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Thymic development of type-17 innate-like T cells depends on a PTEN-coordinated two-step process linking TCR and IL-23–IL-23R–Stat3 axis

ABSTRACT: PTEN orchestrates a two-step process downstream of TCR and IL-23–Stat3 signaling to control type-17 innate-like T cell generation. Complete or partial deletion of PTEN led to the massive and selective accumulation of IL-17-producing thymocytes We used microarrays to compare the global transcription profiles of WT, Cd4CrePtenfl/fl, and Cd4CrePten+/fl thymocyte population

ORGANISM(S): Mus musculus

PROVIDER: GSE152294 | GEO | 2022/10/04

REPOSITORIES: GEO

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Mouse Th17 T cells, IL-23 stimulated

Project description:Interleukin 23 (IL-23) triggers pathogenic features in pro-inflammatory, IL-17-secreting T cells (Th17 and Tγδ17) that play a key role in the development of inflammatory diseases. However, the IL-23 signaling cascade remains largely undefined. Here we used quantitative phosphoproteomics to characterize IL-23 signaling in primary murine Th17 cells. We quantified 6,888 phosphorylation sites in Th17 cells, and found 168 phosphorylations regulated upom IL-23 stimulation. IL-23 increased the phosphorylation of the myosin regulatory light chain (RLC), an actomyosin contractibility marker, in Th17 and Tγδ cells. IL-23-induced RLC phosphorylation required JAK2 and ROCK catalytic activity, and the study of the IL-23/ROCK axis revealed an unexpected role of IL-23 in the migration of Tγδ17 and Th17 cells. Moreover, pharmacological inhibition of ROCK reduced Tγδ17 recruitment to inflamed skin upon challenge with inflammatory agent Imiquimod. This work: i) provides new insights into phosphorylation networks that control Th17 cells, ii) widely expands the current knowledge on IL-23 signaling, and iii) contributes to the increasing list of immune cells subsets characterized by global phosphoproteomic approaches.

2020-03-25 | PXD016633 | Pride

Bulk RNA-seq of interleukin-23 receptor (IL-23R) -deficient and IL-23R-sufficient colonic mouse regulatory T cells

Project description:To define the IL-23R-dependent changes in intestinal regulatory T cells (Treg cells) that might contribute to the impact on Treg cell function and selective advantage

2023-02-17 | GSE208621 | GEO

Differential role of IL-23 and IL-17 in intestinal regulation

Project description:Interleukin-23 (IL-23) and IL-17 are cytokines currently being targeted in clinical trials. Although inhibition of these cytokines is effective for treating psoriasis, IL-12/23 inhibition attenuates Crohn's disease, while IL-17A or IL-17RA inhibition exacerbates disease. This dichotomy between IL-23 and IL-17 was effectively modeled in the mdr1a- /- mouse model of colitis. IL-23 inhibition attenuated disease by decreasing colonic inflammation while enhancing Treg accumulation. Exacerbation of colitis by IL-17A or IL-17RA inhibition was associated with severe weakening of the intestinal epithelial barrier, culminating in increased colonic inflammation and accelerated mortality. These data show that IL-17A acts on intestinal epithelium to promote barrier function and provides insight into mechanisms underlying exacerbation of Crohn's disease when IL-17A or IL-17RA is inhibited.

2015-08-20 | GSE72212 | GEO

IL-23 receptor (IL-23R) gene protects against pediatric Crohn's disease.

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Evaluation of interleukin-23 receptor (IL-23R) gene polymorphisms and serum IL-23 levels in patients with psoriasis

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Interleukin-23 receptor (IL-23R) gene polymorphisms in acquired aplastic anemia.

Project description: Not available

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IL-36 signaling in keratinocytes controls early IL-23 production in Aldara®-induced skin inflammation in mice

Project description:IL-36R signaling plays an important role in the pathogenesis of psoriasis. We ought to assess the specific function of IL-36R in keratinocytes for the pathology of Aldara®-induced psoriasis-like skin inflammation. Il36r-/- (KO) and Il36rΔK (DK) mice as well as their littermate controls, respectively Il36r+/+ (WT) and Il36rfl/fl (FL) mice, were challenged with the topical application of Aldara® on one ear during 3 or 7 days. RNASeq was performed on treated (AL) and untreated (CT) ears. Fold change analysis combined with RPKM and RT-qPCR allowed us to identify genes which were specifically regulated by IL-36R signaling in keratinocytes during the course of the treatment. We notably demonstrated that both IL-23 subunits (Il23a and Il12b) fell into this category.

2020-04-23 | GSE143688 | GEO

IL-23 promotes immunopathology and prevents IL-13-dependent tissue repair by Ly6Clo monocytes in parasite-induced liver damage

Project description:Background & Aims: The IL-23/IL-17 axis plays an important role in the pathogenesis of autoimmune diseases and the pathological consequences of infection. We previously showed that immunopathologic mechanisms mediated by inflammatory monocytes underlie the severe focal liver damage induced by the protozoan parasite, Entamoeba histolytica. Here, we analyze the contribution of the IL-23/IL-17 axis to the induction and subsequent recovery from parasite-induced liver damage. Methods: IL-23p19-/-, IL-17A/F-/-, CCR2-/-, and WT mice were intra-hepatically infected with E. histolytica trophozoites and disease onset and recovery were analyzed by magnetic resonance imaging. The expression of liver-specific genes and proteins during infection was examined by qPCR, microarray, FACS analysis and immunohistochemistry. Immuno-depletion and substitution experiments were performed in IL-23p19-/- and WT mice to investigate the role of IL-13 in disease outcome. Results: Liver damage in infected IL-23p19-/-, IL-17A/F-/-, CCR2-/- mice was strongly attenuated compared with that in WT mice. IL-23p19-/- mice showed reduced expression of IL-17 and CCL2 genes and proteins. Increased numbers of IL-13-producing CD11b+Ly6Clo regenerative monocytes were associated with disease attenuation in IL-23p19-/- mice. Immuno-depletion of IL-13 in IL-23-/- mice reversed this attenuation and treatment of infected WT mice with an IL-13/anti-IL-13-mAb complex supported liver recovery. Conclusions: The IL-23/IL-17 axis plays a critical role in the immunopathology of hepatic amebiasis. IL- 13 secreted by CD11b+Ly6Clo monocytes supports recovery from liver damage. An IL-13/anti-IL13- mAb complex mimics this function, suggesting a novel therapeutic option to support tissue healing after liver damage.

2016-10-03 | GSE73686 | GEO

IL-1beta, IL-23, and TGF-beta drive plasticity of human ILC2s towards IL-17-producing ILCs in nasal inflammation

Project description:Innate lymphoid cells (ILCs) are crucial for the immune surveillance at mucosal sites. ILCs coordinate early eradication of pathogens and contribute to tissue healing and remodelling, features that are dysfunctional in patients with cystic fibrosis (CF). The mechanisms by which ILCs contribute to CF-immunopathology are ill-defined. Here, we report that group 2 ILCs (ILC2s) transdifferentiated into IL-17-secreting cells in the presence of the epithelial derived-cytokines IL-1β, IL-23 and TGF-β. This conversion was abrogated by IL-4 or vitamin D3. IL-17 producing ILC2s induced IL-8 secretion by epithelial cells and their presence in nasal polyps of CF patients is associated with neutrophilia. Our data suggest that ILC2s undergo transdifferentiation in CF nasal polyps in response to local cytokines, which are induced by infectious agents.

2019-03-26 | GSE124926 | GEO

Follicular B (FoB) cells purified from miR-17-92 tKO mice, stimulated with LPS/IL-4, 13.5hr

Project description:We have generated a miR-17~92 fl/fl allele whose expression can be turned off conditionally by Cre recombinase in the miR-106a-363-/-;miR-106b-25-/- background. The mice were crossed to CD19-Cre mice to turn off the expression of miR-17~92 specifically in B cells and stimulated LPS/IL-4 for 13.5hr.

2014-04-01 | GSE56378 | GEO

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