| Induction of peroxisomal proliferator-activated receptor gamma and peroxisomal proliferator-activated receptor gamma coactivator 1 by unsaturated fatty acids, retinoic acid, and carotenoids in preadipocytes obtained from bovine white adipose tissue1,2. | |
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MedLine Citation:
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PMID: 20154154 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The importance of dietary fat components, such as fatty acids, in the expression of multiple genes is clear. In the case of beef cattle, fat in the form of fatty acids (saturated or unsaturated), vitamin A (mainly retinoic acid), or carotenoids (beta-carotene and lutein) is obtained from dietary feed or pasture. The aim of this work was to study the effect of fatty acids (phytanic and pristanic acids), vitamin A (all-trans and 9-cis retinoic acid), and carotenoids (beta-carotene and lutein) on the expression of PPARgamma and its coactivator PGC-1alpha during differentiation of bovine white adipose tissue. Samples were collected at slaughter from subcutaneous adipose tissue and processed in a solution containing type II collagenase for 2 h at 37 degrees C. Cells were resuspended in basal medium, Dulbecco's modified Eagle's medium containing 5% fetal bovine serum, plated on 24-well culture plates at a density of 1 x 10(4) cells/cm(2), and incubated at 37 degrees C in a 5% CO(2) atmosphere. Preadipocyte differentiation after reaching confluence was induced by various treatments: rosiglitazone (20 microM); unsaturated fatty acids: phytanic acid (25, 50, 100 microM) and pristanic acid (25, 50, 100 microM); retinoids: 9-cis retinoic acid (0.5, 0.75, 1 microM) and all-trans retinoic acid (0.5, 0.75, 1 microM); and carotenoids: beta-carotene (10, 20, 30 microM) and lutein (10, 20, 30 microM). Expression of PPARgamma and PGC-1alpha was measured in differentiated cells. Phytanic acid, all-trans retinoic acid, and 9-cis retinoic acid were the best activators of PPARgamma expression, and the combination of 9-cis and all-trans retinoic acid was the best activator of PGC-1alpha expression (P < 0.05). Therefore, these are powerful agents for the promotion of bovine adipogenesis and constitute promising compounds to be used in bovine fattening. |
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Authors:
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P García-Rojas; A Antaramian; L González-Dávalos; F Villarroya; A Shimada; A Varela-Echavarría; O Mora |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-02-12 |
Journal Detail:
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Title: Journal of animal science Volume: 88 ISSN: 1525-3163 ISO Abbreviation: J. Anim. Sci. Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-04-15 Completed Date: 2010-07-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8003002 Medline TA: J Anim Sci Country: United States |
Other Details:
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Languages: eng Pagination: 1801-8 Citation Subset: IM |
Affiliation:
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Programa de Posgrado en Ciencias de la Producción y de la Salud Animal, Universidad Nacional Autónoma de México, México City 04510, México. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adipocytes, White
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cytology,
drug effects*,
metabolism Animals Carotenoids / pharmacology* Cattle Cells, Cultured Dose-Response Relationship, Drug Fatty Acids, Unsaturated / pharmacology* Gene Expression Regulation / drug effects Male PPAR gamma / genetics, metabolism* Transcription Factors / genetics, metabolism* Tretinoin / pharmacology* |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Unsaturated; 0/PPAR gamma; 0/Transcription Factors; 0/peroxisome-proliferator-activated receptor-gamma coactivator-1; 302-79-4/Tretinoin; 36-88-4/Carotenoids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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