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RNA-Sequencing of ST2+ Treg cells in response to IL-33 stimulation

ABSTRACT: The effects of IL-33 on ST2+ Treg cells were not studied thouroughly. We FACS-sorted in vitro expanded ST2+ Treg cells from C57BL/6 Foxp3-IRES-mRFP (B6 FIR) mice. We next used RNA-seq techonology to define how recombinant IL-33 (rIL-33) may impact mouse Treg by to assessing the transcriptome of IL-33-stimulated ST2+ Treg cells compared to that of untreated ST2+ Treg cells. Our data revealed that ST2+ Treg stimulated with rIL-33 for 6 hours exhibited increased expression of Il10 and Il13 compared to unstimulated ST2+ Treg cells.

ORGANISM(S): Mus musculus

PROVIDER: GSE123922 | GEO | 2019/05/17

REPOSITORIES: GEO

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The IL-33/ST2 axis and tissue Treg maintains epithelial homeostasis in the skin and restrains cancer development

Project description:IL-33 is constitutively expressed in many epithelial tissues at steady state and signals through the receptor, ST2. IL-33 is released upon tissue injury and functions as an endogenous danger signal to alert the immune system to tissue damage. Here we investigate the physiological role of the IL-33/ST2 axis in skin homeostasis and cancer development. We show that expression of IL-33 differentiates malignant from normal/benign human tissues and that in mouse models of cutaneous squamous cell carcinoma the IL-33/ST2 axis protects against carcinogenesis. Tissue Treg are the predominant cells expressing ST2 in the skin and localise around the hair follicle and IL-33+ epithelial cells (EC). Adoptive transfer experiments demonstrate that skin Treg regulate EC differentiation, minimizes mutational load and retrains cancer development following exposure to an environmental carcinogen. Our findings indicate an important role for direct EC-Treg cross-talk as an early checkpoint to contain tissue damage and carcinogenesis.

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Project description:The IL-33 receptor ST2 is differentially expressed by colonic lamina propria Treg cells Microarray of sort-purified Foxp3+ Treg cells from colonic lamina propria over mesenteric lymph node

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Transcriptional profile of Foxp3+ regulatory T cells from colon lamina propria and mesenteric lymph node in steady state mice

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2016-01-12 | E-GEOD-76722 | biostudies-arrayexpress

Inflammation-dependent differentiation of two distinct regulatory T cell populations in the visceral adipose tissue shapes systemic metabolism [RNA-seq III]

Project description:Visceral adipose tissue (VAT) is an endocrine organ critical for energy storage and metabolic homeostasis. Its function, at least in part, is controlled by immune cells, including Foxp3+ regulatory T (Treg) cells, which restrain VAT inflammation and glucose intolerance. Here we uncover that the VAT harbours two distinct Treg cell populations, prototypical ST2+ Treg cells, that are enriched in males and depend on the cytokine IL-33 and the transcription factor PPAR and a previously uncharacterized population of VAT Treg cells that express the chemokine receptor CXCR3+, are enriched in females and depend on the transcription factor T-bet. We further show that the transcription factor GATA3 promoted differentiation of ST2+ VAT Treg cells and together with PPAR and IL-33 repressed the differentiation of CXCR3+ Treg cells. CXCR3+ VAT Treg cells developed from naïve Treg cells in a cytokine IFN- dependent manner. Finally, we demonstrate that ST2+ Treg cells promoted glucose tolerance, while CXCR3+ Treg cells limited VAT inflammation in a sex specific manner. This study for the first time establishes how inflammation determines the developmental trajectories of two functionally and molecularly distinct Treg cell types in the VAT.

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Inflammation-dependent differentiation of two distinct regulatory T cell populations in the visceral adipose tissue shapes systemic metabolism [RNA-seq I]

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Inflammation-dependent differentiation of two distinct regulatory T cell populations in the visceral adipose tissue shapes systemic metabolism [RNA-seq II]

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2022-03-31 | GSE173249 | GEO

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