Source:http://linkedlifedata.com/resource/pubmed/id/15469941
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
52
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pubmed:dateCreated |
2004-12-21
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pubmed:abstractText |
Carnitine palmitoyltransferase I (CPT-I) catalyzes the rate-controlling step in the pathway of mitochondrial fatty acid oxidation. Thyroid hormone will stimulate the expression of the liver isoform of CPT-I (CPT-I alpha). This induction of CPT-I alpha gene expression requires the thyroid hormone response element in the promoter and sequences within the first intron. The peroxisomal proliferator-activated receptor-gamma coactivator-1 alpha (PGC-1 alpha) is a coactivator that promotes mitochondrial biogenesis, mitochondrial fatty acid oxidation, and hepatic gluconeogenesis. In addition, PGC-1 alpha will stimulate the expression of CPT-I alpha in primary rat hepatocytes. Here we report that thyroid hormone will increase PGC-1 alpha mRNA and protein levels in rat hepatocytes. In addition, overexpression of PGC-1 alpha will enhance the thyroid hormone induction of CPT-I alpha indicating that PGC-1 alpha is a coactivator for thyroid hormone. By using chromatin immunoprecipitation assays, we show that PGC-1 alpha is associated with both the thyroid hormone response element in the CPT-I alpha gene promoter and the first intron of the CPT-I alpha gene. Our data demonstrate that PGC-1 alpha participates in the stimulation of CPT-I alpha gene expression by thyroid hormone and suggest that PGC-1 alpha is a coactivator for thyroid hormone.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Carnitine O-Palmitoyltransferase,
http://linkedlifedata.com/resource/pubmed/chemical/Luciferases,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Thyroid Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Fusion Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Retinoid X Receptors,
http://linkedlifedata.com/resource/pubmed/chemical/Transcription Factors,
http://linkedlifedata.com/resource/pubmed/chemical/Triiodothyronine,
http://linkedlifedata.com/resource/pubmed/chemical/peroxisome-proliferator-activated...
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
24
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pubmed:volume |
279
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
53963-71
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:15469941-Animals,
pubmed-meshheading:15469941-Carnitine O-Palmitoyltransferase,
pubmed-meshheading:15469941-Cell Line,
pubmed-meshheading:15469941-Enzyme Induction,
pubmed-meshheading:15469941-Gene Expression,
pubmed-meshheading:15469941-Immunosorbent Techniques,
pubmed-meshheading:15469941-Introns,
pubmed-meshheading:15469941-Liver,
pubmed-meshheading:15469941-Luciferases,
pubmed-meshheading:15469941-Polymerase Chain Reaction,
pubmed-meshheading:15469941-Promoter Regions, Genetic,
pubmed-meshheading:15469941-RNA, Messenger,
pubmed-meshheading:15469941-Rats,
pubmed-meshheading:15469941-Receptors, Thyroid Hormone,
pubmed-meshheading:15469941-Recombinant Fusion Proteins,
pubmed-meshheading:15469941-Response Elements,
pubmed-meshheading:15469941-Retinoid X Receptors,
pubmed-meshheading:15469941-Transcription Factors,
pubmed-meshheading:15469941-Transfection,
pubmed-meshheading:15469941-Triiodothyronine
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pubmed:year |
2004
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pubmed:articleTitle |
Peroxisomal proliferator-activated receptor-gamma coactivator-1 alpha (PGC-1 alpha) enhances the thyroid hormone induction of carnitine palmitoyltransferase I (CPT-I alpha).
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pubmed:affiliation |
Department of Pharmacology, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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