Regulation of lipid droplets by autophagy.

Regulation of lipid droplets by autophagy.
复制标题

通过自噬调节脂质液滴。

DOI:
10.1016/j.tem.2011.02.003
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发表时间:
2011-06
影响因子:
10.9
通讯作者:
Czaja, Mark J.
Czaja, Mark J.
中科院分区:
医学1区
文献类型:
--
作者:
Dong, Hanqing;Czaja, Mark J.

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自噬是一种溶酶体途径,细胞内细胞器和蛋白质通过该途径降解,为细胞提供能量并维持细胞稳态。最近脂滴已被确定为大自噬的底物。除了通过胞质脂肪酶的脂质代谢的经典途径之外,脂滴被隔离在自噬体中,自噬体与溶酶体融合以通过溶酶体酶分解脂滴组分。自噬响应营养供应变化的能力允许细胞改变脂滴代谢以满足细胞能量需求。自噬功能的病理生理变化可改变细胞脂质代谢并促进疾病状态。因此,自噬代表了脂质代谢和积累异常的新细胞靶点。
Autophagy is a lysosomal pathway by which intracellular organelles and proteins are degraded to supply the cell with energy and maintain cellular homeostasis. Recently lipid droplets have been identified as a substrate for macroautophagy. In addition to the classic pathway of lipid metabolism by cytosolic lipases, lipid droplets are sequestered in autophagosomes that fuse with lysosomes for the breakdown of lipid droplet components by lysosomal enzymes. The ability of autophagy to respond to changes in nutrient supply allows the cell to alter lipid droplet metabolism to meet cellular energy demands. Pathophysiological changes in autophagic function can alter cellular lipid metabolism and promote disease states. Autophagy therefore represents a new cellular target for abnormalities in lipid metabolism and accumulation.
DOI: 10.1007/s00418-008-0449-0
发表时间: 2008-08
影响因子: 2.3
作者:
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