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 highlyselective 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。
Discovery and initial development of a novel class of antibacterials: Inhibitors of Staphylococcus aureus transcription/translation
作者:Scott D. Larsen、Matthew R. Hester、J. Craig Ruble、Gregg M. Kamilar、Donna L. Romero、Brian Wakefield、Earline P. Melchior、Michael T. Sweeney、Keith R. Marotti
DOI:10.1016/j.bmcl.2006.09.044
日期:2006.12
The novel bacterial transcription/translation (TT) inhibitor 1 was identified through a combination of high throughput screening and exploratory medicinal chemistry. Initial optimization of the anthranilic acid moiety and sulfonamide amine diversity was accomplished via 1- and two-dimensional solution phase libraries, resulting in an improvement in the MIC of the lead from 64 to 8 mu g/mL (compound 4I). Subsequent modification of the central aromatic ring and further refinement of the sulfonamide amines required the development of a solid phase route on Wang resin. The resulting libraries generated a number of potent antibacterials with MICs of <= 1 mu g/mL (e.g., 10b, 12, and 13). During the course of this work, it became apparent that the antibacterial activity of the series is not fully correlated with TT inhibition, suggesting that at least one additional mechanism of action is operative. (c) 2006 Elsevier Ltd. All rights reserved.