Bcl-2/Beclin-1复合体在自噬中的调节作用

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中国生物化学与分子生物学报 ›› 2013, Vol. 29 ›› Issue (6) : 513-519.

综述

Bcl-2/Beclin-1复合体在自噬中的调节作用

叶挺,邵增务*

作者信息 +

The Function of Bcl-2/Beclin-1 Complex in Autophagy Regulation

YE Ting, SHAO Zeng-Wu*

Author information +

文章历史 +

摘要

自噬(autophagy)是一种进化保守的溶酶体依赖性分解代谢途径，是细胞维持自稳态的重要机制之一，并参与多种疾病的发生. Beclin-1作为自噬体成核的关键分子之一，是1个调节自噬的关键靶点. Beclin-1有1个BH3结构域，Bcl-2、Bcl-XL等可以通过这个BH3结构域与Beclin-1结合而影响其活性. 抗凋亡Bcl-2家族蛋白和Beclin-1的表达水平、磷酸化、分子的亚细胞定位以及BH3-only蛋白等，均可调节Beclin-1蛋白和Bcl-2家族蛋白结合水平，进而调控自噬的发生，并可能对细胞最终走向自噬还是凋亡起着关键作用.

Abstract

Autophagy is an evolutionarily conserved lysosomedependent catabolic mechanism to maintain cell homeostasis. The defect of autophagy was lined to the pathogenesis of many diseases. Beclin-1 is a key factor in the regulation of macroautophagy for its function to recruit key autophagy proteins in the forms of Beclin-1 containing core complex with Vps34, and Vps15. As a BH3-only Bcl-2 family protein, Beclin-1 is regulated by Bcl-2 family proteins through its BH3 domain. The expression levels, phosphorylation, subcellular localizaon of Beclin-1 and other Bcl-2 family antiapoptotic proteins, as well as other BH3-only proteins were known to regulate the Beclin-1 functions. Thus, Beclin-1 could be serving as a switching factor to determine whether the cells undergo autophagy or apoptosis.

导出引用

叶挺邵增务. Bcl-2/Beclin-1复合体在自噬中的调节作用[J]. 中国生物化学与分子生物学报, 2013, 29(6): 513-519

YE Ting, SHAO Zeng-Wu. The Function of Bcl-2/Beclin-1 Complex in Autophagy Regulation[J]. Chinese Journal of Biochemistry and Molecular Biology, 2013, 29(6): 513-519

中图分类号： R34

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收稿日期	修回日期	出版日期
2013-01-02	2013-02-09	2013-06-20
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