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Sirt4 缺乏促进心肌细胞增殖和心脏修复

Weijing Liu ^1,2, Jie Feng ^1,3, Yuan Zhang ⁴

¹State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
²Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, China.
³National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Central China Subcenter of National Center for Cardiovascular Disease, Henan Cardiovascular Disease Center, Fuwai Center-China Cardiovascular Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, China.
⁴National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central-China Hospital, Central China Branch of National Center for Cardiovascular Diseases, Zhengzhou University, Zhengzhou, China.
⁵Department of Physiology & Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.
⁶Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing, China.
⁷State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, China.
⁸NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China.
⁹Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, China.
¹⁰Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, China.
¹¹State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences &Peking Union Medical College, Beijing, China.

⁰State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Journal of Cellular and Molecular Medicine +

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2025年八月22日

在PubMed上查看摘要

概括

通过破坏DNA并阻止心肌细胞增殖,Sirt4蛋白抑制心脏再生. 缺少Sirt4可促进心脏的修复和改善受伤后的功能,这表明Sirt4抑制是潜在的治疗方法.

科学领域

心血管生物学
分子心脏病学
复原医学

背景情况

哺乳动物的心脏在出生后的再生能力有限.
心肌细胞循环的退出限制心脏修复.
素在心肌细胞增殖中的作用在很大程度上未知.

研究的目的

研究Sirt4在心肌细胞增殖中的作用.
确定Sirt4对心脏再生和修复的影响.
评估Sirt4作为治疗心脏病的目标.

主要方法

在心脏发育过程中评估Sirt4表达.
使用Sirt4过度表达的体外和体内模型.
检查的Sirt4敲击小鼠和成年小鼠遭受缺血-再输血损伤.

主要成果

Sirt4过度表达抑制了心肌细胞的增殖和新生儿的心脏再生.
Sirt4 缺乏增加了心肌细胞的增殖,并延长了再生窗口.
改善心脏功能和减少受伤后的纤维化.

结论

Sirt4 是心肌细胞增殖和心脏修复的关键调节剂.
针对Sirt4抑制为缺血性心脏病提供了潜在的治疗策略.
调节Sirt4可以提高心脏的再生能力.

关键词:

在Sirt4 心肌细胞的增殖心脏的再生氧化性DNA损伤