王大伟, 张斌, 吕斌, 王广新. 自噬受体介导的非自噬降解功能研究进展J. 药学学报, 2016,51(1): 1-8. doi: 10.16438/j.0513-4870.2015-0944
引用本文: 王大伟, 张斌, 吕斌, 王广新. 自噬受体介导的非自噬降解功能研究进展J. 药学学报, 2016,51(1): 1-8. doi: 10.16438/j.0513-4870.2015-0944
WANG Da-wei, ZHANG Bin, LÜ Bin, WANG Guang-xin. Non-autophagic degradation roles of autophagy receptorsJ. Acta Pharmaceutica Sinica, 2016,51(1): 1-8. doi: 10.16438/j.0513-4870.2015-0944
Citation: WANG Da-wei, ZHANG Bin, LÜ Bin, WANG Guang-xin. Non-autophagic degradation roles of autophagy receptorsJ. Acta Pharmaceutica Sinica, 2016,51(1): 1-8. doi: 10.16438/j.0513-4870.2015-0944

自噬受体介导的非自噬降解功能研究进展

Non-autophagic degradation roles of autophagy receptors

  • 摘要: 近年来, 越来越多的证据表明, 自噬受体在介导泛素化及非泛素化蛋白转运至自噬体降解过程中扮演了重要角色。自噬受体可结合位于吞噬泡或者自噬体膜表面的微管相关蛋白1轻链3 (microtubule-associated protein1 1ight chain 3, LC3) 识别相关蛋白携带的信号, 将其精确地靶向自噬溶酶体。然而, 自噬受体蛋白结构中所包含的多种结构域决定了其多样的功能, 并非仅限于自噬。迄今为止, 多项研究发现细胞中存在多种蛋白不仅可作为自噬受体参与细胞自噬, 也可能作为信号通路的分子开关调节细胞的凋亡和存活。因此充分理解自噬受体蛋白的动态作用机制对探索细胞中某些信号分子之间的联系、疾病的生理或病理过程具有重要指导意义。本综述汇总了近年来发现的自噬受体蛋白, 着重介绍其在细胞内介导的非自噬降解功能及其在细胞信号转导中的研究进展。

     

    Abstract: A growing body of evidence has indicated the important role of autophagy receptors in directing ubiquitinated or non-ubiquitinated cargos towards autophagy. Autophagy receptors bind to LC3 (microtubule- associated protein 1 1ight chain 3) on phagophore and autophagosome membranes, and recognize signals on cargoes in the delivery system of autophagy. However, the diverse domains in the receptor structures determine that their roles would never be limited to autophagy. Up to date, increasing numbers of the receptor proteins have been demonstrated to serve as a molecular link or switch participating in autophagic degradation, apoptosis or cell survival signals. Here, we highlight the non-autophagic roles of these receptor proteins to draw attention to this growing research topic.

     

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