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SIRT1激活减弱了C₂C₁₂肌肉细胞中的Palmitate诱导的亡

Gholamreza Taheripak^1,2, Niusha Sabeti^2,3, Naba Najar^1,2

¹Department of Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.

Molecular biology reports

|February 24, 2024

概括

激活SIRT1可以对抗骨肌细胞中棕酸盐诱导的亡,改善线粒体生物发生和2型糖尿病中的胰岛素抵抗. 这项研究突出了SIRT1的功能.

科学领域:

细胞生物学细胞生物学
代谢疾病代谢疾病
分子生物学分子生物学

背景情况:

2型糖尿病涉及胰岛素抵抗,主要在骨肌肉中.
赛尔图因1 (SIRT1) 与胰岛素信号通路有关.
在Palmitate诱导的亡中SIRT1的确切作用需要进一步阐明.

研究的目的:

研究SIRT1在骨肌细胞中palmitate诱导的亡中的作用.
确定激活SIRT1是否可以减轻Palmitate诱导的胰岛素耐药性和亡.

主要方法:

C2C12骨肌细胞用palmitate进行治疗,以诱导胰岛素抵抗.
在Palmitate诱导的亡期间,监测SIRT1表达水平.
评估了SIRT1激活和抑制对亡,线粒体生物发生和活性氧物种 (ROS) 的影响.

主要成果:

帕尔米酸诱导的亡降低了SIRT1的调节,并通过减少PGC-1抑制了线粒体生物发生.
SIRT1过度表达增强了线粒体生物发生,而SIRT1抑制剂sirtinol降低了它.
棕酸治疗增加了ROS水平,ROS抑制剂和通过增强SIRT1表达来减轻ROS水平,从而抑制了亡.

结论:

激活SIRT1可以改善2型糖尿病的胰岛素抵抗.
SIRT1减轻了脂质亡,并增强了骨肌细胞中的线粒体生物发生.
向SIRT1可能为2型糖尿病提供治疗策略.

关键词:

细胞灭亡 (apoptosis) 是一种死亡的过程.C2C12 肌肉细胞肌肉细胞 2 型糖尿病 2 型糖尿病线粒体生物发生是线粒体生物发生.棕酸盐是一种棕酸盐.一个SIRT1系统.

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