USP10 降低MTX2的含量,以抑制MI中的cGAS-STING信号
Guo-Jun Zhao1, Hui-Ting Shi1, Xiaoxu Tian1
1Department of Cardiology (G.-J.Z., H.-T.S., X.T., L.K., H.L., G.L., H.T., Y.Z.), The First Affiliated Hospital of Zhengzhou University, China.
Circulation research
|February 18, 2026
概括
通过抑制cGAS-STING通路,USP10 (ubiquitin-specific peptidase 10) 通过抑制cGAS-STING通路来保护心肌梗塞 (MI) 后的心脏损伤. 恢复边界区域心肌细胞中的USP10水平为MI提供了潜在的治疗策略.
科学领域:
- 心脏病学 心脏病学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 心肌梗塞 (MI) 影响左心室,造成心脏病发作,边界 (BZ) 和偏远区域.
- 研究重点是减少心脏损伤的BZ机制.
- 在BZ心肌细胞中减少USP10表达表明了治疗潜力.
研究的目的:
- 调查USP10在MI中的作用.
- 阐明USP10抑制cGAS-STING通路的机制.
主要方法:
- 使用孤立的BZ和缺氧治疗的心肌细胞.
- 雇佣了基因工程小鼠.
- 使用了免疫沉质谱和无处不在的测试.
主要成果:
- USP10可以防止心脏病发作引起的心脏损伤.
- USP10减轻了线粒体功能障碍,并阻止了mtDNA的释放,抑制了cGAS-STING.
- USP10通过在K93.3处对K48相关联的全方位化进行二基化来提高MTX2的稳定性.
结论:
- USP10是一种新型调节器,用于MI中cGAS-STING通路.
- 针对BZ心肌细胞中减少的USP10可以减轻MI心脏损伤.
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