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基于纳夫他林-2-胺基架的Keap1-Nrf2蛋白-蛋白相互作用抑制剂的开发及其抗炎作用

Daisuke Yasuda¹, Kai Toyoshima², Koujin Kojima³

¹Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan.

|September 3, 2025

概括

一种新的pyrrolidine类型的乙化合物强烈激活Nrf2通路,通过准Keap1-Nrf2轴,显示治疗炎症疾病的潜力.

科学领域:

医学化学
分子生物学
药理学

背景情况:

核红素因子2相关因子2 (Nrf2) 和凯尔赫类ECH相关蛋白1 (Keap1) 途径是难治疾病的关键治疗点.
现有的Keap1- Nrf2蛋白相互作用抑制剂需要进一步的结构开发以提高疗效.

研究的目的:

设计和合成新的Nrf2激活剂.
评估合成化合物的细胞内Nrf2激活作用.
探索已识别的Nrf2激活剂在炎症状况中的治疗潜力.

主要方法:

新型基化合物的化学合成.
细胞内Nrf2激活的评估.
进行X射线共晶学以确定与Keap1的结合相互作用.
对Nrf2目标基因mRNA表达的分析 (HO-1,NQO1).
对LPS刺激的巨细胞的抗炎作用的评估.

主要成果:

一种新型的甲-1,4- ((4- 乙氧硫胺) 衍生物,在2位处具有三级乙胺侧链,显示出强烈的细胞内 Nrf2 激活.
皮罗利丁类型的乙胺化合物表现出最强的Nrf2激活,并与Keap1的DC域结合.
这种化合物诱导了Nrf2氧酶-1和NAD(P) H:氧降解酶-1的mRNA表达.
该化合物在巨细胞系中表现出显著的抗炎作用.

结论:

甲-2-乙胺是一种有前途的新型Nrf2激活剂.
这种化合物有效地向Keap1-Nrf2通路.
它有潜力开发新的炎症疾病治疗方法.

关键词:

凯尔克类ECH相关蛋白1 核因子红色素2相关因子2 乙胺抗炎作用蛋白质与蛋白质的相互作用

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