PIEZO1-Mediated Calcium Signaling and Podocyte Injury in Diabetic Kidney Disease.

IF 9.4 1区 医学 Q1 UROLOGY & NEPHROLOGY Journal of The American Society of Nephrology Pub Date : 2025-02-11 DOI:10.1681/ASN.0000000634
Weiwei Li, Zongwei Zhang, Zhuan Peng, Hongtu Hu, Xiaofei Cui, Zijing Zhu, Yue Qi, Wenjie Chen, Hongyan Liu, Wei Liang, Guohua Ding, Zhaowei Chen
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piezo1介导的钙信号和糖尿病肾病足细胞损伤。
背景:糖尿病肾病(DKD)的特点是肾小球内持续机械应力导致肾小球足细胞进行性损伤。压电蛋白作为细胞的机械传感器,通过感知机械力和调节细胞内离子通量在机械转导中起着关键作用。本研究探讨了Piezo1在DKD进展中的作用及其在足细胞损伤中的机制参与。方法:采用链脲佐菌素加高脂饮食法培养足细胞特异性Piezo1基因敲除小鼠。体外研究包括使用Piezo1抑制剂来评估钙内流、足细胞骨架重排和硬基质条件下的细胞凋亡。此外,我们还探索了活化T细胞胞质1 (NFATc1)和瞬时受体电位阳离子通道6 (TRPC6)信号通路的核因子,以确定它们在piezo1介导的足细胞损伤中的作用。利用腺相关病毒-TRPC6在足细胞特异性敲除Piezo1的小鼠中过表达TRPC6,以评估Piezo1与TRPC6在体内的相互作用。结果:足细胞特异性缺失Piezo1可显著改善糖尿病小鼠DKD的进展。抑制Piezo1可减少钙内流、细胞骨架重排和足细胞凋亡。从机制上讲,Piezo1激活触发了一个涉及NFATc1和TRPC6的信号循环,导致钙内流增加,使足细胞损伤永久化。体内TRPC6过表达抵消了Piezo1缺失的保护作用,证实了Piezo1/NFATc1/TRPC6轴在DKD进展中的关键作用。结论:Piezo1通过介导钙内流和激活NFATc1/TRPC6信号通路,在DKD进展过程中足细胞损伤中发挥关键的机械感觉作用。
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来源期刊
Journal of The American Society of Nephrology
Journal of The American Society of Nephrology 医学-泌尿学与肾脏学
CiteScore
22.40
自引率
2.90%
发文量
492
审稿时长
3-8 weeks
期刊介绍: The Journal of the American Society of Nephrology (JASN) stands as the preeminent kidney journal globally, offering an exceptional synthesis of cutting-edge basic research, clinical epidemiology, meta-analysis, and relevant editorial content. Representing a comprehensive resource, JASN encompasses clinical research, editorials distilling key findings, perspectives, and timely reviews. Editorials are skillfully crafted to elucidate the essential insights of the parent article, while JASN actively encourages the submission of Letters to the Editor discussing recently published articles. The reviews featured in JASN are consistently erudite and comprehensive, providing thorough coverage of respective fields. Since its inception in July 1990, JASN has been a monthly publication. JASN publishes original research reports and editorial content across a spectrum of basic and clinical science relevant to the broad discipline of nephrology. Topics covered include renal cell biology, developmental biology of the kidney, genetics of kidney disease, cell and transport physiology, hemodynamics and vascular regulation, mechanisms of blood pressure regulation, renal immunology, kidney pathology, pathophysiology of kidney diseases, nephrolithiasis, clinical nephrology (including dialysis and transplantation), and hypertension. Furthermore, articles addressing healthcare policy and care delivery issues relevant to nephrology are warmly welcomed.
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