糖酸基酶5是激发动脉脂积累和加剧动脉样硬化的重要媒介
Qian Zhang1, Peng Zheng1, Yang Pan2
1Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
JACC. Basic to translational science
|May 28, 2025
概括
糖酸盐突变酶5 (PGAM5) 在动脉样硬化中升高,使病变恶化. 在巨细胞中抑制PGAM5可减少炎症和细胞迁移,这表明PGAM5是动脉样硬化治疗的治疗标.
科学领域:
- 心血管生物学 心血管生物学
- 分子医学是分子医学.
- 炎症研究 炎症研究
背景情况:
- 受体相互作用蛋白激酶-3 (RIPK3) - 糖酸突变酶5 (PGAM5) 途径与各种疾病有关.
- 在动脉样硬化病变的发病过程中,RIPK3-PGAM5通路的特定作用尚不清楚.
研究的目的:
- 研究RIPK3-PGAM5信号通路在动脉样硬化中的作用和机制.
- 为了确定PGAM5是否可能是动脉样硬化的潜在治疗标.
主要方法:
- 对人类和小鼠动脉样硬化病变中的酸化RIPK3和PGAM5表达的分析.
- 在体内和体外模型研究PGAM5过度表达的影响.
- 宏细胞特异性PGAM5敲击,以评估其对基因表达和细胞功能的影响.
- 在内皮和光滑肌细胞中评估炎症因子释放和细胞迁移.
主要成果:
- 酸化的RIPK3和PGAM5水平在动脉样硬化病变内的巨细胞中显著增加.
- 在实验模型中,PGAM5过度表达加剧了动脉样硬化病变的发展.
- 在巨细胞中对PGAM5的抑制导致血管类3 (ANGPTL3) 表达的增加.
- 抑制PGAM5可以减少炎症因子的释放,并抑制内皮细胞和光滑肌肉细胞的迁移.
结论:
- 在调解动脉样硬化中,PGAM5起着至关重要的作用.
- 向巨细胞中的PGAM5可能为治疗动脉样硬化提供了一种新的治疗策略.
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