Development of Selective Clk1 and -4 Inhibitors for Cellular Depletion of Cancer-Relevant Proteins
作者:Ahmed K. ElHady、Mohammad Abdel-Halim、Ashraf H. Abadi、Matthias Engel
DOI:10.1021/acs.jmedchem.6b01915
日期:2017.7.13
Clk1 inhibitory activity. Introduction of a m-fluorine in the benzyl moiety eventually led to the discovery of compound 21b, a potent inhibitor of Clk1 and -4 (IC50 = 7 and 2.3 nM, respectively), exhibiting an unprecedented selectivity over Dyrk1A. 21b triggered the depletion of EGFR, HDAC1, and p70S6 kinase from the cancer cells, with potencies in line with the measured GI50 values. In contrast, the cellular
在癌细胞中,Clk家族的激酶控制着全长功能性mRNA的供应,该功能性mRNA编码了多种对于细胞生长和存活至关重要的蛋白质。因此,抑制Clks可能成为一种新的抗癌策略,导致营业额后选择性消耗与癌症相关的蛋白质。在Weinreb酰胺命中化合物的基础上,我们设计并合成了多种多样的甲氧基苯并噻吩-2-羧酰胺,其中N-苄基衍生物显示出增强的Clk1抑制活性。一个的引入米在苄基部分-氟最终导致化合物的发现21B,CLK1的有效抑制剂和-4(IC 50 = 7和2.3纳米,分别地),表现出超过DYRK1A前所未有的选择性。21b触发了癌细胞中EGFR,HDAC1和p70S6激酶的消耗,其效力与所测得的GI 50值一致。相反,仅微弱地抑制Clk1的同源物21a的细胞作用显着降低。