Discovery of a potent, highly selective, and orally bioavailable inhibitor of CDK8 through a structure-based optimisation
作者:Mingfeng Yu、Yi Long、Yuchao Yang、Manjun Li、Theodosia Teo、Benjamin Noll、Stephen Philip、Shudong Wang
DOI:10.1016/j.ejmech.2021.113391
日期:2021.6
is viewed as a therapeutic target for the treatment of the disease. Accordingly, the search for small-molecule inhibitors of CDK8 is being intensified. Capitalising on our initial discovery of AU1-100, a potent CDK8 inhibitor yet with a limited degree of kinase selectivity, a structure-based optimisation was carried out, with a series of new multi-substituted pyridines rationally designed, chemically
CDK8 在多种类型的人类癌症中失调,被视为治疗该疾病的治疗靶点。因此,正在加紧寻找 CDK8 的小分子抑制剂。利用我们最初发现的 AU1-100,一种有效的 CDK8 抑制剂,但激酶选择性有限,我们进行了基于结构的优化,对一系列新的多取代吡啶进行了合理设计、化学制备和生物学评估。这种努力最终确定了42,这是一种更有效的 CDK8 抑制剂,具有优异的运动学选择性和口服生物利用度。42抗增殖作用的机制对 MV4-11 细胞进行了研究,表明该化合物可以阻止 G1 细胞周期并引发细胞凋亡。估计42的肝毒性和心脏毒性的风险较低。这些发现值得进一步研究42作为靶向癌症治疗剂。