抑制TRPV4通过Sirt1/FoxO1信号通路调节髓,以缓解急性肺损伤
Xiuyun Wu1,2, Shasha Liu1,3,4, Qin Zhao2
1Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China.
Inflammation
|January 30, 2026
概括
暂时受体潜能瓦尼洛伊德4 (TRPV4) 通道通过抑制线粒细胞衰变而加剧急性肺损伤 (ALI). 抑制TRPV4可以通过Sirtuin 1 (Sirt1) / Forkhead box O1 (FoxO1) 途径恢复菌,这为ALI提供了潜在的治疗策略.
科学领域:
- 细胞生物学 细胞生物学
- 线粒体动力学的动力学
- 自自是一种自的过程.
背景情况:
- 急性肺损伤 (ALI) 涉及调节失调,其中涉及过渡受体潜在化物4 (TRPV4) 通道.
- 对于TRPV4在线中的作用及其与ALI中Sirtuin 1 (Sirt1) 信号通路的相互作用尚未完全理解.
研究的目的:
- 调查TRPV4在脂聚糖 (LPS) 诱导的ALI期间在线中所起的作用.
- 为了阐明TRPV4和Sirt1/Forkhead盒O1 (FoxO1) 信号轴在调节线粒和ALI之间的交叉声.
主要方法:
- 在体内和体外使用LPS诱导的ALI模型.
- 通过使用特定的激动剂 (GSK1016790A) 和对抗剂 (GSK2193874),分别实现了TRPV4的激活和抑制.
- 使用TRPV4淘汰赛小鼠和Sirt1抑制来评估对线粒和ALI的遗传和药理学影响.
主要成果:
- LPS上调TRPV4,氧化应激和亡,加剧了ALI.
- TRPV4激活损害了线粒,由减少LC3/TOMM20同局部化和PINK1/PARK2表达体现.
- 抑制或淘汰TRPV4减弱了ALI,增强了线粒体流动,并调节了Sirt1/FoxO1信号,促进了线粒体流动.
- Sirt1 抑制逆转了TRPV4 抑制的保护作用,证实了它在TRPV4 - 线粒轴中的作用.
结论:
- TRPV4通过抑制Sirt1/FoxO1-介导的线粒细胞衰变来加剧LPS诱导的ALI.
- 对TRPV4的遗传或药理抑制可以恢复功能失调的线粒体的线粒体除.
- TRPV4-Sirt1/FoxO1轴代表了败血性ALI和重症监护机构的新型治疗点.
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