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Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity [BAT]

ABSTRACT: Analysis of brown adipose tissue from Yin Yang 1 (YY1) brown fat specific knockout mice fed a high fat diet for 3 months. YY1 deficiency in brown adipose tissue leads to strong thermogenic deficiency. The goal was to identify the genes controlled by YY1 responsible of brown fat defective function. Control mice YY1flox/flox versus YY1flox/flox; Ucp1Cre were fed a high fat diet for 3 months

ORGANISM(S): Mus musculus

SUBMITTER: Francisco Verdeguer

PROVIDER: E-GEOD-68429 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity.

Verdeguer Francisco F Soustek Meghan S MS Hatting Maximilian M Blättler Sharon M SM McDonald Devin D Barrow Joeva J JJ Puigserver Pere P

Molecular and cellular biology 20151026 1

Mitochondrial oxidative and thermogenic functions in brown and beige adipose tissues modulate rates of energy expenditure. It is unclear, however, how beige or white adipose tissue contributes to brown fat thermogenic function or compensates for partial deficiencies in this tissue and protects against obesity. Here, we show that the transcription factor Yin Yang 1 (YY1) in brown adipose tissue activates the canonical thermogenic and uncoupling gene expression program. In contrast, YY1 represses ...[more]

PMID: 26503783

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Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity [IWAT]

Project description:Analysis of subcutaneous adipose tissue (IWAT) from Yin Yang 1 brown fat specific knockout mice fed a high fat diet for 2 weeks. The goal was to identify a gene signature of IWAT browning in YY1 mutant mice. Control mice YY1flox/flox versus YY1flox/flox; Ucp1Cre were fed a high fat diet for 2 weeks

2015-11-10 | E-GEOD-68382 | biostudies-arrayexpress

Brown fat-specific YY1 deficiency effect on subcutaneous white adipose tissue

Project description:Analysis of visceral white adipose tissue (EWAT) from Yin Yang 1 adipose-specific knockout mice exposed to cold (4ºC) for 4 days. Control mice YY1flox/flox versus YY1flox/flox; Adiponectin Cre were cold exposed for 4 days.

2015-11-10 | E-GEOD-70562 | biostudies-arrayexpress

Expression data from mouse skeletal muscle

Project description:We generated skeletal muscle-specific knockout mice lacking the transcription factor Yin Yang 1 (YY1) and analyzed expression patterns in the skeletal muscle these mice. We used microarrays to detail the global programme of gene expression regulated by YY1. Wild type or knockout mice at 6 months were sacrificed and the soleus was isolated for RNA extraction.

2012-06-29 | E-GEOD-39009 | biostudies-arrayexpress

YY1 Controls Em-3â??RR DNA Loop Formation and Immunoglobulin Heavy Chain Class Switch Recombination.

Project description:Activation of splenic B cells induces formation of a 220kb DNA loop between Em and 3â??RR enhancers in the immunoglobulin heavy chain locus (IgH). This DNA loop has been proposed to be necessary for the crucial immune diversification mechanism of IgH class switch recombination, but the factors that control its formation are unknown. We show that conditional deletion of transcription factor YY1 in primary splenic B cells results in a dramatic drop in formation of this DNA loop, as well as immunoglobulin class switch recombination. Reconstitution of YY1-deleted splenic B cells with various YY1 mutants showed that the C-terminal half of YY1 lacking the transactivation domain restored both Em-3â??RR DNA loop formation as well as class switch recombination. RNA transcript analyses of YY1 conditional deleted splenic B cells suggest that YY1 does not regulate genes needed for DNA looping or CSR. Our results argue for a direct physical mechanism of YY1 mediating long-distance DNA loops and provide strong evidence of the importance of this DNA loop for class switching. Our results provide foundational mechanistic insight into a crucial immune function. Follicular B cells were isolated from the spleens of three C57Bl/6 yy1 fl/fl mice. For each spleen, half the cells received mock treatment and half received TATCRE. The 6 samples were then grown in RPMI medium along with LPS, Il4, OPI, and 20% FBS for 72 hours. The 6 groups of cells were lysed and RNA was isolated for library preparation. Expression differences between Mock and TATCRE treated cells were determined to understand the role of yy1 in B cell class switching.

2016-08-06 | E-GEOD-85259 | biostudies-arrayexpress

Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity [BAT]

Project description:Analysis of brown adipose tissue from Yin Yang 1 (YY1) brown fat specific knockout mice fed a high fat diet for 3 months. YY1 deficiency in brown adipose tissue leads to strong thermogenic deficiency. The goal was to identify the genes controlled by YY1 responsible of brown fat defective function.

2015-11-10 | GSE68429 | GEO

A methyltransferase EHMT1 controls brown adipose cell fate and adaptive thermogenesis through a PRDM16 complex

Project description:Brown adipose tissue (BAT) dissipates chemical energy in the form of heat, as a defense against hypothermia and obesity. Current evidence indicates that brown adipocytes arise from Myf5+-dermotomal precursors through the action of a PRDM16-C/EBP-_ transcriptional complex; however, the underlying mechanisms that determine lineage specification and maintenance of brown adipose cells remain poorly understood. Here we study the role of euchromatic histone-lysine N-methyltransferase 1 (EHMT1), a brown fat-enriched lysine methyltransferase, as an essential enzymatic component of the PRDM16 transcriptional complex and controls brown adipose cell fate. To identify targets and function of EHMT1, we performed genome-wide gene expression profiling of BAT from control mouce (Ehmt1flox/flox), Ehmt1Myf5 KO mouse (Myf5-Cre+/-; Ehmt1flox/flox) and Ehmt1adipo KO mouse (Adipo-Cre+/-; Ehmt1flox/flox). Loss of EHMT1 in Myf5+ lineage causes a near total loss of brown fat characteristics and induces muscle-selective gene program in vivo. In addition, adipose-specific deletion of EHMT1 by Adipo-Cre leads to a marked reduction of the thermogenic and fat oxidation genes.

2013-11-07 | E-MTAB-1704 | biostudies-arrayexpress

Brown Fat Tissue from Nipsnap1 Flox and Nipsnap1 KO mice via LC MS/MS

Project description:Proteomic Analysis from the brown fat of Nipsnap1 Flox and KO mice that were exposed to cold or thermoneutrality for 10 days.

2023-10-24 | PXD043252 | Pride

PPARg agonists induce a white-to-brown fat conversion through stabilization of PRDM16 protein

Project description:Brown adipose tissue dissipates energy through heat and functions as a defense against cold and obesity. PPARγ ligands have been shown to induce the browning of white adipocytes; however, the underlying mechanisms remain unclear. Here we show that PPARγ ligands require full agonism to induce a brown fat gene program preferentially in subcutaneous white adipose. These effects require expression of PRDM16, a factor that controls the development of classical brown fat. Depletion of PRDM16 blunts the effects of the PPARγ agonist rosiglitazone on the induced brown fat gene program. Conversely, PRDM16 and rosiglitazone synergistically activate the brown fat gene program in vivo. This synergy is tightly associated with an increased accumulation of PRDM16 protein, due in large measure to an increase in the half-life of the protein in agonist treated cells. Identifying compounds that stabilize PRDM16 protein may represent a novel therapeutic pathway for the treatment of obesity and diabetes. Microarray analysis of the differentiated inguinal adipocytes expressing sh-scr or sh-PRDM16 in the presence or absence of rosiglitazone (1uM). These samples were profiled using Affymetrix mouse 430A_2 arrays, representing 2 biological replicates for each samples (8 samples in total).

2012-03-06 | E-GEOD-35011 | biostudies-arrayexpress

Brown Adipose YY1 Deficiency Activates Expression of Secreted Proteins Linked to Energy Expenditure and Prevents Diet-Induced Obesity

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-11-10 | E-GEOD-68443 | biostudies-arrayexpress

Yy1 occupancy of mouse ES cell genome

Project description:These data include the genome wide location analyses of Yy1 by bioChIPs of Fbio-Yy1. Streptavidin precipitation of formaldehyde cross-linked chromatin prepared from Fbio-Yy1 and control expressing mouse ES cells

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