在NDUFC2的多态变异,编码线粒体综合体I子单元,与人类高血压中的心脏缩有关
Giovanna Gallo1, Maurizio Forte2, Maria Cotugno2
1Department of Clinical and Molecular Medicine, School of Medicine and Psychology, Sapienza University, Rome, Italy.
Molecular medicine (Cambridge, Mass.)
|August 9, 2023
概括
NDUFC2中的遗传变异与高血压患者的左心室缩 (LVH) 有关. 缺乏NDUFC2会损害线粒体功能,增加对心脏缩的易感性.
科学领域:
- 心脏病学 心脏病学
- 遗传学 遗传学 是一个
- 线粒体生物学 线粒体生物学
背景情况:
- 线粒体复合体I (CI) 功能障碍与左心室缩 (LVH) 有关.
- Ndufc2是一种CI的子单元,对其活性至关重要;缺乏会损害线粒体功能.
- NDUFC2/rs11237379的T等位基因与NDUFC2表达减少和线粒体功能受损有关.
研究的目的:
- 调查NDUFC2/rs11237379和NDUFC2/rs641836变体与高血压患者的LVH之间的关联.
- 为了探索减少Ndufc2表达对心肌细胞缩 in vitro的影响.
主要方法:
- 在246名高血压患者中进行遗传关联分析.
- 在实验室研究中使用H9c2和鼠类初级心肌细胞与Ndufc2沉默.
- 对心脏结构和功能参数的分析.
主要成果:
- 在NDUFC2/rs11237379的TT基因型与NDUFC2表达的减少和心脏参数 (如隔膜和后壁厚度) 的显著差异有关.
- 在NDUFC2/rs641836的A基因组与隔膜厚度,后壁厚度和LV质量的显著差异有关.
- 在体外,Ndufc2缺乏导致心肌细胞通过SIRT3-AMPK-AKT-MnSOD信号通路增大.
结论:
- NDUFC2变种与人类高血压中的LVH有显著的关联.
- Ndufc2缺乏驱动的线粒体功能障碍在心脏缩的发展中起着关键作用.
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