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The binding sites of Foxp4 on genome in the early stage of SVF cells differentiating to beige adipocytes

ABSTRACT: The binding sites of Foxp4 on genome in the early stage of SVF cells differentiating to beige adipocytes

PROVIDER: PRJNA820740 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18503932_1.fastq.gz	Fastqsanger.gz
	SRR18503932_2.fastq.gz	Fastqsanger.gz
	SRR18503933_1.fastq.gz	Fastqsanger.gz
	SRR18503933_2.fastq.gz	Fastqsanger.gz
	SRR18503934_1.fastq.gz	Fastqsanger.gz

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The binding sites of Foxp4 on genome in the early stage of SVF cells differentiating to beige adipocytes

Project description:We found deletion of Foxp4 in SVF cells would inhibit beige adipocyte differentiation and thermogenesis.In order to investage the binding sites of Foxp4 on genome of SVF cells, we isolated SVF cells from ingunal adipose tissues and did Foxp4 and H3K27ac ChIP-Seqs after two days' browning differentiaion.

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Genome-wide binding sites of Foxp4 in beige adipocyte

Project description:We found deletion of Foxp4 in mature adipocytes would augment juvenile and mature beige adipocyte thermogenesis.In order to investage the binding site of Foxp4 in the genome of beige adipocytes, we did Foxp4 ChIP-Seq with differentiated SVF cells derived from ingunal adipose tissues.

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Gene expression data of brown-like adipocytes from Lgr4 homozygous mutant SVF

Project description:Obesity has become a global health problem. Brown adipose tissue (BAT), specialized for energy expenditure through thermogenesis, potently counteracts obesity. Recently, BAT is also identified in human adults. We found that Lgr4 homozygous mutant (Lgr4m/m) mice display reduced adiposity and exhibit brown-like adipocytes in their WAT depots with higher expression of uncoupling protein 1 (Ucp1). Furthermore, Lgr4 ablation potentiates brown adipocyte differentiation from stromal vascular fraction (SVF) of epididymal WAT (eWAT) in vitro. We used microarrays to emxamine the gene expression profiles of the brown-like adipocytes differentiated from SVF of wild-type and Lgr4 mutant mice. We identified distinct gene expression profiles of these two groups. To demonstrate Lgr4 ablation can potentiate the differentiation of SVF from eWAT toward brown-like adipocytes in vitro, we isolated SVF from epididymal white adipose tissue (eWAT) of wild-type (WT) and Lgr4 mutant mice. We then plated SVF cells in 12-well plate, and differentiated them to brown adipocytes, followed by RNA extraction and hybridization with Affymetrix microarrays.

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Genome-wide binding sites of Foxp4 in beige adipocyte

Project description:Genome-wide binding sites of Foxp4 in beige adipocyte

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scRNA-seq of stromal vascular fraction (SVF) of lipoma and bulk RNA-seq of lipoma-derived adipocytes.

Project description:We determined the gene signatures of adipocytes differentiated from lipoma SVF. Furthermore, single-cell RNA-sequencing was performed for SVF from inherited (familial) and sporadic lipoma.

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Project description:Adipose tissue provides a defense against starvation and environmental cold. These dichotomous functions are performed by three distinct cell types: energy-storing white adipocytes, and thermogenic beige and brown adipocytes. Previous studies have demonstrated that exposure to environmental cold stimulates the recruitment of beige adipocytes in the white adipose tissue (WAT) of mice and humans, a process that has been extensively investigated. However, beige adipose tissue also develops during the peri-weaning period in mice, a developmental program that remains poorly understood. Here, we address this gap in our knowledge using genetic, imaging, physiologic, and genomic approaches. We find that, unlike cold-induced recruitment in adult animals, peri-weaning development of beige adipocytes occurs in a temperature- and sympathetic nerve-independent manner. Instead, the transcription factor B cell leukemia/lymphoma 6 (BCL6) acts in a cell autonomous manner to regulate the commitment but not the maintenance phase of beige adipogenesis. Genome-wide RNA-seq studies reveal that BCL6 regulates a core set of genes involved in fatty acid oxidation and mitochondrial uncoupling, which are necessary for development of functional beige adipocytes. Together, our findings demonstrate that distinct transcriptional and signaling mechanisms control peri-weaning development and cold-induced recruitment of beige adipocytes in mammals.

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Project description:Prolonged cold exposure stimulates the recruitment of beige adipocytes within white adipose tissue. Beige adipocytes depend on mitochondrial oxidative phosphorylation to drive thermogenesis. The transcriptional mechanisms that promote remodeling in adipose tissue during the cold are not well understood. Here we demonstrate that the transcriptional coregulator transducin-like enhancer of split 3 (TLE3) inhibits mitochondrial gene expression in beige adipocytes. Conditional deletion of TLE3 in adipocytes promotes mitochondrial oxidative metabolism and increases energy expenditure, thereby improving glucose control. Using chromatin immunoprecipitation and deep sequencing, we found that TLE3 occupies distal enhancers in proximity to nuclear-encoded mitochondrial genes and that many of these binding sites are also enriched for early B-cell factor (EBF) transcription factors. TLE3 interacts with EBF2 and blocks its ability to promote the thermogenic transcriptional program. Collectively, these studies demonstrate that TLE3 regulates thermogenic gene expression in beige adipocytes through inhibition of EBF2 transcriptional activity. Inhibition of TLE3 may provide a novel therapeutic approach for obesity and diabetes.

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Blockage of PPARg T166 phosphorylation enhances the inducibility of beige adipocytes and improves metabolic dysfunctions

Project description:Beige adipocytes in mammalian white adipose tissue (WAT) can reinforce fat catabolism and energy expenditure. Promoting beige adipocyte biogenesis is a tantalizing tactic for combating obesity and its associated metabolic disorders. Here, we report that a previously unidentified phosphorylation pattern (Thr166) in the DNA-binding domain of PPARg regulates the inducibility of beige adipocytes. This unique posttranslational modification (PTM) pattern influences allosteric communication between PPARg and DNA or coactivators, which impedes the PPARg-mediated transactivation of beige cell-related gene expression in WAT. The genetic mutation mimicking T166 phosphorylation (p-T166) hinders the inducibility of beige adipocytes. In contrast, genetic or chemical intervention in this PTM pattern favors beige cell formation. Moreover, inhibition of p-T166 attenuates metabolic dysfunction in obese mice. Our results uncover a mechanism involved in beige cell fate determination. Moreover, our discoveries provide a promising strategy for guiding the development of novel PPARg agonists for the treatment of obesity and related metabolic disorders.

2022-10-28 | GSE158615 | GEO

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