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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Genome-wide detection of STAT6 binding sites in IL-4 treated naive human CD4+ T cells

ABSTRACT: STAT6 is a major transcription factor driving the polarization of Th2 cells in response to IL-4. STAT6 is phosphorylated by Jak1 and Jak3 kinases at the IL-4 receptor, after which phosphorylated STAT6 forms a homodimer and translocates into the nucleus. There STAT6 binds to specific DNA sequences, regulating the transcription of its target genes. Here we have analyzed on a genome wide level the STAT6 binding sites, after 1h and 4h of IL-4 induction, in naive human CD4+ T cells. Keywords: SRA Altogether 5 samples from 1 biological replicate were analyzed. Activated and IL-4 treated samples were compared to only activated or untreated samples to identify unique STAT6 binding sites after IL-4 induction.

ORGANISM(S): Homo sapiens

SUBMITTER: Henna KallionpM-CM-$M-CM-$

PROVIDER: E-GEOD-17850 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Genome-wide profiling of interleukin-4 and STAT6 transcription factor regulation of human Th2 cell programming.

Elo Laura L LL Järvenpää Henna H Tuomela Soile S Raghav Sunil S Ahlfors Helena H Laurila Kirsti K Gupta Bhawna B Lund Riikka J RJ Tahvanainen Johanna J Hawkins R David RD Oresic Matej M Lähdesmäki Harri H Rasool Omid O Rao Kanury V KV Aittokallio Tero T Lahesmaa Riitta R

Immunity 20100601 6

Dissecting the molecular mechanisms by which T helper (Th) cells differentiate to effector Th2 cells is important for understanding the pathogenesis of immune-mediated diseases, such as asthma and allergy. Because the STAT6 transcription factor is an upstream mediator required for interleukin-4 (IL-4)-induced Th2 cell differentiation, its targets include genes important for this process. Using primary human CD4(+) T cells, and by blocking STAT6 with RNAi, we identified a number of direct and ind ...[more]

PMID: 20620947

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Stat6 mediated regulation of transcription to initiate Th2 program in human T cells

Project description:This SuperSeries is composed of the following subset Series: GSE17850: Genome-wide detection of STAT6 binding sites in IL-4 treated naive human CD4+ T cells GSE17851: Genome-wide analysis of STAT6 target genes in IL-4 treated human cord blood CD4+ cells GSE17974: Genome-wide analysis of early transcriptional events induced by cytokine IL-4 in human cord blood CD4+ T cells Refer to individual Series

2010-06-24 | E-GEOD-18017 | biostudies-arrayexpress

Genome-wide detection of STAT3 binding sites in human Th17 cells

Project description:STAT3 is a major transcription factor driving the polarization of Th17 cells in response to IL-6, TGF-Î² and IL1-Î². STAT3 is phosphorylated and forms a homodimer and translocates into the nucleus. There STAT3 binds to specific DNA sequences, regulating the transcription of its target genes. Here we have analyzed on a genome wide level the STAT3 binding sites, after 0.5h and 4h of IL-6, TGF-Î² and IL1-Î² induction, in naive human CD4+ T cells. Altogether 2 samples from 1 biological replicate were analyzed.

2017-05-03 | E-GEOD-67183 | biostudies-arrayexpress

Genome-wide analysis of STAT6 target genes in IL-4 treated human cord blood CD4+ cells

Project description:STAT6 is a major transcription factor driving the polarization of Th2 cells in response to cytokine IL-4. Here we have analyzed on a genome wide level the STAT6 mediated gene expression after IL-4 induction in naive human CD4+ T cells. RNAi mediated STAT6 knockdown was used to reveal the genes specifically regulated by STAT6. Total RNA from STAT6 siRNA treated cord blood CD4+ T cells 12, 24, 48 or 72 hours after culturing the cells in activating (antiCD3+antiCD28) plus or minus IL-4 conditions was compared to total RNA from nonspecific control siRNA treated cells. All together 18 samples were analyzed and 3 biological replicates of the culture were performed for a total of 54 samples.

2010-07-29 | E-GEOD-17851 | biostudies-arrayexpress

Gene array for identifying molecules involved in IL-10 regulation during Th17 polarization

Project description:IL-10 production by Th17 cells is critical for limiting autoimmunity and inflammatory responses. Gene array analysis on Stat6 and T-bet double deficient Th17 cells identified the Th2 transcription factor c-Maf to be synergistically up-regulated by IL-6 plus TGFbeta, and associated with Th17 IL-10 production. Both c-Maf and IL-10 induction during Th17 polarization depended on Stat3, but not Stat6 or Stat1, and mechanistically differed from IL-10 regulation by Th2 or IL-27 signals. TGFbeta was also synergistic with IL-27 to induce c-Maf, and induced Stat1 independent IL-10 expression in contrast to IL-27 alone. Retroviral transduction of c-Maf was able to induce IL-10 expression in Stat6 deficient CD4 and CD8 T cells, and c-Maf directly transactivated IL-10 gene expression through binding to a MARE motif in the IL-10 promoter. Together, these data reveal a novel role for c-Maf in regulating T effector development, and suggest that TGFbeta may antagonize Th17 immunity by IL-10 production through c-Maf induction. Our recent studies showed that IL-6 combined with TGFbeta differed from IL-6 combined with IL-23 for IL-10 production and pathogenic activities in CD4 T cells deficient in Stat6 and T-bet, despite similar IL-17 production. We performed gene array analysis on Stat6 and T-bet double deficient cells. We rationalized that by comparing gene expression in cells treated with IL-6 plus TGFbeta versus TGFbeta alone, we would be able to identify genes specific for standard Th17 polarization, and responsible for both IL-17 and IL-10 expression. By next comparing gene expression in cells treated with IL-6 plus TGFbeta versus IL-6 plus IL-23, we could eliminate molecules involved solely in IL-17 regulation, and obtain genes specifically responsible for IL-10 regulation.

2009-03-03 | E-GEOD-15029 | biostudies-arrayexpress

Identification of novel STAT6-regulated proteins in mouse B cells by comparative transcriptome and proteome analysis

Project description:IL-4/STAT6-regulated transcriptome and proteome were compared in primary B cells isolated from wild-type and STAT6-deficient mice. B cells were purified from the spleen and stimulated in vitro with anti-CD40 and LPS or anti-IgM-F(ab)2 in the presence or absence of IL-4. Transcriptome analysis was performed with oligonucleotide microarrays. Global relative quantification of proteins was achieved by gel-enhanced label-free liquid chromatography/mass spectrometry (LC/MS). Hierarchical clustering and principal component analysis revealed that IL-4-induced changes of the transcriptome were almost completely dependent on STAT6. In contrast, the quantitative proteome analysis revealed that the expression of many IL-4-regulated proteins changes even in the absence of STAT6. The top 75 proteins with changes in abundance levels induced by IL-4 in a STAT6-dependent manner were also found to be regulated at the transcriptional level. Most of these proteins were not previously known to be regulated by STAT6 in B cells. We confirmed the MS-based quantitative proteome data by flow cytometric and Western blot analysis of selected proteins. This study provides a framework for further functional characterization of STAT6-regulated proteins in B cells that might be involved in germinal center formation and class switch recombination.

2017-03-06 | PXD005224 | Pride

RNA-seq of IL-4 stimulated human keratinocytes

Project description:In this study we aim to determine the role of IL-4/STAT6 in gene expression in human keratinocytes using RNA-sequencing approach. Human keratinocytes were cultured for 2 or 5 days with calcium chloride to induce terminal differentiation as determined by the expression of epidermal differentiation complex genes. The cells were then stimulated with IL-4 for 3 and 24 hours, or along the 5 days culture period. We observed that IL-4 inhibits fully differentiation of keratinocytes, induces genes involved with production of inflammatory mediators, and reduces the healing capacity of human keratinocytes. Moreover, STAT6 controlled important genes involved with calcium binding, inflammation and epidermis development. Human keratinocytes were differentiated with calcium chloride for 2 days and incubated with media alone or 20ng/ml of recombinant human IL-4 for 3 and 24 hours. Human keratinocytes were differentiated with calcium chloride for 5 days with or wihout recombinant human IL-4 (20ng/ml). Keratinocytes transfected with control or STAT6 siRNA were differentiated with calcium chloride for 2 days and then stimulated with recombinant huma IL-4 for 24 hours.

2015-12-15 | E-GEOD-59275 | biostudies-arrayexpress

Genome-wide detection of STAT6 binding sites in IL-4 treated naive human CD4+ T cells

Project description:STAT6 is a major transcription factor driving the polarization of Th2 cells in response to IL-4. STAT6 is phosphorylated by Jak1 and Jak3 kinases at the IL-4 receptor, after which phosphorylated STAT6 forms a homodimer and translocates into the nucleus. There STAT6 binds to specific DNA sequences, regulating the transcription of its target genes. Here we have analyzed on a genome wide level the STAT6 binding sites, after 1h and 4h of IL-4 induction, in naive human CD4+ T cells. Keywords: SRA

2010-06-25 | GSE17850 | GEO

Genome-wide detection of STAT6 binding sites in IL-4 treated naive human CD4+ T cells

2010-06-25 | GSE17850 | GEO

EZH2 and BCL6 cooperate to assemble CBX8-BCOR Polycomb complex to repress bivalent promoters, mediate germinal center formation and promote lymphomagenesis [ChIP-seq]

Project description:The EZH2 histone methyltransferase mediates the humoral immune response and drives lymphomagenesis through de novo formation of bivalent chromatin domains at critical germinal center (GC) B cell promoters. Herein we show that the actions EZH2 in driving GC formation and lymphoma precursor lesions are dependent on the presence of the BCL6 transcriptional repressor, both of which are in turn dependent on the presence of non-canonical PRC1-BCOR complex. BCL6-BCOR complexes assemble preferentially at bivalent promoters in an H3K27me3-dependent manner. We observe specific induction of the CBX8 chromodomain protein in GC B cells. CBX8 binds to H3K27me3 at bivalent promoters and is required for stable association of BCOR complex and its histone modifications. CBX8 loss of function in B cells phenocopies loss of EZH2 and H3K27me3. Moreover, oncogenic BCL6 and EZH2 cooperate to accelerate diffuse large B cell lymphoma (DLBCL) development and combinatorial targeting of these repressors results in enhanced anti-lymphoma activity in vitro, in vivo and in primary human DLBCLs. KDM2B ChIP-sequencing of OCI-Ly1 cells

2016-07-20 | E-GEOD-81623 | biostudies-arrayexpress

Dynamic interactions of RNA binding proteins to human cytokine mRNA govern T cell responses

Project description:Effective T cell responses against infections and tumors depend on the production of effector molecules, including the key pro-inflammatory cytokines IFN-γ, TNF-α and IL-2. Recent studies revealed that post-transcriptional events determine the magnitude and duration of cytokine production in T cells, a feature that is largely defined by RNA-binding proteins (RBPs). However, to date the interplay of RBPs with cytokine mRNA, and their mode of action are ill-defined. Here we employed an RNA-aptamer-based capture assay from human T cell lysates to map RBP interactions with the full length 3’untranslated regions of IFNG, TNF and IL2. We found that RBPs binding can be both promiscuous and cytokine-specific. Furthermore, the RBP binding landscape rapidly alters upon T cell activation. Genetic deletion of confirmed mRNA interactors uncovered RBP-specific activity in primary T cells in response to target cells. Thus, RBPs are critical determinants of fast but tightly controlled cytokine production in T cells.

2023-04-20 | PXD028171 | Pride

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