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Microarray analysis of genes activated by mouse CAR and human CAR in vivo.

ABSTRACT: This dataset is a four-ligand x three-genotype Affymetrix microarray analysis of the regulation of liver genes in the mouse by the constitutive androstane receptor (CAR).

ORGANISM(S): Mus musculus

PROVIDER: GSE40120 | GEO | 2012/08/15

SECONDARY ACCESSION(S): PRJNA172862

REPOSITORIES: GEO

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Microarray analysis of genes activated by mouse CAR and human CAR in vivo.

Project description:This dataset is a four-ligand x three-genotype Affymetrix microarray analysis of the regulation of liver genes in the mouse by the constitutive androstane receptor (CAR). 24 female mice of mixed background (C57BL/6x129Sv) were divided into three groups: wild-type (contains only mouse CAR; mCAR), CAR.KO = knockout mice (mice ablated for mCAR gene; mCAR -/-), and CAR.AH= contains human CAR transgene under the control of the mouse albumin promoter in the mCAR -/- background. Each of the three groups underwent four different treatment regimens: CO = corn oil vehicle control, PB = phenobarbitol (100 mg/kg/day), an anti-convulsant agent which can translocate both mCAR and hCAR into the nucleus to turn on target gene expression, TC = TCPOBOP, a potent non-metabolized ligand of mCAR (3 mg/kg), CITCO = a hCAR specific ligand (30 mg/kg/day). Two mice were used per treatment group and each mouse RNA was used for one chip.

2012-08-14 | E-GEOD-40120 | biostudies-arrayexpress

Phenobarbital mediates an epigenetic switch at the constitutive androstane receptor (CAR) target gene Cyp2b10 in the liver of B6C3F1 mice.

Project description:This SuperSeries is composed of the following subset Series: GSE34423: Phenobarbital mediates an epigenetic switch at the constitutive androstane receptor (CAR) target gene Cyp2b10 in the liver of B6C3F1 mice [Expression array]. GSE34462: Phenobarbital mediates an epigenetic switch at the constitutive androstane receptor (CAR) target gene Cyp2b10 in the liver of B6C3F1 mice [MeDIP array]. Refer to individual Series

2011-12-16 | E-GEOD-34463 | biostudies-arrayexpress

Transcriptional profiling of C57BL-mice with humanized CAR/PXR or CAR/PXR-knockout treated with DCB and CPA

Project description:To investigate the role of the nuclear receptors CAR (constitutive androstane receptor) and PXR (Pregnane X receptor) in mediating the effects of non-genotoxic carcinogens, groups of mice humanised or deleted for CAR and PXR were treated with 1,4-Dichlorobenzene or cyproterone acetate for 3d and liver tissue harvested for expression profiling. Control groups were treated with appropriate vehicles.

2018-04-27 | GSE68365 | GEO

Modulation of the mouse liver epigenome following TCPOBOP exposure

Project description:Changes in the activating histone-H3 chromatin marks K4me1, K4me3, and K27ac were assayed in male mouse liver following exposure to TCPOBOP, an agonist ligand of the nuclear receptor CAR (constitutive androstane receptor). This work is part of a larger study, entitled: "Widespread Epigenetic Changes to the Enhancer Landscape of Mouse Liver Induced by a Specific Xenobiotic Agonist Ligand of the Nuclear Receptor CAR" (Tox Sci, 2019).

2020-04-28 | GSE104060 | GEO

Effect of TCPOBOP on CAR and PXR regulated genes involved in drug metabolism and cholesterol homeostasis

Project description:The nuclear receptor CAR (constitutive androstane receptor) mediates the effects of 1,4-bis[2-(3,5-dichloropyridyloxy)]benzene (TCPOBOP) on gene transcription. To investigate the relative role of CAR and also PXR in the induction response, cDNA arrays were generated containing 120 (Sterolgene V1) genes which are known to be regulated with these or related nuclear receptors (genes involved in drug metabolism, cholesterol biosynthesis, sterol synthesis/transport, heme synthesis). Samples from livers of wild type and CAR-/-, PXR-/- or CAR/PXR-/- knockout mice were tested after treatment with TCPOBOP for gene expression within the European Framework V program “Steroltalk” (www.steroltalk.net). Results from these experiments show the complex role of CAR receptor in the expression of genes involved in drug metabolism and cholesterol biosynthesis. Animals were injected i.p. 10mg/kg TCPOBOP or vehicle (5% DMSO in corn oil). After 12h they were sacrificed and total RNA was isolated from the livers. Pools of untreated samples were mixed in each genetic variant group (wild type and CAR-/-, PXR-/- or CAR/PXR-/-) with the TCPOBOP treated ones and hybridized to Sterolgene V1 arrays.

2008-08-23 | E-GEOD-12509 | biostudies-arrayexpress

Transcriptional profiling of Primary Human Hepatocytes (PHH) depleted for CAR and treated with CITCO or Phenobarbital in -/+EGF medium

Project description:In primary human hepatocytes (PHH) the involvement of the Constitutive Androstane Receptor (CAR) in genes regulations has never been evaluated at the transcriptomic level. Here we investigated the impact of CAR depletion and epidermal growth factor on CAR dependent gene modulation in PHH. The xenosensor was activated by its direct (CITCO) or indirect (Phenobarbital/PB) agonists in presence or in absence of EGF.

2018-04-27 | GSE68493 | GEO

Effect of phenobarbital on CAR and PXR regulated genes involved in drug metabolism and cholesterol homeostasis

Project description:The nuclear receptors CAR (constitutive androstane receptor) and PXR (pregnane X receptor) mediate the effects of phenobarbital (PB) on gene transcription. To investigate the relative role of CAR and PXR in the induction response, cDNA arrays were generated containing 120 genes which are known to be regulated with these or related nuclear receptors (genes involved in drug metabolism, cholesterol biosynthesis, sterol synthesis/transport, heme synthesis). Samples from livers of wild type and CAR-/-, PXR-/- or CAR/PXR-/- knockout mice were tested after treatment with PB for gene expression within the European Framework V program “Steroltalk” (www.steroltalk.net). Results from these experiments unexpectedly revealed that if CAR and PXR are deleted, PB increases the expression of several other nuclear receptors and genes involved in drug metabolism and cholesterol biosynthesis. Animals were injected i.p. 100mg/kg phenobarbital or vehicle (5% DMSO in corn oil). After 12h they were sacrificed and total RNA was isolated from the livers. Pools of untreated samples were mixed in each genetic variant group (wild type and CAR-/-, PXR-/- or CAR/PXR-/-) with the phenobarbital treated ones and hybridized to Sterolgene V1 arrays.

2008-08-23 | E-GEOD-12489 | biostudies-arrayexpress

Effect of TCPOBOP on CAR and PXR regulated genes involved in drug metabolism and cholesterol homeostasis

2008-08-23 | GSE12509 | GEO

Effect of phenobarbital on CAR and PXR regulated genes involved in drug metabolism and cholesterol homeostasis

2008-08-23 | GSE12489 | GEO

Omics analyses of mouse constitutive androstane receptor (CAR) ligand TCPOBOP effects in humanized mice reveal off-target lipid metabolism disruption

Project description:Omics analyses of mouse constitutive androstane receptor (CAR) ligand TCPOBOP effects in humanized mice reveal off-target lipid metabolism disruption

| PRJNA774975 | ENA

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