海洋化合物在人类内皮原生细胞中表现出抗衰老作用,通过增加Sirtuin1表达
Jing Yang1, Jie Li2, Ting-Ting Wei1
1Department of Pharmacology, Cardiac & Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China.
ACS pharmacology & translational science
|November 17, 2023
概括
化合物3 (C3) 通过增强1型Sirtuin (SIRT1) 和平衡AMPK/Akt通路,防止人类内皮前体细胞 (hEPC) 的衰老. 这种海洋化合物显示出治疗与年龄有关的心血管疾病的潜力.
科学领域:
- 心血管疾病研究研究
- 细胞衰老机制 细胞衰老机制
- 海洋天然产品 海洋天然产品
背景情况:
- 老龄化增加了心血管疾病的风险.
- 内皮原生细胞 (hEPC) 对于血管健康至关重要.
- 海洋衍生化合物正在探索其治疗潜力.
研究的目的:
- 为了研究化合物3 (C3) 对人类内皮原生细胞 (hEPC) 衰老的影响.
- 阐明C3对与年龄有关的内皮功能障碍的保护作用背后的分子机制.
主要方法:
- 使用血管新生素II (AngII) 诱导 hEPC衰老.
- 对衰老标志物的评估 (SA-β-银酸酶,端粒酶活性,活力).
- 对关键信号通路 (SIRT1,AMPK,Akt) 的分析和对特定抑制剂的干预.
主要成果:
- AngII诱导了HEPC衰老,减少了端粒酶活性和活力.
- 取决于C3的剂量,逆转了AngII诱导的衰老,并恢复了细胞功能.
- C3增加了SIRT1表达和调节AMPK/Akt酸化,影响取决于SIRT1活动.
结论:
- 化合物3通过SIRT1上调和AMPK/Akt通路调节来保护HEPCs免受AngII诱导的衰老.
- C3显示出作为治疗老化相关心血管疾病的治疗剂的潜力.
- 用C3准HEPC衰老可能会减轻老年人内皮功能障碍.
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