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Design, synthesis and biological evaluation of potent EGFR kinase inhibitors against 19D/T790M/C797S mutation.
Bioorganic & Medicinal Chemistry Letters ( IF 2.5 ) Pub Date : 2020-06-09 , DOI: 10.1016/j.bmcl.2020.127327
Zhicheng Su 1 , Tingyuan Yang 1 , Jie Wang 1 , Mengzhen Lai 2 , Linjiang Tong 3 , Gulinuer Wumaier 4 , Zhuo Chen 1 , Shengqing Li 4 , Honglin Li 1 , Hua Xie 3 , Zhenjiang Zhao 1
Affiliation  

The efficacy of EGFR inhibitors is frequently affected by acquired resistance. EGFR19D/T790M/C797S mutation is one of the primary reasons for the emergence of resistance after treatment with the third-generation EGFR inhibitors such as AZD9291, CO1686 and Olmutinib. To overcome the resistance mutation 19D/T790M/C797S, we designed and prepared a series of indole derivatives with the terminal hydroxyl of alkyl chain to increase extra interaction with the Asp855 in the conservative DFG site. Activity evaluation, structure-activity relationship and docking analysis were also carried out. Among them, compound 12e displayed significant inhibitory activity against EGFR19D/T790M/C797S (IC50 = 15.3 nM) and good selectivity over EGFR WT (IC50 > 1000 nM), L858R/T790M (IC50, 156.6 nM) and L858R/T790M/C797S (IC50, 218.3 nM) respectively. Furthermore, 12e exhibited good growth inhibition activity, induced G1 phase cell cycle arrest and apoptosis in BaF3/EGFR19D/T790M/C797S cells by suppressing EGFR phosphorylation signaling pathway. In all, our study might provide a novel structural design method and lay the solid foundation for the development of the 4th generation EGFR19D/T790M/C797S inhibitors.



中文翻译:

针对19D / T790M / C797S突变的有效EGFR激酶抑制剂的设计,合成和生物学评估。

EGFR抑制剂的功效经常受到获得性耐药的影响。EGFR 19D / T790M / C797S突变是在使用第三代EGFR抑制剂(例如AZD9291,CO1686和Olmutinib)治疗后出现耐药性的主要原因之一。为了克服19D / T790M / C797S的抗性突变,我们设计并制备了一系列带有烷基末端羟基的吲哚衍生物,以增加在保守DFG位点与Asp855的额外相互作用。还进行了活性评估,构效关系和对接分析。其中,化合物12e对EGFR 19D / T790M / C797S表现出显着的抑制活性(IC 50  = 15.3 nM),并且对EGFR WT的选择性很好(IC50  > 1000纳米),L858R / T790M(IC 50,156.6纳米)和L858R / T790M / C797S(IC 50分别为218.3纳米)。此外,12e通过抑制EGFR磷酸化信号通路,在BaF3 / EGFR 19D / T790M / C797S细胞中表现出良好的生长抑制活性,诱导G1期细胞周期阻滞和凋亡。总之,我们的研究可能会提供一种新颖的结构设计方法,并为开发第四代EGFR 19D / T790M / C797S抑制剂奠定坚实的基础。

更新日期:2020-06-18
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