Key Regulators of Autophagosome Closure.

Key Regulators of Autophagosome Closure.
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自噬体关闭的关键调节因子。

DOI:
10.3390/cells10112814
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发表时间:
2021-10-20
期刊:
影响因子:
6
通讯作者:
Wang J
Wang J
中科院分区:
生物学2区
文献类型:
--
作者:
Jiang W;Chen X;Ji C;Zhang W;Song J;Li J;Wang J

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自噬是一种进化上保守的途径,其中细胞质组分被隔离在称为自噬体的双膜囊泡内,然后被转运到溶酶体或空泡中进行降解。超过40个保守的自噬相关(ATG)基因定义了自噬的五个过程的核心机制:起始,成核,延伸,闭合和融合。在这篇综述中,我们重点关注自噬中特征最少的事件之一,即隔离膜/吞噬细胞的关闭以形成密封的自噬体。该过程受到ESCRT机制、ATG蛋白、Rab GT3和Rab相关蛋白、SNARE、鞘磷脂和钙的严格调节。我们总结了自噬体关闭调控的最新进展,并讨论了有待解决的关键问题。
Autophagy is an evolutionarily conserved pathway, in which cytoplasmic components are sequestered within double-membrane vesicles called autophagosomes and then transported into lysosomes or vacuoles for degradation. Over 40 conserved autophagy-related (ATG) genes define the core machinery for the five processes of autophagy: initiation, nucleation, elongation, closure, and fusion. In this review, we focus on one of the least well-characterized events in autophagy, namely the closure of the isolation membrane/phagophore to form the sealed autophagosome. This process is tightly regulated by ESCRT machinery, ATG proteins, Rab GTPase and Rab-related proteins, SNAREs, sphingomyelin, and calcium. We summarize recent progress in the regulation of autophagosome closure and discuss the key questions remaining to be addressed.
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发表时间: 2015-11-02
期刊: Autophagy
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