板素1针对线粒细胞衰变来调节缺血/再输血损伤
Lianjiu Su1,2,3, Jiahao Zhang4, Jing Wang4,5
1Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China. sulianjiu@whu.edu.cn.
Communications biology
|August 29, 2023
概括
板素1 (PANX1) 通过抑制线粒细胞吸收 (mitophagy) 来加剧急性损伤 (AKI),这是清除受损线粒体的关键过程. 阻断PANX1可能会保护脏免受缺血/再输液损伤.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 缺血/流 (I/R) 损伤是急性损伤 (AKI) 的主要原因之一.
- 线粒体损伤和 mitoophagy 损伤对 AKI 病原发生有显著的贡献.
- 泛素1 (PANX1) 在I/R损伤期间与炎症和ATP释放有关,但其在AKI中对髓细胞调节的作用尚不清楚.
研究的目的:
- 为了研究板素1 (PANX1) 在调节缺血/回流 (I/R) 损伤期间细胞衰变中的作用.
- 确定PANX1是否是AKI的潜在生物标志物或治疗标.
主要方法:
- 血清PANX1水平测量在心脏手术后AKI患者.
- 我们使用了I/R损伤的小鼠模型和基于细胞的低氧/低氧化 (H/R) 模型.
- 用PANX1的遗传删除来评估其保护作用.
主要成果:
- 血清PANX1水平升高与AKI严重程度相关 (肌素和尿素).
- 遗传PANX1缺失减弱了脏管状细胞死亡,氧化应激以及I/R损伤中的线粒体损伤.
- 发现PANX1通过ATP-P2Y-mTOR信号通路破坏了线粒.
结论:
- PANX1通过抑制线粒细胞衰变,在I/R损伤中起着有害的作用.
- PANX1可以作为一个有价值的生物标志物来预测AKI的发展.
- 向PANX1为缓解与I/R损伤相关的AKI提供了潜在的治疗策略.
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