| The role of globo-series glycolipids in neuronal cell differentiation--a review. | |
MedLine Citation:
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PMID: 9482241 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Alterations in glycolipid composition as well as glycosyltransferase activities during cellular differentiation and growth have been well documented. However, the underlying mechanisms for the regulation of glycolipid expression remain obscure. One of the major obstacles has been the lack of a well defined model system for studying these phenomena. We have chosen PC12 pheochromocytoma cells as a model because (a) the properties of these cells have been well characterized, and (b) they respond to nerve growth factor (NGF) by differentiating into sympathetic-like neurons and are amenable to well-controlled experimentation. Thus, PC12 cells represent a suitable model for studying changes in glycolipid metabolism in relation to cellular differentiation. We have previously shown that subcloned PC12 cells accumulate a unique series of globo-series neutral glycolipids which are not expressed in parental PC12 cells. This unusual change in glycolipid distribution is accompanied by changes in the activities of specific glycosyltransferases involved in their synthesis and is correlated with neuritogenesis and/or cellular differentiation in this cell line. We have further demonstrated that changes in the glycosyltransferase activities may be modulated by the phosphorylation states of the cells via protein kinase systems. We conclude that these unique globo-series glycolipids may play a functional role in the initiation and/or maintenance of neurite outgrowth in PC12 cells. |
Authors:
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T Ariga; R K Yu |
Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S.; Review |
Journal Detail:
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Title: Neurochemical research Volume: 23 ISSN: 0364-3190 ISO Abbreviation: Neurochem. Res. Publication Date: 1998 Mar |
Date Detail:
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Created Date: 1998-03-26 Completed Date: 1998-03-26 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7613461 Medline TA: Neurochem Res Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 291-303 Citation Subset: IM |
Affiliation:
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Department of Biochemistry and Molecular Biophysics, Medical College of Virginia, Virginia Commonwealth University, Richmond 23298-0614, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Carbohydrate Sequence Cell Differentiation / drug effects Globosides / physiology* Glycosphingolipids / physiology* Humans Molecular Sequence Data Neurons / cytology*, enzymology, metabolism* Rats |
| Grant Support | |
ID/Acronym/Agency:
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NS11853/NS/NINDS NIH HHS |
| Chemical | |
Reg. No./Substance:
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0/Globosides; 0/Glycosphingolipids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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