Macrophage-Derived Type 1 IFN, Renal Tubular Epithelial Cell Polyploidization, and AKI-to-CKD Transition.

IF 10.3 1区 医学 Q1 UROLOGY & NEPHROLOGY Journal of The American Society of Nephrology Pub Date : 2024-12-11 DOI:10.1681/ASN.0000000577
Yaqin Wang, Qigang Lan, Fugang Li, Jiachuan Xiong, Hailun Xie, Shuiqin Gong, Mengying Yao, Liangjing Lv, Shaozong Qin, Wang Xin, Aihong Zhang, Siyan Zhou, Yinghui Huang, Jinghong Zhao
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巨噬细胞衍生的I型IFN,肾小管上皮细胞多倍体化和aki向ckd转变。
背景:急性肾损伤(AKI)被认为是慢性肾脏疾病(CKD)的常见危险因素。AKI后肾小管上皮细胞多倍体化与不适应修复密切相关,而调控和分子机制尚不清楚。在这里,我们着手研究管状上皮细胞多倍体化的机制及其在aki向ckd转变中的作用。方法:采用流式细胞术和免疫荧光法检测AKI后多倍体小管上皮细胞和巨噬细胞的变化特征。通过rna测序分析、免疫荧光和western blot对其机制进行了探讨。通过转基因小鼠和药物干预评估了小管上皮细胞多倍体化在aki向ckd转变中的作用。结果:我们发现AKI后小管上皮细胞发生了多倍体化,多倍体小管上皮细胞比非多倍体细胞表现出更大的纤维化表型。此外,我们揭示了AKI后小管上皮细胞中IFN-β反应上调的特征,并发现巨噬细胞来源的IFN-β结合到小管上皮细胞的IFN- i受体1 (IFNAR1)并诱导其多倍体化。从机制上说,巨噬细胞通过激活环GMP-AMP合成酶-干扰素基因刺激因子(cGAS-STING)途径分泌IFN-β,作用于小管上皮细胞,促进无机焦磷酸酶与YAP结合,介导YAP去磷酸化和随后的核易位,最终导致p21的表达和多倍体化。重要的是,AKI后第4天延迟阻断IFN-β反应和药理抑制STING或YAP激活可显著减轻持续性小管上皮细胞多倍化和AKI诱导的肾纤维化。结论:巨噬细胞来源的IFN-β通过调节无机焦磷酸酶/YAP信号通路介导的p21表达,促进小管上皮细胞多倍体化,并进一步促进aki向ckd转变。
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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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