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通过有条件淘汰赛或PROTAC技术准Stat3,通过限制热亡来缓解损伤

Ming-Lu Ji¹, Jia-Nan Wang¹, Ming-Fei Wu²

¹Inflammation and Immune-Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.

|May 9, 2025

概括

向信号转换器和转录激活器3 (Stat3) 与向蛋白质分解的奇米拉 (PROTAC) 化合物E034有效减少急性损伤 (AKI). 这种新的方法针对Stat3/Trim21/Gsdmd路径,为损伤提供了一个有前途的治疗策略.

科学领域:

腎臟病學 (nephrology) 是一種醫學.
分子生物学分子生物学
生物化学生物化学

背景情况:

急性损伤 (AKI) 具有重大临床挑战,患病率和死亡率高.
在AKI中信号转换器和转录3 (Stat3) 激活器的确切作用和监管机制尚未完全理解.

研究的目的:

在AKI期间调查Stat3在管状上皮细胞中的作用.
探索使用一种新型蛋白质分解向奇米拉 (PROTAC) 化合物在AKI中向Stat3的治疗潜力.

主要方法:

为AKI模型生成Stat3条件淘汰赛 (cKO) 的小鼠 (结和穿孔,缺血-再输液).
设计和合成PROTAC化合物E034,以准Stat3进行降解.
使用人类脏组织,小鼠管状上皮细胞 (mTECs) 和HK-2细胞进行分子分析 (免疫组织化学,西部斑,qPCR,ChIP,RNA测序,SEM,Co-IP).

主要成果:

在AKI模型和人体活检中观察到总Stat3蛋白的升调,可能与基因素H3K27乙化有关.
管状上皮细胞中的Stat3淘汰会显著减轻AKI诱导的损伤和炎症.
发现Stat3诱导含有三方基因的蛋白质21 (Trim21) 转录,激活气皮素D (Gsdmd) 并导致热.
在AKI模型中,PROTAC E034的使用有效地减轻了损伤.

结论:

Stat3/Trim21/Gsdmd轴被确定为损伤的一个关键途径.
通过PROTAC介导的Stat3的向降解代表了AKI的一个有前途的治疗策略.

关键词:

基因组胺基因的修改这就是PROTAC.热灭菌的发生.造成脏损伤的人.统计统计统计

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