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Metabolic control in VAT by Tregs through OSM-mediated suppression of adipogenesis

ABSTRACT: Metabolic control in VAT by Tregs through OSM-mediated suppression of adipogenesis

PROVIDER: PRJNA941941 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR23726437_1.fastq.gz	Fastqsanger.gz
	SRR23726437_2.fastq.gz	Fastqsanger.gz
	SRR23726438_1.fastq.gz	Fastqsanger.gz
	SRR23726438_2.fastq.gz	Fastqsanger.gz
	SRR23726439_1.fastq.gz	Fastqsanger.gz

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Metabolic control in VAT by Tregs through OSM-mediated suppression of adipogenesis

Project description:Regulatory T cells (Tregs) play diverse roles in tissue homeostasis. In visceral adipose tissue (VAT), resident Tregs, enriched with PPARγ, are clonally expanded in a IL-33 dependent manner. However, the tissue-specific functions of VAT Tregs, with unique transcriptome compared to spleen or other peripheral tissues, remain largely unknown. We identified two PPARγ+ mesenchymal stromal cells in VAT (VmSCs), named VmSC4s (PPARγ+Thy1-) and 5s (PPARγ+Thy1+). Lineage-tracing and transcriptome analysis revealled that VmSC4s contain precursors for VmSC5s. We also demonstrated that VAT Tregs directly suppress adipogenic differentation of VmSC5s through Oncostain M (OSM) to promote insulin sensitivity and glucose tolerance. Thus, VAT-Treg-derived OSM and VmSCs-displayed OSMR maintain tissue homeostasis via limiting the differentiation of dysfunctional adipocytes, which provide therapeutic targets for treating obesity and diabetes.

2023-08-01 | GSE226889 | GEO

Transcriptional profiling of Visceral Adipose Tissue (VAT) and splenic Tregs over circadian time

Project description:We isolated VAT and splenic Tregs every four hours over twenty-four hours and reported their transcriptome. We found that the expression of core clock genes was upregulated and rhythmic in VAT Tregs compared with splenic Tregs. Additionally, we described hundreds of other genes with rhythmic expression over time.

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Gene expression profile of regulatory T cells (Tregs) isolated from visceral adipose tissue and lymph nodes of mice sufficient and deficient of Pparg expression in Tregs

Project description:We identified Pparg as a major orchestrator of the phenotype of adipose-tissue resident regulatory T cells (VAT Tregs). To establish the role of Pparg in shaping the VAT Tregs gene profile and cell dynamics, Tregs from lymph nodes and visceral adipose tissue of mice sufficient and deficient of Pparg expression in Tregs were double sorted for microarray analysis. All gene expression profiles were obtained from highly purified (double-sorted) T cell populations sorted by flow cytometry. To reduce variability, cells from multiple mice were pooled. Triplicates were generated for all groups. Raw data were preprocessed with the RMA algorithm in GenePattern and averaged expression values were used for analysis.

2012-05-03 | E-GEOD-37532 | biostudies-arrayexpress

Transcriptional profiling of Bmal1WT and Bmal1KO Tregs

Project description:We isolated visceral adipose tissue (VAT) Tregs from Foxp3.YFP-Cre Bmal1WT or Foxp3.YFP-Cre bmal1flox mice fed a normal lean diet or a high-fat diet. VAT Tregs were also sorted after adoptive transfer. We found that Bmal1KO Tregs are more activated in lean mice, after 4 weeks HFD and after adoptive transfer, but loseVAT Treg signature after 16 weeks of high-fat diet feeding.

2022-07-28 | GSE206775 | GEO

Gene expression profile of regulatory T cells (Tregs) isolated from visceral adipose tissue and lymph nodes of mice sufficient and deficient of Pparg expression in Tregs

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Transcriptional profiling of Visceral Adipose Tissue (VAT) and splenic Tregs over circadian time

Project description:Transcriptional profiling of Visceral Adipose Tissue (VAT) and splenic Tregs over circadian time

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Transcriptional characterization of visceral adipose tissue (VAT) mesenchymal stromal cell (mSC) subtypes in male and female C57BL/6 mice.

Project description:Regulatory T cells (Tregs) are key brakes on the VAT inflammation that regulates local and systemic metabolic tenor. The cytokine, IL-33, expands and sustains the unique Treg population residing within VAT. Making use of single-cell RNA sequencing, we identified the major IL-33 producers in VAT to be particular mSC subtypes, related to but distinct from adipocyte progenitor cells. We further characterize these subsets by individually isolating them and performing bulk-RNA sequencing. We explored modulation of the VAT-mSC (VmSC) landscape with physiologic variables such as age and sex, as well as pathogenic states like obesity. We uncovered a VAT Treg:stromal-cell negative regulatory loop that keeps the potent effect of IL-33 under rein.

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Expression data in ischemic brain tissue and brain Tregs

Project description:Foxp3+ regulatory T cells (Tregs) are critical components of immune tolerance. In addition, Tregs residing in non-immune tissues perform specialized functions in tissue homeostasis and remodeling. The characteristics and functions of brain Tregs, however, are not well understood, in part because the number of Tregs in the brain under normal conditions is very low. However, during the chronic phase two weeks after a stroke caused by ischemic brain injury, a massive accumulation of Tregs occurs in the brain. We found that brain Tregs differ from Tregs in other tissues such as adipose tissue (VAT) and muscle Tregs.

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2016-08-17 | GSE83418 | GEO

Transcriptional profiling of mouse ST2+ and ST2- Tregs across tissues

Project description:Foxp3+ regulatory T cells (Tregs) are critical mediators of peripheral tolerance and immune homeostasis. Tregs that express the IL-33 receptor ST2 are enriched in peripheral nonlymphoid tissues and can exert a variety of tissue-specific functions from metabolic regulation within adipose tissue to skeletal muscle repair. However, the relationship between ST2+ and ST2- Tregs within and across different tissues remains unclear. To compare murine ST2- and ST2+ Tregs within and across tissues, we performed RNA sequencing (RNAseq) of ST2-CD44hi and ST2+CD44hi Tregs from blood, spleen, lungs, visceral adipose tissue (VAT), colon, and skin. RNAseq was also performed on ST2- CD44lo CD62L+ Tregs from the spleen and lungs. We found that the tissue microenvironment was the major factor shaping the transcriptome of Tregs across tissues. Across the tissues studied, Treg transcriptomes displayed an ordered hierarchy that may represent graded levels of activation or differentiation across tissues. We also identified a core signature that distinguished ST2+ Tregs from ST2- Tregs across tissues and a large number of differentially expressed genes between ST2- and ST2+ Tregs within individual tissues that could support the tissue-specific adaptation and function of ST2+ Tregs. In summary, our work highlights the unique, tissue-specific phenotype of ST2+ Tregs and reveals a core ST2+ Treg transcriptional signature shared across tissues.

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