Journal
NEUROMOLECULAR MEDICINE
Volume 12, Issue 4, Pages 306-319Publisher
HUMANA PRESS INC
DOI: 10.1007/s12017-010-8132-8
Keywords
Sphingolipid; Metabolism; Neurodegenerative diseases; Lipid analysis; Mass spectrometry; Chromatography
Categories
Funding
- NIH [U54 GM069338]
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Sphingolipids (SP) are a complex class of molecules found in essentially all eukaryotes and some prokaryotes and viruses where they influence membrane structure, intracellular signaling, and interactions with the extracellular environment. Because of the combinatorial nature of their biosynthesis, there are thousands of SP subspecies varying in the lipid backbones and complex phospho- and glycoheadgroups. Therefore, comprehensive or sphingolipidomic analyses (structure-specific, quantitative analyses of all SP, or at least all members of a critical subset) are needed to know which and how much of these subspecies are present in a system as a step toward understanding their functions. Mass spectrometry and related novel techniques are able to quantify a small fraction, but nonetheless a substantial number, of SP and are beginning to provide information about their localization. This review summarizes the basic metabolism of SP and state-of-art mass spectrometric techniques that are producing insights into SP structure, metabolism, functions, and some of the dysfunctions of relevance to neuromedicine.
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