首页|内质网应激和NLRP3炎症小体在急性肾损伤中的作用及其机制

内质网应激和NLRP3炎症小体在急性肾损伤中的作用及其机制

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急性肾损伤(acute kidney injury,AKI)是临床常见的危急重症,主要临床症状为肾功能短时间内急剧下降.AKI的发病机制复杂,目前尚未完全阐明.近年来研究发现,内质网应激(endoplasmic reticulum stress,ERS)和Nod样受体蛋白3(Nod-like receptor family pyrin domain containing 3,NLRP3)炎症小体的激活均与AKI的发生密切相关.肾脏受损时,肾细胞内环境稳态被破坏,ERS被激活,过度的ERS可引起肾细胞凋亡,导致AKI的发生.另外,NLRP3炎症小体可以介导宿主识别内源性和外源性危险信号分子,继而激活caspase-1、IL-1β和IL-18等,诱导炎症反应,促使肾细胞凋亡.在AKI的动物模型中,ERS标志物的表达水平升高会伴随NLRP3炎症小体相关蛋白表达水平的升高,表明ERS可以调控NLRP3炎症小体的活化过程.阐明ERS和NLRP3炎症小体在AKI中的作用及其机制,有望为AKI的防治提供新的思路.
Role and mechanism of endoplasmic reticulum stress and NLRP3 inflammasome in acute kidney injury
Acute kidney injury(AKI)is a common critical condition in clinical practice,characterized by a rapid decline in renal function within a short period.The pathogenesis of AKI is complex and has not been fully elucidated.In recent years,studies have found that the activation of endoplasmic reticulum stress(ERS)and the Nod-like receptor family pyrin domain containing 3(NLRP3)inflammasome are closely related to the occurrence of AKI.When the kidneys is damaged,the internal environment of the kidney cells is disrupted,leading to the activation of ERS.Excessive ERS can induce apoptosis of renal cells,leading to the occurrence of AKI.Additionally,the NLRP3 inflammasome can mediate the recognition of endogenous and exogenous danger signal molecules by the host,subsequently activating caspase-1,pro-inflammatory cytokines such as IL-1β and IL-18,inducing inflammatory responses,and promoting apoptosis of renal cells.In animal models of AKI,the upregulation of ERS markers is often accompanied by increased expression levels of NLRP3 inflammasome-related proteins,indicating that ERS can regulate the activation process of the NLRP3 inflammasome.Clarifying the role and mechanism of ERS and NLRP3 inflammasome in AKI is expected to provide new insights for the prevention and treatment of AKI.

endoplasmic reticulum stressNod-like receptor family pyrin domain containing 3 inflammasomeacute kidney injuryunfolded protein response

裴明欣、邓可、陈燕玲

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遵义医科大学珠海校区病理生理学教研室,广东 珠海 519041

内质网应激 Nod样受体蛋白3炎症小体 急性肾损伤 未折叠蛋白反应

国家自然科学基金国家自然科学基金

8156013382060814

2024

中南大学学报(医学版)
中南大学

中南大学学报(医学版)

CSTPCD北大核心
影响因子:1.459
ISSN:1672-7347
年,卷(期):2024.49(3)
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