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阻断胆固醇的形成和循环,改善了小鼠心脏微血管内皮细胞和心肌细胞中的细胞和线粒体功能

Alicja Braczko¹, Gabriela Harasim¹, Ada Kawecka¹

¹Department of Biochemistry, Medical University of Gdansk, Gdańsk, Poland.

Frontiers in physiology

|September 25, 2023

概括

蛋白转化酶子素/素9型抑制剂 (PCSK9i) 和阿托瓦斯塔丁对心血管细胞有益. 与阿托瓦斯塔丁相比,PCSK9i对细胞生物能学和功能表现出更好的影响.

科学领域:

心血管科学心血管科学
细胞生物能量学细胞生物能量学
药理学药理学是指药理学的学科.

背景情况:

类药物和PCSK9抑制剂是预防心血管疾病的关键疗法.
它们的机制涉及降低脂质和部分理解的类效应.
这项研究研究了它们对心脏微血管内皮细胞和心肌细胞的影响.

研究的目的:

分析阿托瓦斯塔丁和合成抑制剂PCSK9 (PCSK9i) 对细胞生物能量的影响.
评估它们对微血管内皮细胞和心肌细胞功能的影响.
为了比较PCSK9i与阿托瓦斯塔丁在正常和缺氧模仿条件下的疗效.

主要方法:

在H5V细胞和HL-1细胞中评估线粒体功能和丰度.
测量了细胞内核酸,膜潜力和细胞骨结构.
在正常条件下和CoCl2诱导的缺氧模拟条件下评估细胞增殖率.

主要成果:

在正常情况下,PCSK9i增强了线粒体呼吸,增加了核酸水平,稳定了细胞骨,并促进了内皮细胞的增殖.
在正常情况下,阿托瓦斯塔丁不表现出这些影响.
在低氧模拟条件下,阿托瓦斯塔丁和PCSK9i都改善了线粒体呼吸和膜潜力.

结论:

阿托瓦斯塔丁和PCSK9i治疗都对内皮细胞和心肌细胞的生物能效产生了积极影响.
与阿托瓦斯塔丁相比,PCSK9i表现出优越的益处,特别是在正常生理条件下.
这些发现突出显示了除了降脂之外,降脂疗法的明显细胞效应.

关键词:

这是心肌细胞 (cardiomyocytes).内皮细胞是内皮细胞.线粒体中的线粒体.蛋白转化酶子素/素9型 (PCSK9) 抑制剂类药物类药物类药物

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