Discovery of Potent Keap1–Nrf2 Protein–Protein Interaction Inhibitor Based on Molecular Binding Determinants Analysis
作者:Zheng-Yu Jiang、Meng-Chen Lu、Li−Li Xu、Ting-Ting Yang、Mei-Yang Xi、Xiao-Li Xu、Xiao-Ke Guo、Xiao-Jin Zhang、Qi-Dong You、Hao-Peng Sun
DOI:10.1021/jm5000529
日期:2014.3.27
interrupting the Keap1–Nrf2 interaction has been emerged as a promising strategy to develop novel class of antioxidant, antiinflammatory, and anticancer agents. On the basis of the molecular binding determinants analysis of Keap1, we successfully designed and characterized the most potent protein–protein interaction (PPI) inhibitor of Keap1–Nrf2, compound 2, with KD value of 3.59 nM binding to Keap1 for
已知Keap1介导Nrf2的泛素化,Nrf2是抗氧化反应的主要调节剂。直接中断Keap1-Nrf2相互作用已成为开发新型抗氧化剂,抗炎剂和抗癌剂的一种有前途的策略。上Keap1的的分子结合决定簇分析的基础上,我们成功地设计和表征Keap1的-Nrf2的,化合物的最有力的蛋白质-蛋白质相互作用(PPI)抑制剂2,与ķ d 3.59纳米的值绑定到Keap1的首次到一位数纳摩尔。化合物2可有效破坏Nrf2-Keap1与EC 50的相互作用在荧光偏振测定中为28.6nM。它也可以剂量依赖的方式在基于细胞的ARE-荧光素酶报告基因分析中激活Nrf2转录活性。Nrf2转录目标的qRT-PCR结果给出了一致的结果。这些结果证实,通过小分子可以完全,直接,高效地中断Keap1-Nrf2 PPI。