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Phospholipase A2 regulation of lipid droplet formation

AuthorsGuijas, Carlos ; Rodríguez, Juan Pablo; Rubio, Julio M. ; Balboa, María A. ; Balsinde, Jesús
KeywordsLipid droplet
Arachidonic acid
Lipid mediator
Phospholipase A2
Issue Date2014
CitationBiochimica et Biophysica Acta Molecular and Cell Biology of Lipids 1841(12): 1661-1671 (2014)
AbstractThe classical regard of lipid droplets as mere static energy-storage organelles has evolved dramatically. Nowadays these organelles are known to participate in key processes of cell homeostasis, and their abnormal regulation is linked to several disorders including metabolic diseases (diabetes, obesity, atherosclerosis or hepatic steatosis), inflammatory responses in leukocytes, cancer development and neurodegenerative diseases. Hence, the importance of unraveling the cell mechanisms controlling lipid droplet biosynthesis, homeostasis and degradation seems evident. Phospholipase A2s, a family of enzymes whose common feature is to hydrolyze the fatty acid present at the sn-2 position of phospholipids, play pivotal roles in cell signaling and inflammation. These enzymes have recently emerged as key regulators of lipid droplet homeostasis, regulating their formation at different levels. This review summarizes recent results on the roles that various phospholipase A2 forms play in the regulation of lipid droplet biogenesis under different conditions. These roles expand the already wide range of functions that these enzymes play in cell physiology and pathophysiology.
Publisher version (URL)http://dx.doi.org/10.1016/j.bbalip.2014.10.004
Identifiersdoi: 10.1016/j.bbalip.2014.10.004
issn: 1388-1981
Appears in Collections:(IBGM) Artículos
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