Discovery and Mechanistic Study of Tailor-Made Quinoline Derivatives as Topoisomerase 1 Poison with Potent Anticancer Activity
作者:Biswajit Kundu、Subhendu K. Das、Srijita Paul Chowdhuri、Sourav Pal、Dipayan Sarkar、Arijit Ghosh、Ayan Mukherjee、Debomita Bhattacharya、Benu Brata Das、Arindam Talukdar
DOI:10.1021/acs.jmedchem.8b01938
日期:2019.4.11
quinoline-based novel class of topoisomerase 1 (Top1) inhibitors and establish that compound 28 ( N-(3-(1 H-imidazol-1-yl)propyl)-6-(4-methoxyphenyl)-3-(1,3,4-oxadiazol-2-yl)quinolin-4-amine) exhibits the highest potency in inhibiting human Top1 activity with an IC50 value of 29 ± 0.04 nM. Compound 28 traps Top1-DNA cleavage complexes (Top1ccs) both in the in vitro cleavage assays and in live cells. Point mutation
为了克服喜树碱(CPT)的化学局限性,我们报告了基于喹啉类新型拓扑异构酶1(Top1)抑制剂的设计,合成和验证,并建立了化合物28(N-(3-(1 H-imidazol-1 -基)丙基)-6-(4-甲氧基苯基)-3-(1,3,4-恶二唑-2-基)喹啉-4-胺)在抑制人Top1活性方面表现出最高的效力,IC50值为29 ±0.04 nM。化合物28在体外裂解试验和活细胞中均捕获Top1-DNA裂解复合物(Top1ccs)。Top1-N722S的点突变未能捕获化合物28诱导的Top1cc,因为它无法与化合物28形成氢键。与CPT不同,化合物28显示出优异的血浆血清稳定性,并且不是P-糖蛋白1(渗透性糖蛋白)的底物)提高其潜在的抗癌活性。最后,