Mammalian autophagy: core molecular machinery and signaling regulation.

Mammalian autophagy: core molecular machinery and signaling regulation.
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DOI:
10.1016/j.ceb.2009.11.014
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发表时间:
2010-04
影响因子:
7.5
通讯作者:
Klionsky DJ
Klionsky DJ
中科院分区:
生物学2区
文献类型:
--
作者:
Yang Z;Klionsky DJ

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自噬是一种细胞分解代谢途径,从酵母到哺乳动物都是进化保守的。该过程的核心是自噬体的形成,自噬体是负责将长寿命蛋白质和过量或受损的细胞器递送到溶酶体中以降解和再利用所得大分子的双膜囊泡。除了参与自噬体形成的核心分子机制组件的标志性发现外,控制自噬的复杂信号级联也开始出现,其中mTOR是核心但远非唯一的参与者。自噬的功能障碍与广泛的人类病理学有关,包括癌症,神经变性和病原体感染。在这里,我们强调最近的进展,确定和理解的核心分子机制和信号通路,参与哺乳动物自噬。
Autophagy, a cellular catabolic pathway, is evolutionarily conserved from yeast to mammals. Central to this process is the formation of autophagosomes, double-membrane vesicles responsible for delivering long-lived proteins and excess or damaged organelle into the lysosome for degradation and reuse of the resulting macromolecules. In addition to the hallmark discovery of core molecular machinery components involved in autophagosome formation, complex signaling cascades controlling autophagy have also begun to emerge, with mTOR as a central but far from exclusive player. Malfunction of autophagy has been linked to a wide range of human pathologies, including cancer, neurodegeneration and pathogen infection. Here we highlight recent advances in identifying and understanding the core molecular machinery and signaling pathways that are involved in mammalian autophagy.
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