Development and Characterization of Type I, Type II, and Type III LIM-Kinase Chemical Probes
作者:Thomas Hanke、Sebastian Mathea、Julia Woortman、Eidarus Salah、Benedict-Tilman Berger、Anthony Tumber、Risa Kashima、Akiko Hata、Bernhard Kuster、Susanne Müller、Stefan Knapp
DOI:10.1021/acs.jmedchem.2c01106
日期:2022.10.13
LIMKs has been linked to the development of diverse diseases, including cancers and cognitive disabilities, but well-characterized inhibitors known as chemical probes are still lacking. Here, we report the characterization of three highly selective LIMK1/2 inhibitors covering all canonical binding modes (type I/II/III) and the structure-based design of the type II/III inhibitors. Characterization of these
LIMK 是肌动蛋白和微管动力学的重要调节剂,它们在许多细胞过程中发挥着重要作用。LIMKs 的放松管制与多种疾病的发展有关,包括癌症和认知障碍,但仍然缺乏被称为化学探针的充分表征的抑制剂。在这里,我们报告了三种高选择性 LIMK1/2 抑制剂的表征,涵盖所有典型结合模式(I/II/III 型)和 II/III 型抑制剂的基于结构的设计。这些化学探针的表征表明对 LIMK1/2 和所有抑制剂1(LIMKi3;I 型)、48(TH470;II 型)和15(TH257 )具有低纳摩尔亲和力; III 型)在全面的 scanMAX 激酶选择性面板中显示出出色的选择性。磷酸化蛋白质组学显示,与变构抑制剂相比,I 型和 II 型抑制剂之间存在显着差异15。在脆弱 X 染色体的神经突长出模型等表型分析中,15显示出有前途的活性,表明变构 LIMK 抑制剂可用于治疗这种孤儿病。