From On-Target to Off-Target Activity: Identification and Optimisation of<i>Trypanosoma brucei</i>GSK3 Inhibitors and Their Characterisation as Anti-<i>Trypanosoma brucei</i>Drug Discovery Lead Molecules
作者:Andrew Woodland、Raffaella Grimaldi、Torsten Luksch、Laura A. T. Cleghorn、Kayode K. Ojo、Wesley C. Van Voorhis、Ruth Brenk、Julie A. Frearson、Ian H. Gilbert、Paul G. Wyatt
DOI:10.1002/cmdc.201300072
日期:2013.7
Herein we report a screen of a focused kinase library against T. brucei GSK3. From this we identified a series of several highly ligand‐efficient TbGSK3 inhibitors. Following the hit validation process, we optimised a series of diaminothiazoles, identifying low‐nanomolar inhibitors of TbGSK3 that are potent in vitro inhibitors of T. brucei proliferation. We show that the TbGSK3 pharmacophore overlaps
非洲人类锥虫病 (HAT) 是一种危及生命的疾病,每年约有 30 000-40 000 例新病例。布氏锥虫蛋白激酶 GSK3 短 ( Tb GSK3) 是寄生虫生长和存活所必需的。在此,我们报告了针对布氏锥虫GSK3的聚焦激酶库的筛选。由此我们确定了一系列高配体效率的Tb GSK3 抑制剂。在命中验证过程之后,我们优化了一系列二氨基噻唑,鉴定了Tb GSK3 的低纳摩尔抑制剂,它们是布氏布鲁氏菌增殖的有效体外抑制剂。我们证明TbGSK3 药效团与一个或多个其他分子靶标的药效团重叠。