内质网
生物
细胞生物学
未折叠蛋白反应
阿尔戈瑙特
信使核糖核酸
核糖核酸
基因沉默
P-体
RNA干扰
翻译(生物学)
生物化学
基因
作者
Franziska Ottens,Sotirios Efstathiou,Thorsten Hoppe
标识
DOI:10.1016/j.tcb.2023.11.003
摘要
The endoplasmic reticulum (ER) is central to the processing of luminal, transmembrane, and secretory proteins, and maintaining a functional ER is essential for organismal physiology and health. Increased protein-folding load on the ER causes ER stress, which activates quality control mechanisms to restore ER function and protein homeostasis. Beyond protein quality control, mRNA decay pathways have emerged as potent ER fidelity regulators, but their mechanistic roles in ER quality control and their interrelationships remain incompletely understood. Herein, we review ER-associated RNA decay pathways – including regulated inositol-requiring enzyme 1α (IRE1α)-dependent mRNA decay (RIDD), nonsense-mediated mRNA decay (NMD), and Argonaute-dependent RNA silencing – in ER homeostasis, and highlight the intricate coordination of ER-targeted RNA and protein decay mechanisms and their association with antiviral defense.
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