Document Detail


Interference of retinoic acid binding to its binding protein by omega-6 fatty acids.
MedLine Citation:
PMID:  2820396     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cellular retinoic acid-binding protein (CRABP) is the putative mediator of the biological effects of retinoic acid in the control of epithelial differentiation and tumorigenesis. Omega-6 fatty acids such as linoleic acid and arachidonic acid, precursors of prostaglandin synthesis, caused inhibition of retinoic acid binding to CRABP. These fatty acids, however, possessed lower affinity than retinoic acid for the binding protein. Omega-3 fatty acids, such as eicosapentaenoic acid and docosohexaenoic acid, did not cause such inhibition in the binding of retinoic acid. Whereas retinoic acid was a potent modulator of differentiation of F9 embryonal carcinoma cells, neither omega-3 nor omega-6 fatty acids showed any significant differentiation potential. Competition by omega-6 fatty acids with retinoic acid for CRABP may neutralize the binding protein-mediated biological functions of retinoic acid, and could thereby enhance tumor production.
Authors:
B P Sani; R D Allen; C M Moorer; B W McGee
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Biochemical and biophysical research communications     Volume:  147     ISSN:  0006-291X     ISO Abbreviation:  Biochem. Biophys. Res. Commun.     Publication Date:  1987 Aug 
Date Detail:
Created Date:  1987-10-08     Completed Date:  1987-10-08     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0372516     Medline TA:  Biochem Biophys Res Commun     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  25-30     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Arachidonic Acid
Arachidonic Acids / metabolism*
Binding, Competitive
Carrier Proteins / metabolism*
Chick Embryo
Fatty Acids, Unsaturated / metabolism*
Linoleic Acid
Linoleic Acids / metabolism*
Oleic Acid
Oleic Acids / metabolism
Plasminogen Activators / metabolism
Receptors, Retinoic Acid
Structure-Activity Relationship
Tretinoin / metabolism*
Grant Support
ID/Acronym/Agency:
CA 40756/CA/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Arachidonic Acids; 0/Carrier Proteins; 0/Fatty Acids, Unsaturated; 0/Linoleic Acids; 0/Oleic Acids; 0/Receptors, Retinoic Acid; 112-80-1/Oleic Acid; 2197-37-7/Linoleic Acid; 302-79-4/Tretinoin; 506-32-1/Arachidonic Acid; EC 3.4.21.-/Plasminogen Activators

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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