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40
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Text
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URL Address
<a href="http://doi.org/10.1002/hep.25766" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/hep.25766</a>
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Pages
11-11
Issue
4
Volume
56
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Title
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Neonatal activation of the nuclear receptor CAR results in epigenetic memory and permanent change of drug metabolism in mouse liver
Publisher
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Hepatology
Date
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2012
2012-10
Subject
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mice; constitutive androstane receptor; cells; disease; Gastroenterology & Hepatology; clearance; induction; x-receptor; human health; bilirubin; coactivator; developmental plasticity
Creator
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Chen W D; Fu X H; Dong B N; Wang Y D; Shiah S; Moore D D; Huang W D
Description
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Aberrant epigenetic alterations during development may result in long-term epigenetic memory and have a permanent effect on the health of subjects. Constitutive androstane receptor (CAR) is a central regulator of drug/xenobiotic metabolism. Here, we report that transient neonatal activation of CAR results in epigenetic memory and a permanent change of liver drug metabolism. CAR activation by neonatal exposure to the CAR-specific ligand 1,4-bis[2-(3,5-dichloropyridyloxy)] benzene (TCPOBOP) led to persistently induced expression of the CAR target genes Cyp2B10 and Cyp2C37 throughout the life of exposed mice. These mice showed a permanent reduction in sensitivity to zoxazolamine treatment as adults. Compared with control groups, the induction of Cyp2B10 and Cyp2C37 in hepatocytes isolated from these mice was more sensitive to low concentrations of the CAR agonist TCPOBOP. Accordingly, neonatal activation of CAR led to a permanent increase of histone 3 lysine 4 mono-, di-, and trimethylation and decrease of H3K9 trimethylation within the Cyp2B10 locus. Transcriptional coactivator activating signal cointegrator-2 and histone demethylase JMJD2d participated in this CAR-dependent epigenetic switch. Conclusion: Neonatal activation of CAR results in epigenetic memory and a permanent change of liver drug metabolism. (HEPATOLOGY 2012)
Identifier
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<a href="http://doi.org/10.1002/hep.25766" target="_blank" rel="noreferrer noopener">10.1002/hep.25766</a>
Format
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Journal Article or Conference Abstract Publication
2012
bilirubin
Cells
Chen W D
clearance
coactivator
constitutive androstane receptor
developmental plasticity
Disease
Dong B N
Fu X H
Gastroenterology & Hepatology
Hepatology
Huang W D
human health
induction
Journal Article or Conference Abstract Publication
Mice
Moore D D
Shiah S
Wang Y D
x-receptor