Discovery of 4-((N-(2-(dimethylamino)ethyl)acrylamido)methyl)-N-(4-methyl-3-((4-(pyridin-3-yl)pyrimidin-2-yl)amino)phenyl)benzamide (CHMFL-PDGFR-159) as a highly selective type II PDGFRα kinase inhibitor for PDGFRα driving chronic eosinophilic leukemia
作者:Qiang Wang、Feiyang Liu、Shuang Qi、Ziping Qi、Xiao-E. Yan、Beilei Wang、Aoli Wang、Wei Wang、Cheng Chen、Xiaochuan Liu、Zongru Jiang、Zhenquan Hu、Li Wang、Wenchao Wang、Tao Ren、Shanchun Zhang、Cai-Hong Yun、Qingsong Liu、Jing Liu
DOI:10.1016/j.ejmech.2018.03.003
日期:2018.4
selectivity profile (S score (10) = 0.02) at the concentration of 1 μM among 468 kinases/mutants in the KINOMEscan profiling. X-ray crystal structure of 15i in complex with PDGFRα revealed a distinct binding feature in the allosteric hydrophobic pocket which might help to expand the diversity of type II kinase inhibitors. Compound 15i potently inhibited the proliferation of PDGFRα driving Chronic Eosinophilic
通过探索由DFG移出非活性构象而产生的非高度保守的变构疏水口袋,我们发现了一种高度选择性的II型PDGFRα激酶抑制剂15i(CHMFL-PDGFRα-159),对纯化的PDGFRα(IC50)具有很强的效力:132 nM),但结构上不相似的PDGFRβ,ABL,c-KIT和VEGFR2激酶。此外,它在KINOMEscan分析中的468个激酶/突变体中浓度为1μM时,显示出高选择性(S评分(10)= 0.02)。与PDGFRα配合的15i的X射线晶体结构在变构疏水口袋中显示出独特的结合特征,这可能有助于扩大II型激酶抑制剂的多样性。化合物15i通过强烈阻断PDGFRα介导的信号通路,阻止细胞周期进程并诱导凋亡,有效抑制PDGFRα驱动慢性嗜酸性粒细胞白血病(CEL)细胞系EOL-1的增殖。此外,化合物15i在异种移植模型中有效地抑制了EOL-1肿瘤的进展,并提高了移植瘤模型中的存活率。