An Angle on MK2 Inhibition—Optimization and Evaluation of Prevention of Activation Inhibitors
作者:Ulf Hedström、Monica Norberg、Emma Evertsson、Sarah R. Lever、Magnus Munck af Rosenschöld、Hans Lönn、Peter Bold、Helena Käck、Pia Berntsson、Johanna Vinblad、Jianming Liu、Anette Welinder、Johan Karlsson、Arjan Snijder、Katerina Pardali、Ulf Andersson、Andrew M. Davis、Mickael Mogemark
DOI:10.1002/cmdc.201900303
日期:2019.10.4
further evaluated by protein immunoblotting, which showed that the optimized PoA MK2 compounds, despite their biochemical selectivity against MSK1 phosphorylation, behaved similarly to p38 inhibitors in cellular signaling. This study highlights the importance of selective tool compounds in untangling complex signaling pathways, and although 9 and 18 were not differentiated from p38α inhibitors in a cellular
丝裂原活化的蛋白激酶p38α途径已经成为治疗炎性疾病如类风湿性关节炎的有吸引力的靶标。虽然许多p38α抑制剂已被带到临床,但它们的功效和毒理学特性使其受到限制。启动了铅鉴定程序,以有针对性地预防有丝分裂原激活的蛋白激酶激活的蛋白激酶2(MK2)而不是有丝分裂原和应激激活的蛋白激酶1(MSK1)的激活(PoA),这两者都是p38α的直接下游底物,以改善直接p38α抑制作用的功效/安全性。从一系列吡唑酰胺PoA MK2抑制剂开始,在结构化学和合理设计的指导下,高选择性咪唑9(2-(3'-(2-氨基-2-氧代乙基)-[1,1'-联苯] -3-yl)-N-(5-(N,N-二甲基氨磺酰基)-2-甲基苯基)-1-丙基-1H-咪唑-5-羧酰胺)和可口服生物利用的咪唑18(3-甲基-N-(2-甲基-5-氨磺酰基苯基)-2-(o-发现甲苯基咪唑-4-羧酰胺)。通过蛋白免疫印迹进一步评估了PoA概念,该蛋白显示优化的PoA