| Increase in fatty acid synthetase content of 3T3-L cells undergoing spontaneous and chemically induced differentiation to adipocytes. | |
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MedLine Citation:
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PMID: 92315 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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3T3-L fibroblasts differentiate into adipose cells when maintained in a non-growing state. The specific activity of fatty acid synthetase of differentiated cells was 25--30-fold higher than that present in 3T3-L fibroblasts or in 3T3-C2 cells that possess an extremely low incidence of differentiation to adipocytes. The results of immunochemical analysis indicate that the increased specific activity of fatty acid synthetase in the differentiated cells is due to an increase in the cellular content of this enzyme. The rate of conversion of adipose cells was accelerated by brief exposure of confluent non-growing cultures of 3T3-L cells to 3-isobutyl-1-methylxanthine. This was accompanied by an increase in the specificity activity of fatty acid synthetase, which was also shown to be due to an increase in the cellular content of this enzyme. The continuous presence of 3-isobutyl-1-methylxanthine in the culture medium was not required to elicit the morphological and biochemical changes in 3T3-L cells that occurred many days after the removal of the inducer but earlier than the onset of spontanous differentiation. |
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Authors:
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P M Ahmad; T R Russell; F Ahmad |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The Biochemical journal Volume: 182 ISSN: 0264-6021 ISO Abbreviation: Biochem. J. Publication Date: 1979 Aug |
Date Detail:
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Created Date: 1980-01-24 Completed Date: 1980-01-24 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 2984726R Medline TA: Biochem J Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 509-14 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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1-Methyl-3-isobutylxanthine
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pharmacology Adipose Tissue / cytology*, enzymology Animals Cell Differentiation Cell Line Fatty Acid Synthetase Complex / immunology, metabolism* Fibroblasts / cytology, drug effects, enzymology* Mice |
| Chemical | |
Reg. No./Substance:
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28822-58-4/1-Methyl-3-isobutylxanthine; EC 6.-/Fatty Acid Synthetase Complex |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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