Discovery of Tricyclic Indoles That Potently Inhibit Mcl-1 Using Fragment-Based Methods and Structure-Based Design
作者:Jason P. Burke、Zhiguo Bian、Subrata Shaw、Bin Zhao、Craig M. Goodwin、Johannes Belmar、Carrie F. Browning、Dominico Vigil、Anders Friberg、DeMarco V. Camper、Olivia W. Rossanese、Taekyu Lee、Edward T. Olejniczak、Stephen W. Fesik
DOI:10.1021/jm501984f
日期:2015.5.14
various chemotherapies. From an NMR-based screen of a large fragment library, several distinct chemical scaffolds that bind to Mcl-1 were discovered. Here, we describe the discovery of potent tricyclic 2-indole carboxylic acid inhibitors that exhibit single digit nanomolar binding affinity to Mcl-1 and greater than 1700-fold selectivity over Bcl-xL and greater than 100-fold selectivity over Bcl-2. X-ray
髓样细胞白血病-1 (Mcl-1) 是 Bcl-2 蛋白家族的抗凋亡成员,在许多癌症中过度表达和扩增。 Mcl-1的过度表达使癌细胞能够逃避凋亡,并有助于癌细胞对各种化疗的有效治疗产生抵抗力。通过基于 NMR 的大片段库筛选,发现了几种与 Mcl-1 结合的不同化学支架。在这里,我们描述了有效的三环 2-吲哚羧酸抑制剂的发现,该抑制剂对 Mcl-1 表现出个位数纳摩尔的结合亲和力,选择性比 Bcl-xL 高 1700 倍,选择性比 Bcl-2 高 100 倍。这些化合物与 Mcl-1 复合时的 X 射线结构提供了有关这些小分子如何与靶标结合的详细信息,可用于指导化合物优化。