Transcriptomics

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Adipose tissue analysis of wild-type and beta-carotene 15-15'-oxygenase 1 (Bcmo1) ko mice fed under control diet and beta-carotene diet


ABSTRACT: Cell culture studies indicate that beta-carotene-(BC)-derived apocarotenoid signaling molecules influence the activities of nuclear receptors that regulate many aspects of adipocyte physiology. Here, we analyzed the roles of the two BC metabolizing enzymes, BCMO1 and BCDO2, for this process in mouse models. Wild-type mice converted BC into retinoids and showed reduced body adiposity (by 28%), leptinemia and adipocyte size. Genome wide microarray analysis revealed a generalized decrease of mRNA expression of peroxisome proliferator-activated receptor gamma (PPARgamma) target genes. Consistently, the expression of this key transcription factor for lipogenesis was significantly reduced both on the mRNA and protein levels. This effect of BC was absent in Bcmo1-/- mice that showed increased BCDO2 expression and gamma-10gamma-apocarotenoid production. Our study evidences an important role of BC for the control of body adiposity in mice and identifies Bcmo1 as critical molecular player for the regulation of PPARgamma activity.

ORGANISM(S): Mus musculus

PROVIDER: GSE27271 | GEO | 2011/06/01

SECONDARY ACCESSION(S): PRJNA137133

REPOSITORIES: GEO

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