摘要
内质网是真核细胞中分泌性蛋白折叠加工和运输过程中的重要细胞器.来自细胞内外的多种因素可引起错误折叠或未折叠的蛋白质在内质网中积累,导致内质网结构和功能异常,称之为内质网应激(ERS).内质网自噬是缓解ERS的重要内生机制,常被认为是一种细胞保护性程序,参与代谢、免疫应答、炎症反应及细胞增殖等多种重要的生理过程.内质网自噬可通过清除冗余、失能的内质网以及大体积的蛋白复合体来恢复内质网稳态,对细胞的命运至关重要.本文就内质网自噬类型、受体、调节机制及其在相关疾病中的作用和意义进行综述.
Abstract
Endoplasmic reticulum is an important organelle in eukaryotic cells,which is responsible for the folding,processing and transportation of secretory proteins.A variety of stimuli inside and outside cells can lead to the accumulation of misfolded or unfolded proteins in the endoplasmic reticulum,resulting in abnormal structure and function of the endoplasmic reticulum,which is called endoplasmic reticulum stress(ERS).Endoplasmic reticulum autophagy is an important endogenous mechanism to alleviate ERS.It is often considered as a cell protective procedure,which participates in many important physiological processes,such as metabolism,immune response,inflammatory response and cell proliferation.Endoplasmic reticulum autophagy is an important endogenous protective mechanism to alleviate endoplasmic reticulum stress and restore the endoplasmic reticulum homeostasis,through eliminating redundant and disabled endoplasmic reticulum membrane and macromolecular protein complexes,which is critical to cell function and fate.This paper reviews the types of endoplasmic reticulum autophagy,related specific receptors,main regulatory mechanisms,and its role and significance in the related diseases.
国家科技期刊平台
NSTL
万方数据