类酸通过影响PI3K/AKT/mTOR信号通路的IGF-1减缓衰老
Yan Xu1,2, Jianlei Wei1, Wang Wang1
1Medical College of Basic Sciences, Jiamusi University, Jiamusi 154000, China.
Molecules (Basel, Switzerland)
|February 13, 2025
概括
类酸 (OA) 通过通过胰岛素样生长因子-1 (IGF-1) 抑制PI3K/AKT/mTOR途径,显示出延缓衰老的潜力. 这项研究探讨了OA.
科学领域:
- 细胞衰老和衰老研究.
- 衰老的分子机制.
- 对衰老的药理干预措施.
背景情况:
- 类酸 (OA) 具有已知的抗炎性质.
- 在衰老过程中OA的作用仍然在很大程度上未被描述.
- 胰岛素类生长因子-1 (IGF-1) 信号与衰老有关,但其调节机制需要进一步阐明.
研究的目的:
- 为了研究油酸 (OA) 在延缓细胞衰老方面的潜力.
- 为了阐明在PI3K/AKT/mTOR路径上OA的调节机制.
- 为了检查OA和胰岛素样生长因子-1 (IGF-1) 在衰老的背景下发出信号之间的相互作用.
主要方法:
- 在人类和小鼠纤维细胞中建立复制性和白素诱导的衰老模型.
- 用OA,IGF-1抑制剂或IGF-1重组蛋白来治疗老化的细胞.
- 评估衰老标志物,包括p16,IL-1β,IL-6,IL-8和SA-β-gal染色.
- 使用西部斑块,RT-qPCR和ELISA量化蛋白质和基因表达.
主要成果:
- 衰老细胞表现出高水平的IGF-1,PI3K/AKT/mTOR通路组件,p16,以及与衰老相关的分泌表型 (SASP) 因素 (IL-1β,IL-6,IL-8).
- 用OA治疗显著降低了老化细胞中IGF-1,PI3K/AKT/mTOR,p16和SASP因子的表达.
- 骨关节炎治疗表明老化标志物减少.
结论:
- 烯酸 (OA) 有效地减缓了细胞衰老.
- 通过对IGF-1的调节,OA通过抑制PI3K/AKT/mTOR通路来发挥其抗衰老作用.
- 这些发现将OA定位为抗衰老策略的有前途的治疗剂.
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