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Text
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URL Address
<a href="http://doi.org/10.1016/j.abb.2008.01.018" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/j.abb.2008.01.018</a>
Pages
1–16
Issue
1
Volume
472
Dublin Core
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Title
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Genomic structure and regulation of the rat hepatic CYP4F1 gene by peroxisome proliferators.
Publisher
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Archives of biochemistry and biophysics
Date
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2008
2008-04
Subject
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Animals; Cell Line; Chromosome Mapping; Cytochrome P-450 Enzyme System/*genetics; Gene Expression Regulation/drug effects/*genetics; Genetic/*genetics; Hepatocytes/drug effects/*physiology; Liver/drug effects/*physiology; Peroxisome Proliferator-Activated Receptors/*genetics; Peroxisome Proliferators/*pharmacology; Promoter Regions; Rats
Creator
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Donelson Ellen; Chen Liping; Zhang Xiaolan; Goswami Puja; Song Byoung J; Hardwick James P
Description
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The rat hepatic gene CYP4F1 encodes a fatty acid omega hydroxylase P450 that metabolizes proinflammatory eicosanoids and long-chain fatty acids. We have completely sequenced the CYP4F1 gene (Accession Nos. AF200361 and AF181083), identified multiple transcription start sites, and characterized a strong core promoter region, -760/116, induced by retinoic acids and peroxisome proliferators in rat hepatoma McA-RH7777 cells. Three peroxisome proliferator responsive elements (PPRE) bind both PPARalpha/RXRalpha and HNF4alpha. Co-transfection of McA-RH7777 cells with the -760/116 reporter construct and PPARalpha/RXRalpha or HNF4alpha showed that HNF4alpha activated while PPARalpha/RXRalpha inhibited CYP4F1 promoter activity. Treating cells with Wy14,643 reversed all initial effects, indicating co-regulation of CYP4F1 gene transcription by PPARalpha/RXRalpha and HNF4alpha. Chromatin immunoprecipitation analysis of cells treated with Wy14,643 showed association of PPARalpha/RXRalpha with the active transcription of the CYP4F1 gene while in clofibrate treated rats HNF4alpha binds during gene repression, suggesting differential regulation of the CYP4F1 gene in vivo and in cell lines.
Identifier
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<a href="http://doi.org/10.1016/j.abb.2008.01.018" target="_blank" rel="noreferrer noopener">10.1016/j.abb.2008.01.018</a>
Rights
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Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
2008
Animals
Archives of biochemistry and biophysics
Cell Line
Chen Liping
Chromosome Mapping
Cytochrome P-450 Enzyme System/*genetics
Department of Integrative Medical Sciences
Donelson Ellen
Gene Expression Regulation/drug effects/*genetics
Genetic/*genetics
Goswami Puja
Hardwick James P
Hepatocytes/drug effects/*physiology
Liver/drug effects/*physiology
NEOMED College of Medicine
Peroxisome Proliferator-Activated Receptors/*genetics
Peroxisome Proliferators/*pharmacology
Promoter Regions
Rats
Song Byoung J
Zhang Xiaolan