The size matters: regulation of lipid storage by lipid droplet dynamics

The size matters: regulation of lipid storage by lipid droplet dynamics
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大小很重要:脂滴动力学调节脂质储存

DOI:
10.1007/s11427-016-0322-x
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发表时间:
2016
期刊:
Science China Life Sciences
影响因子:
--
通讯作者:
Li Peng
Li Peng
中科院分区:
其他
文献类型:
--
作者:
Yu Jinhai;Li Peng

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充足的能量储存对于维持健康生活至关重要。脂滴(Lipid droplet,LD)是以中性脂质形式储存能量并在能量缺乏时释放脂肪酸的亚细胞器。LD的能量存储容量主要取决于LD的尺寸。LD的形成和生长受两条分子途径控制:中性脂质合成和非典型LD融合。LD的收缩由能量需求条件下中性脂质的降解介导,并由中性胞质脂肪酶和溶酶体酸性脂肪酶控制。本文综述了近年来有关LD大小和储能能力的调控途径和分子机制的研究进展。
Adequate energy storage is essential for sustaining healthy life. Lipid droplet (LD) is the subcellular organelle that stores energy in the form of neutral lipids and releases fatty acids under energy deficient conditions. Energy storage capacity of LDs is primarily dependent on the sizes of LDs. Enlargement and growth of LDs is controlled by two molecular pathways: neutral lipid synthesis and atypical LD fusion. Shrinkage of LDs is mediated by the degradation of neutral lipids under energy demanding conditions and is controlled by neutral cytosolic lipases and lysosomal acidic lipases. In this review, we summarize recent progress regarding the regulatory pathways and molecular mechanisms that control the sizes and the energy storage capacity of LDs.
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