Design, synthesis, and biological evaluation of novel 3-substituted imidazo[1,2- a ]pyridine and quinazolin-4(3H)-one derivatives as PI3Kα inhibitors
作者:Yan-Hua Fan、Wei Li、Dan-Dan Liu、Meng-Xuan Bai、Hong-Rui Song、Yong-Nan Xu、SangKook Lee、Zhi-Peng Zhou、Jian Wang、Huai-Wei Ding
DOI:10.1016/j.ejmech.2017.07.074
日期:2017.10
series compounds containing hydrophilic group in imidazo[1,2-a]pyridine and quinazolin-4(3H)-one were synthesized and their antiproliferative activities against five cancer cell lines, including HCT-116, SK-HEP-1, MDA-MB-231, SNU638 and A549, were evaluated. Compound 1i with most potent antiproliferative activity was selected for further biological evaluation. PI3K kinase assay showed that 1i has selectivity
磷脂酰肌醇3-激酶(PI3K)是细胞内信号通路的关键调节剂,被认为是癌症治疗方法开发中的有希望的靶标。在不同的PI3K亚型中,编码PI3Kp110α的PIK3CA基因在大多数人类癌症中经常发生突变并过表达。因此,抑制PI3Kα被认为是治疗癌症的有效方法。在这项研究中,合成了在咪唑并[1,2- a ]吡啶和喹唑啉-4(3H)-one中含有亲水基的两个系列化合物,它们对包括HCT-116,SK-HEP-5在内的五种癌细胞系具有抗增殖活性。参照图1,评估了MDA-MB-231,SNU638和A549。化合物1i选择具有最强抗增殖活性的化合物进行进一步的生物学评估。PI3K激酶测定法显示1i对PI3Kα具有选择性,与其他同工型不同。蛋白质印迹分析表明1i在降低磷酸化Akt的水平上比基于咪唑并吡啶的PI3Ka抑制剂HS-173更有效。所有这些结果表明1i是有效的PI3Kα抑制剂,可以被视为开发抗癌药物的潜在候选药物。