肝细胞Piezo1通过FGF21-STAT3通路调节糖原代谢
Tian Tao1, Ke Yang1, Zhenming Li1
1Department of Physiology, School of Medicine, Jinan University, 601 Huangpu Avenue West, Tianhe District, Guangzhou, Guangdong, 510632, China.
Cellular and molecular life sciences : CMLS
|November 13, 2025
概括
肝细胞中的Piezo1通道通过控制糖原代谢来调节血糖. 激活Piezo1可以改善葡萄糖耐受性,提供潜在的新型糖尿病治疗方法.
科学领域:
- * 分子生物学 * 分子生物学
- * 内分泌学 在内分泌学.
- * 代谢研究的研究
背景情况:
- *肝脏糖原代谢对于维持血糖平衡至关重要.
- *Piezo1,一种机械敏感的离子通道,与葡萄糖代谢有关,但其在肝脏糖原调节中的作用尚不清楚.
- *了解Piezo1在肝脏中的功能对于代谢疾病研究至关重要.
研究的目的:
- * 调查Piezo1在肝脏糖原代谢中的作用及其对葡萄糖平衡的影响.
- *阐明参与皮埃佐1介导的肝糖原调节的信号通路.
- * 探索Piezo1作为糖尿病的潜在治疗点.
主要方法:
- *使用Cre-adenovirus对小鼠进行肝脏特异的Piezo1删除.
- *高脂肪饮食诱导和使用Piezo1激动剂 (Yoda1) 和FGF21模拟剂 (PF-05231023).
- *体内葡萄糖耐受性测试,西式涂抹和体内细胞培养与基因淘汰.
主要成果:
- *肝脏特异的Piezo1缺失导致葡萄糖耐受性受损,增加了葡萄糖分解酶表达 (GYS2,PYGL) 和降低了FGF21水平,与STAT3通路抑制有关.
- *在高脂肪饮食中,Piezo1删除加剧了高血糖症,而FGF21类型的效应则逆转了.
- *通过Yoda1激活Piezo1,增加了FGF21,激活了STAT3,抑制了PYGL,并改善了葡萄糖耐受性.
结论:
- *Piezo1在调节肝脏糖原代谢和葡萄糖平衡中发挥着至关重要的作用.
- *Piezo1激活促进FGF21的产生,并激活STAT3通路,抑制PYGL活动.
- * 准Piezo1为治疗糖尿病和相关代谢障碍提供了一种新的治疗策略.
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