3 years ago

Noncanonical Roles of Lipids in Different Cellular Fates

Noncanonical Roles of Lipids in Different Cellular Fates
G. Ekin Atilla-Gokcumen, Laura R. Parisi, Darleny Y. Lizardo, Nasi Li
Lipids are a diverse class of biomolecules. The biosynthesis and transport of these molecules are controlled by a considerable number of proteins, which facilitate spatiotemporal regulation of lipids during different fundamental cellular processes. Although lipids are traditionally considered as molecules for energy storage and as structural components of membranes, they are being increasingly recognized for their signaling roles. There is a growing appreciation of lipids’ chemical diversity, which approaches that of proteins. In this Perspective, we discuss recent studies that suggest novel functions for distinct lipid species during different cellular processes. In particular, we discuss findings from our laboratory that illuminate the involvement of ceramides, polyunsaturated triacylglycerols, and very long chain fatty acids in different cellular fates. We also highlight recent innovative methods that have enabled the recognition of previously unknown lipid classes and/or roles of these molecules in different biological processes. We envision that advances in lipid identification, visualization, and perturbation will pave the way for broader investigations into this fascinating and influential class of biomolecules.

Publisher URL: http://dx.doi.org/10.1021/acs.biochem.7b00862

DOI: 10.1021/acs.biochem.7b00862

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