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An IL-23R/IL-22 circuit regulates epithelial serum amyloid A to promote local effector Th17 responses II [RNA-Seq]

ABSTRACT: Purpose: The goals of this study are to compare in vitro polarized T helper 17 cell transcriptome profiling (RNA-seq) in the presence or absence of recombinant murine SAA1 Methods: Th17 mRNA profiles of 96hrs in vitro cultured T helper 17 cells treated with vehicle or recombinant murine SAA1 were generated by deep sequencing, using Illumina RapidRun. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: Burrows–Wheeler Aligner (BWA) and TopHat followed by CuffDiff. qRT–PCR validation was performed using SYBR Green assays. Results: 177 genes were changed more than 2 folds in the presence of recombinant murine SAA1. Conclusions: Our study suggest that SAA1 could augment subset of Th17 transcription program in vitro.

ORGANISM(S): Mus musculus

PROVIDER: GSE71281 | GEO | 2015/10/09

SECONDARY ACCESSION(S): PRJNA290796

REPOSITORIES: GEO

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Retinal pigment epithelial cells suppress interleukin-17-producing T-helper 17 cells

Project description:T cells that encounter cultured ocular pigment epithelial cells in vitro are inhibited from undergoing T cell receptor-triggered activation. Because retinal pigment epithelial (RPE) cells are able to suppress T-cell activation, we studied whether RPE cells could suppress cytokine production by activated T helper (Th) cells. In this study we showed that primary cultured RPE cells greatly suppressed activation of bystander CD4+ T cells in vitro, especially the cytokine production by the target T helper cells (Th1 cells, Th2 cells, Th17 cells, but not Th3 cells). Cultured RPE cells and RPE-supernatants significantly suppressed IL-17 producing CD4+ T cells, and RPE cells fully suppressed polarized Th17 cell lines that induced by recombinant proteins, IL-6 and TGFb2. Moreover, RPE cells failed to suppress IL-17 producing T cells in the presence of rIL-6. In addition, Th17 cells exposed to RPE were suppressed via TGFb, which produce RPE cells. These results indicate that retinal PE cells have immunosuppressive capacity in order to inhibit Th17-type effector T cells. Thus, ocular resident cells play a role in establishing immune regulation in the eye. Retinal pigment epithelium suppresses Th17 cells

2012-07-11 | E-GEOD-22877 | biostudies-arrayexpress

Retinal pigment epithelial cells suppress interleukin-17-producing T-helper 17 cells

2012-07-12 | GSE22877 | GEO

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

CIP2A negatively regulates Th17 differentiation

Project description:Interleukin 17 (IL-17) producing T helper 17 (Th17) cells are critical drivers of pathogenesis in a variety of autoimmune and inflammatory diseases. Strategies to mitigate excessive Th17 response thus remain an attractive target for immunotherapies. Here we report that Cancerous Inhibitor of Protein Phosphatase 2A (CIP2A) regulates IL-17 production by Th17 cells in human and mouse. Using CIP2A knock-out (KO) mice and siRNA-mediated CIP2A silencing in human primary CD4+ T cells, we demonstrated that CIP2A silencing results in a significant increase in IL-17 production. Interestingly, CIP2A deficient Th17 cells were characterized by increased strength and duration of STAT3 (Y705) phosphorylation. Genome-wide gene expression profile as well as the p-STAT3 (Y705) interactome of CIP2A deficient Th17 cells identified that CIP2A regulates the strength of the interaction between Acylglycerol kinase (AGK) and STAT3, and thereby, modulates STAT3 phosphorylation as well as expression of IL-17 in Th17 cells. Our results uncover the physiological function of CIP2A in Th17 cells and provides new opportunities for therapeutic intervention in Th17 cell mediated diseases.

2020-05-26 | PXD010612 | Pride

Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type, DDX5 knockout, RORc knockout, RmrpG262T knockin T helper 17 cell Transcriptomes [RNA-seq]

Project description:Purpose: The goals of this study are to compare in vitro polarized T helper 17 cell transcriptome profiling (RNA-seq) in different genetic background. Methods: Th17 mRNA profiles of 96hrs in vitro cultured T helper 17 cells from wild-type and mutant mice were generated by deep sequencing, using Illumina RapidRun. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: BurrowsâWheeler Aligner (BWA) and TopHat followed by CuffDiff. qRTâPCR validation was performed using SYBR Green assays. Results: Among the 325 genes that were significantly dysregulated in DDX5-deficient T cells, approximately 40% were previously identified as RORÎ³t targets in Th17 cells. 96 RORÎ³t-dependent Th17 cell genes co-regulated by Rmrp together with DDX5. Conclusions: Our study suggest that the DDX5-Rmrp axis is critical for expression of a critical subset of the RORÎ³t transcriptional targets in Th17 cells. mRNA profiles of 96hr in vitro cultured Th17 from wild type (WT) and mutant mice were generated by deep sequencing using Illumina RapidRun.

2015-12-21 | E-GEOD-70108 | biostudies-arrayexpress

Expression data from the aortas of ApoE knockout and ApoE/IL-17 double knockout mice

Project description:Interleukin-17 (IL-17)-secreting T helper 17 cells (Th17) are a recently identified CD4+ T helper subset that has been implicated in various inflammatory and autoimmune diseases. The issue of whether interleukin-17A (IL-17) contributes to hyperlipidemia-induced aortic endothelial cell activation remained unknown. Here, we reported that IL-17 contributes to hyperlipidemia-induced modulation of vascular cell gene expression during early atherosclerosis in vivo. Our results has shed lights onto the role of IL-17 on EC biology and has provided important insights for future development of novel therapeutics for early intervention of cardiovascular diseases and other inflammatory diseases.

2015-10-11 | GSE73907 | GEO

Temporal programming of T-helper 17 (TH17) cell differentiation by SAA1+IL6 measured by RNA-Seq

Project description:Temporal programming of T-helper 17 (TH17) cell differentiation by SAA1+IL6 measured by RNA-Seq

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IL-17 cytokines preferentially act on naïve CD4+ T cells

Project description:CD4+ Th17 T cells are a key helper population in the regulation of both protective immunity during infection and in self-tolerance. Through the secretion of IL-17, Th17 cells act in promotion of inflammation and thus a major therapeutic target for autoimmune disorders. Recent reports have brought to light that the IL-17 family cytokines, IL-17A, IL-17F and IL-17AF, can directly act on CD4+ T-cells, both in murine and human systems. Here we show that this action is preferentially targeted toward naïve, but not memory, CD4+ T-cells. Moreover, IL-17A, IL-17F and IL-17AF led to reduction in immune signaling genes, but an increase in interferon responsive genes across all treatments. In addition, IL-17A, IL-17F and IL-17AF treatment possessed differences in downstream transcriptional signaling, with IL-17AF heterodimer conferring both the greatest transcriptional change and suppressed phenotype. Detailed transcriptome analysis provides important functional insights into the genes and pathways that are modulated as a result of IL-17-mediated signaling.

2022-10-03 | GSE159406 | GEO

LKB1/STK11-sensing of mitochondrial function controls Th17 cell responses

Project description:T helper 17 (Th17) cells are a distinct subset of CD4+ T cells necessary for maintaining gut homeostasis and have prominent roles in autoimmunity and inflammation. Th17 cells have unique metabolic features, including a stem cell-like signature and reliance on mitochondrial respiratory chain function and tricarboxylic acid (TCA) cycle to coordinate metabolic and epigenetic remodeling. Dynamic changes in mitochondrial membrane morphology are key to sustain organelle function. However, it remains unclear whether mitochondrial membrane remodeling orchestrates metabolic and differentiation events in Th17 cells. Here we demonstrate that mitochondrial membrane fusion and tight cristae organization are required for Th17 cell function (i.e. cytokine expression). As a genetic model system we employ Th17 specific deletion of optic atrophy 1 (OPA1), a gene that encodes a protein involved in mitochondrial inner membrane fusion and cristae organization. As a result, we find that Th17 cells rely on mitochondrial fusion (due to their low metabolic activity). Here, we carry out DIA-based differential quantitative proteomic analysis of murine wild-type and OPA1 knock-out Th17 cells. Through Ingenuity pathway analysis and together with transcriptional and metabolomic profiling we identify the serine/threonine kinase liver associated kinase B1 (LKB1/STK11) as an essential node coupling mitochondrial function to IL-17A cytokine expression in T cells.

2022-10-13 | PXD036162 | Pride

Next Generation Sequencing Facilitates Quantitative Analysis of RNAs bound by DDX5 and RORgt in cultured T helper 17 cell [RIP-seq]

Project description:Purpose: The goals of this study are to compare RNAs bound by DDX5 and RORgt in cultured T helper 17 cell in wildtype background. Methods: Th17 mRNA profiles of 48hrs in vitro cultured T helper 17 cells from wild-type mice were generated by deep sequencing, using Illumina HighSeq. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: BurrowsâWheeler Aligner (BWA) and TopHat followed by CuffDiff. qRTâPCR validation was performed using SYBR Green assays. Results: Among the 3444 RefSeq non-coding RNAs and 46449 NONCODE non-coding RNAs, 2533 were found to be expressed in Th17 cells (FPKM>1). 210 of them were enriched in DDX5 pull-down and 119 of them were enriched in RORgt pull-down. Conclusions: Our study suggest that a subset of 31 ncRNAs were co-enriched in DDX5 and RORgt pull-down. DDX5 or RORgt-associated-RNA profiles of 48hr in vitro cultured Th17 from wild type (WT) mice were generated by deep sequencing using Illumina HighSeq

2015-12-21 | E-GEOD-70109 | biostudies-arrayexpress

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