ER remodeling via ER-phagy.

ER remodeling via ER-phagy.
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通过内质网吞噬进行内质网重构。

DOI:
10.1016/j.molcel.2022.02.018
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发表时间:
2022-04-21
期刊:
影响因子:
16
通讯作者:
Dikic, Ivan
Dikic, Ivan
中科院分区:
生物学1区
文献类型:
--
作者:
Gubas, Andrea;Dikic, Ivan

文献摘要

参考文献

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内质网(ER)是许多重要细胞功能的热点。内质网膜是高度动态的,它影响内质网内发生的许多细胞过程。其中一个过程是内质网吞噬,这是内质网片段(包括膜和管腔含量)的选择性降解,它有助于保持内质网的大小,同时适应其在基础和应激条件下的形态。为了降解内质网,内质网经历选择性破碎,这是由特殊的内质网成形蛋白促进的,这些蛋白也充当内质网吞噬受体。它们感知和诱导膜曲率的能力,以及将内质网与自噬机制连接起来的能力,允许内质网成功破碎,并将这些碎片运送到溶酶体进行降解和再循环。在本文中,我们从膜重塑的角度对er吞噬进行了深入的研究。我们强调ER吞噬过程中ER膜动力学的重要性,并强调其失调如何反映人体生理和病理。在这篇综述中,Gubas和Dikic强调了内质网膜重塑在选择性内质网降解过程中的重要性。作者着重于含有网状同源结构域的蛋白及其参与内质网膜出芽和囊泡形成。
The endoplasmic reticulum (ER) is a hotspot for many essential cellular functions. The ER membrane is highly dynamic, which affects many cellular processes that take place within the ER. One such process is ER-phagy, a selective degradation of ER fragments (including membranes and luminal content), which serves to preserve the size of ER while adapting its morphology under basal and stress conditions. In order to be degraded, the ER undergoes selective fragmentation facilitated by specialized ER-shaping proteins that also act as ER-phagy receptors. Their ability to sense and induce membrane curvature, as well as to bridge the ER with autophagy machinery, allows for a successful ER fragmentation and delivery of these fragments to the lysosome for degradation and recycling. In this review, we provide insights into ER-phagy from the perspective of membrane remodeling. We highlight the importance of ER membrane dynamics during ER-phagy and emphasize how its dysregulation reflects on human physiology and pathology. In this review, Gubas and Dikic highlight the importance of ER membrane remodeling during the process of selective ER degradation. The authors focus on reticulon-homology-domain-containing proteins and their involvement in ER membrane budding and vesicle formation.
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