Synthesis, structure-activity relationship studies and biological characterization of new [1,2,4]triazolo[1,5-a]pyrimidine-based LSD1/KDM1A inhibitors
作者:Shuai Wang、Zhong-Rui Li、Feng-Zhi Suo、Xiao-Han Yuan、Bin Yu、Hong-Min Liu
DOI:10.1016/j.ejmech.2019.02.039
日期:2019.4
LSD1 has been recognized as a promising strategy for cancer therapy. To date, some small-molecule inhibitors are currently being investigated in clinical trials. Herein we report the design, synthesis and biochemical characterization of [1,2,4]triazolo[1,5-a]pyrimidine derivatives as new LSD1 inhibitors. Of these compounds, compound C26 inhibited LSD1 in a reversible manner (IC50 = 1.72 μM) and showed
组蛋白赖氨酸特异性脱甲基酶1(LSD1 / KDM1A)与癌症的发展有关,靶向LSD1已被认为是一种有前途的癌症治疗策略。迄今为止,一些小分子抑制剂目前正在临床试验中进行研究。在这里我们报告[1,2,4]三唑并[1,5- a ]嘧啶衍生物作为新型LSD1抑制剂的设计,合成和生化特性。在这些化合物中,化合物C26以可逆方式抑制LSD1(IC 50 = 1.72μM),并且相对于MAO-A / B具有对LSD1的选择性。另外,化合物C26显示出与LSD1的FAD竞争性结合。有趣的是,C26不会抑制辣根过氧化物酶(HRP)并淬灭H 2O 2,因此排除了C26抑制LSD1的原因是HRP抑制和H 2 O 2的消耗。在LSD1过表达的A549细胞中,化合物C26浓度依赖性地诱导H3K4me1 / me2和H3K9me2的积累,并显示细胞靶标与LSD1的结合。此外,化合物C26以浓度依赖性方式显着抑制