N-benzylpiperidinol derivatives as novel USP7 inhibitors: Structure–activity relationships and X-ray crystallographic studies
作者:Minglei Li、Shengjie Liu、Hui Chen、Xinyu Zhou、Jin Zhou、Shuxi Zhou、Haoliang Yuan、Qing-Long Xu、Jun Liu、Keguang Cheng、Hongbin Sun、Yue Wang、Caiping Chen、Xiaoan Wen
DOI:10.1016/j.ejmech.2020.112279
日期:2020.8
including MDM2 and DNMT1, and thus represents a potential anticancer target. Through comparative analysis of USP7 co-crystal structures in complex with the reported piperidinol inhibitors, we noticed that the USP7 Phe409 sub-site might have good adaptability to the ligands. Based on this observation, 55 N-aromatic and N-benzyl piperidinol derivatives were designed, synthesized and biologically evaluated
USP7作为一种去泛素酶,在调节某些癌蛋白(包括MDM2和DNMT1)的稳定性中起着重要作用,因此代表了潜在的抗癌靶标。通过对USP7共晶体结构与已报告的哌啶醇抑制剂的复合物进行比较分析,我们注意到USP7 Phe409亚位点可能对配体具有良好的适应性。基于此观察结果,设计,合成和生物学评估了55种N-芳族和N-苄基哌啶醇衍生物,其中化合物L55被鉴定为高度选择性和有效的USP7抑制剂(IC 50 = 40.8 nM,K D = 78.3 nM)。 。X射线晶体学研究表明L55与USP7结合的新姿势与先前报道的抑制剂大不相同。细胞分析的结果表明,L55对LNCaP(IC 50 = 29.6 nM)和RS4具有很强的抗肿瘤活性。11个(IC 50 = 41.6 nM)细胞,可能是通过诱导细胞死亡并限制G0 / G1和S期。此外,L55剂量依赖性地降低了MDM2和DNMT1的蛋白质水平