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Transcriptomic analysis in airway epithelial cells in HDM-sensitized STAT3-WT and STAT3-cKO mice

ABSTRACT: Purpose: To elucidate the roles of airway epithelial STAT3 in allergic airway inflammation. Method: Doxycycline-induced airway epithelial cells-specific STAT3-deficient mice (STAT3-cKO) and their genetic control mice (STAT3-WT) were sensitized intratracheally twice with house dust mite (HDM) extract or PBS at a 7-day interval. Airway epithelial cells were isolated by a cell sorter 48 h after the last senstization. N=2 each. Results: Using an optimized data analysis workflow, 206 transcripts showed differential expression between HDM-treated STAT3-WT and STAT3-cKO with adjusted p value <0.05.

ORGANISM(S): Mus musculus

PROVIDER: GSE190345 | GEO | 2022/04/01

REPOSITORIES: GEO

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Transcriptomic analysis in airway epithelial cells in HDM-sensitized and SCD1 inhibitor-treated or vehicle-treated mice

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Transcriptomic analysis in airway epithelial cells in HDM-sensitized mice

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Expression data from mouse livers lacking STAT3 during pneumonia

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Project description:The aim of this study was to investigate differential expression in a house dust mite (HDM) exposure model of asthma in rhesus macaques. HDM sensitization was performed by subcutaneous injection of HDM followed by intranasal HDM for 2-3 hours twice a week.

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A regulatory CD9+ B cell subset controls HDM-induced allergic airway inflammation

Project description:Background: A specific subset of regulatory IL-10 producing B cells has been extensively studied in autoimmune and inflammatory pathologies. These cells are able to constrain exacerbated inflammation by inhibiting T cell mediated responses and maturation of antigen presenting cells. In allergic diseases, observations that increase of regulatory B cells is necessary for allergen tolerance suggest that development of allergic asthma would be associated with a defect in the regulatory B cells compartment. Objective: We sought to (i) characterize regulatory IL-10+ regulatory B cell subset in Balb/c mice by microarray and flow cytometry and (ii) investigate their regulatory capacity in vivo in a house dust mite model of allergic asthma. Results: We identified an IL-10 producing B cells subset able to control T cell proliferation in vitro in both control and asthmatic mice. This subset is decreased in allergic mice. IL-10+ Breg cells express high levels of CD9 and upregulate CD70 and CD73 after activation. Expression of CD9 allows identifying more than 50% of Bregs. Interestingly CD9+ B cells inhibit TH2-TH17 allergic airway inflammation in vivo after adoptive transfer in an IL-10 dependent manner. Conclusions: Herein, we demonstrate that induction of allergic asthma dampens the generation of Bregs contributing to exacerbated airway inflammation. We identified a distinct CD9+ Breg-cell population decreased in lung of HDM mice and able to control asthma and allergic airway inflammation by producing IL-10 after adoptive transfer. This study points B cells as an interesting therapeutic target in allergic asthma. IL-10+ B cells (n=3) and 3 IL-10- B cells (n=3) in control mice + IL-10+ B cells (n=3) and 3 IL-10- B cells (n=3) from asthmatic allergic (HDM) mice

2015-03-01 | E-GEOD-57772 | biostudies-arrayexpress

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