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首页> 外文期刊>Progress in Lipid Research: An International Journal >The biogenesis of lipid droplets: Lipids take center stage
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The biogenesis of lipid droplets: Lipids take center stage

机译:脂液滴的生物发生:脂质采取中心舞台

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Lipid droplets (LDs) are multi-functional cellular organelles that store energy, and regulate many aspects of cell physiology. However, our understanding of the biogenesis of LDs remains very limited. Originating from the endoplasmic reticulum (ER), LDs are highly unique organelles in that each ID is bounded by a monolayer of amphipathic lipids. Recent progress has unveiled critical roles of non-bilayer lipids in LD formation. For instance, non-bilayer lipids such as lysophospholipids, diacylglycerol and phosphatidic acid (PA) can impact the curvature, surface and line tension of the ER, thereby impacting LD biogenesis. Two well-known regulators of LD formation, FIT2/FITM2 and seipin, have both been implicated in controlling the metabolism and/or distribution of non-bilayer lipids. We summarize and integrate these recent advances and propose that non-bilayer lipids may play a critical role in each step of LD biogenesis.
机译:脂液滴(LDS)是储存能量的多功能细胞细胞器,并调节细胞生理学的许多方面。 然而,我们对LDS生物发生的理解仍然非常有限。 源自内质网(ER),LDS是高度独特的细胞器,因为每个ID由单层脂质的单层界定。 最近进展在LD形成中揭开了非双层脂质的关键作用。 例如,非双层脂质如溶血磷脂,二酰基甘油和磷脂酸(PA)可以影响ER的曲率,表面和线张力,从而影响LD生物发生。 两种已知的LD形成稳定剂,FIT2 / FITM2和Seipin,两者都涉及控制非双层脂质的代谢和/或分布。 我们总结并整合了这些最近的进展,并提出了非双层脂质可能在LD生物发生的每个步骤中发挥关键作用。

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