Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Genome-Wide Profiling of Peroxisome Proliferator-Activated Receptor M-NM-3 in Primary Epididymal, Inguinal, and Brown Adipocytes Reveals Depot-Selective Binding Correlated with Gene Expression


ABSTRACT: Here we have employed chromatin immunoprecipitation combined with deep sequencing to map and compare PPARM-NM-3 binding in in vitro differentiated primary mouse adipocytes isolated from epididymal, inguinal, and brown adipose tissues. While these PPARM-NM-3 binding profiles are overall similar, there are clear depot-selective binding sites. Most PPARM-NM-3 binding sites previously mapped in 3T3-L1 adipocytes can also be detected in primary adipocytes, but there are a large number of PPARM-NM-3 binding sites that are specific to the primary cells, and these tend to be located in closed chromatin regions in 3T3-L1 adipocytes. The depot-selective binding of PPARM-NM-3 is associated with highly depot-specific gene expression. This indicates that PPARM-NM-3 plays a role in the induction of genes characteristic of different adipocyte lineages and that preadipocytes from different depots are differentially preprogrammed to permit PPARM-NM-3 lineage-specific recruitment even when differentiated in vitro. Examination of PPARM-NM-3 binding in in vitro differentiatied adipocytes isolated from three different adipose depots.

ORGANISM(S): Mus musculus

SUBMITTER: Susanne Mandrup 

PROVIDER: E-GEOD-41481 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Genome-wide profiling of peroxisome proliferator-activated receptor γ in primary epididymal, inguinal, and brown adipocytes reveals depot-selective binding correlated with gene expression.

Siersbæk Majken S MS   Loft Anne A   Aagaard Mads M MM   Nielsen Ronni R   Schmidt Søren F SF   Petrovic Natasa N   Nedergaard Jan J   Mandrup Susanne S  

Molecular and cellular biology 20120625 17


Peroxisome proliferator-activated receptor γ (PPARγ) is a master regulator of adipocyte differentiation and function. We and others have previously mapped PPARγ binding at a genome-wide level in murine and human adipocyte cell lines and in primary human adipocytes. However, little is known about how binding patterns of PPARγ differ between brown and white adipocytes and among different types of white adipocytes. Here we have employed chromatin immunoprecipitation combined with deep sequencing to  ...[more]

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