Aurora Isoform Selectivity: Design and Synthesis of Imidazo[4,5-<i>b</i>]pyridine Derivatives as Highly Selective Inhibitors of Aurora-A Kinase in Cells
作者:Vassilios Bavetsias、Amir Faisal、Simon Crumpler、Nathan Brown、Magda Kosmopoulou、Amar Joshi、Butrus Atrash、Yolanda Pérez-Fuertes、Jessica A. Schmitt、Katherine J. Boxall、Rosemary Burke、Chongbo Sun、Sian Avery、Katherine Bush、Alan Henley、Florence I. Raynaud、Paul Workman、Richard Bayliss、Spiros Linardopoulos、Julian Blagg
DOI:10.1021/jm401115g
日期:2013.11.27
differences, crystal structures of ligand–Aurora protein interactions formed the basis of a design principle for imidazo[4,5-b]pyridine-derived Aurora-A-selective inhibitors. Guided by a computational modeling approach, appropriate C7-imidazo[4,5-b]pyridine derivatization led to the discovery of highly selective inhibitors, such as compound 28c, of Aurora-A over Aurora-B. In HCT116 human colon carcinoma cells
Aurora-A 在 ATP 结合口袋的三个位置(L215、T217 和 R220)与 Aurora-B/C 不同。利用这些差异,配体-Aurora 蛋白相互作用的晶体结构构成了咪唑并[4,5- b ] 吡啶衍生的 Aurora-A 选择性抑制剂的设计原则的基础。在计算建模方法的指导下,适当的 C7-咪唑并[4,5- b ] 吡啶衍生化导致发现了 Aurora-A 对 Aurora-B的高选择性抑制剂,例如化合物28c 。在 HCT116 人结肠癌细胞中,28c和40f抑制 Aurora-A L215R 和 R220K 突变体,IC 50值与 Aurora-A 野生型相似。然而,与 Aurora-A 野生型相比,Aurora-A T217E 突变体对28c和40f抑制的敏感性显着降低,这表明 T217 残基在控制观察到的对 Aurora-A 抑制的同种型选择性中起关键作用。这些化合物是有用的小分子化学工具,可进一步探索