蛋白H针对MTCH2来调节MFN2依赖的线粒体质量控制,以缓解急性损伤
Dongliu Luo1, Yaning Qiu2, Jiahong Chu2
1College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China.
Journal of advanced research
|November 28, 2025
概括
蛋白H (SelH) 通过维护线粒体质量控制,防止急性损伤 (AKI). SelH针对MTCH2调节MFN2,从而减少AKI中的氧化应激和亡.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 线粒体医学 线粒体医学
- 细胞生物学 细胞生物学
背景情况:
- 线粒体功能障碍是急性损伤 (AKI) 病原体的核心.
- 蛋白H (SelH) 与涉及线粒体功能障碍的疾病有关,但其在AKI的线粒体质量控制 (MQC) 中的作用尚不清楚.
研究的目的:
- 调查 SelH 对 AKI 的影响.
- 阐明AKI中SelH的监管机制.
主要方法:
- 通过使用 SelH 淘汰赛小鼠建立了一种青诱导的 AKI 鼠标模型.
- 利用共免疫沉,质谱,激光共聚焦显微镜和分子对接来识别SelH相互作用蛋白质.
- 在HEK293t细胞中构建了SelH/线粒体载体同位素2 (MTCH2) 倒置和过度表达模型,以分析氧化应激,线粒体生物发生,动态,线粒体细胞衰变和亡.
主要成果:
- 确定了MTCH2作为SelH的交互伙伴.
- 脏SelH缺乏加剧了氧化应激,损害了线粒体生物发生,破坏了线粒体动力学,增强了线粒体,并促进了亡.
- 在体外,SelH针对MTCH2调节线粒素2 (MFN2),促进线粒体融合和缓解线粒体功能障碍.
结论:
- 通过准MTCH2/MFN2轴,SelH保持MQC平衡,减轻AKI诱导的氧化应激和亡.
- 塞尔赫代表了积极主动的AKI干预的潜在治疗目标.
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