Receptor-interacting protein kinase 2 (RIPK2) and nucleotide-binding oligomerization domain (NOD) cell signaling inhibitors based on a 3,5-diphenyl-2-aminopyridine scaffold
作者:Chalada Suebsuwong、Bing Dai、Daniel M. Pinkas、Anantha Lakshmi Duddupudi、Li Li、Joshua C. Bufton、Lisa Schlicher、Mads Gyrd-Hansen、Ming Hu、Alex N. Bullock、Alexei Degterev、Gregory D. Cuny
DOI:10.1016/j.ejmech.2020.112417
日期:2020.8
kinase 2 (RIPK2) is a key mediator of nucleotide-binding oligomerization domain (NOD) cell signaling that has been implicated in various chronic inflammatory conditions. A new class of RIPK2 kinase/NOD signaling inhibitors based on a 3,5-diphenyl-2-aminopyridine scaffold was developed. Several co-crystal structures of RIPK2•inhibitor complexes were analyzed to provide insights into inhibitor selectivity
受体相互作用蛋白激酶2(RIPK2)是核苷酸结合寡聚域(NOD)细胞信号传导的关键介体,已参与多种慢性炎症性疾病。基于3,5-二苯基-2-氨基吡啶骨架的新型RIPK2激酶/ NOD信号抑制剂被开发出来。分析了RIPK2•抑制剂复合物的几种共晶体结构,以了解抑制剂的选择性与结构相关的激活素受体样激酶2(ALK2)的关系,表明抑制剂位于RIPK2的疏水结合口袋中的位置更深,扰乱了DFG的方向主题。此外,结构-活性关系研究表明,除了分别通过2-氨基吡啶和3-苯基磺酰胺固定在铰链和DFG上,要实现有效的NOD细胞信号抑制,必须适当地占用网守和由3-苯基磺酰胺的4和5位上的取代基提供的αC-螺旋之间的区域。例如,化合物18t(例如CSLP37)在HEKBlue分析中显示出有效的生化RIPK2激酶抑制作用(IC 50 = 16±5 nM),相对于ALK2的选择性> 20倍和有效的NOD细胞信号传导抑制(IC