM2蛋白水平,并增加了肿瘤抑制因子p53和p21的水平。