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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcriptional profiling of IRF4 -/- vs IRF4 +/- T-cells under Th17 polarizing conditions

ABSTRACT: Transcriptional profiling of T-cells isolated from spleen of IRF4 -/- mice and cultured under Th17 polarizing conditions for 42 hrs compared to cells similarly isolated and cultured from spleen of IRF4 +/- mice. The aim of the study was to identify global misexpression of genes in IRF4 -/- cells and hence identify key pathways regulated by IRF4 during Th17 differentiation. Two-condition experiment, IRF4 -/- vs IRF4 +/- Th17 cells at 42hrs. Biological replicates: 3 for each condition

ORGANISM(S): Mus musculus

SUBMITTER: Smita Agrawal

PROVIDER: E-GEOD-40726 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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A genomic regulatory element that directs assembly and function of immunespecific AP-1-IRF complexes

Project description:This SuperSeries is composed of the following subset Series: GSE40726: Transcriptional profiling of IRF4 -/- vs IRF4 +/- T-cells under Th17 polarizing conditions GSE40727: ChIPseq analysis of IRF4 and BATF in immune cells Refer to individual Series

2012-09-13 | E-GEOD-40483 | biostudies-arrayexpress

ChIPseq analysis of IRF4 and BATF in immune cells

Project description:Purpose: The purpose of this study is to find the binding partner of IRF4 in the context of Th17- cell differentiation. To this end, we have used ChIPseq analysis followed by de novo motif search around genome-wide binding sites to identify BATF as the binding partner for IRF4 in the context of not only Th17 cells but other immune cell types as well. Naïve T-cells isolated from the spleen of C57BL/6J mice are cultured under Th17, Th2 or Th0 polarizing conditions for 42 hrs and subject to ChIP using IRF4 and/or BATF antibodies followed by high-throughput sequencing. Bone marrow derived dendritic cells (BMDCs) were stimulated with LPS for 6hrs and similrly subjected to ChIPseq analysis with IRF4.

2012-09-13 | E-GEOD-40727 | biostudies-arrayexpress

Transcriptional profiling of IRF4 -/- vs IRF4 +/- T-cells under Th17 polarizing conditions

Project description:Transcriptional profiling of T-cells isolated from spleen of IRF4 -/- mice and cultured under Th17 polarizing conditions for 42 hrs compared to cells similarly isolated and cultured from spleen of IRF4 +/- mice. The aim of the study was to identify global misexpression of genes in IRF4 -/- cells and hence identify key pathways regulated by IRF4 during Th17 differentiation.

2012-09-13 | GSE40726 | GEO

BATF-JUN is critical for IRF4-mediated transcription in T cells

Project description:Interferon regulatory factor 4 (IRF4) is an IRF family transcription factor with critical roles in lymphoid development and in regulating the immune response. IRF4 binds DNA weakly owing to a carboxy-terminal auto-inhibitory domain, but cooperative binding with factors such as PU.1 or SPIB in B cells increases binding affinity, allowing IRF4 to regulate genes containing ETS–IRF composite elements (EICEs; 5'-GGAAnnGAAA-3'). Here we show that in mouse CD4+ T cells, where PU.1/SPIB expression is low, and in B cells, where PU.1 is well expressed, IRF4 unexpectedly can cooperate with activator protein-1 (AP1) complexes to bind to AP1–IRF4 composite (5'-TGAnTCA/GAAA-3') motifs that we denote as AP1–IRF composite elements (AICEs). Moreover, BATF–JUN family protein complexes cooperate with IRF4 in binding to AICEs in pre-activated CD4+ T cells stimulated with IL-21 and in TH17 differentiated cells. Importantly, BATF binding was diminished in Irf4-/- T cells and IRF4 binding was diminished in Batf-/- T cells, consistent with functional cooperation between these factors. Moreover, we show that AP1 and IRF complexes cooperatively promote transcription of the Il10 gene, which is expressed in TH17 cells and potently regulated by IL-21. These findings reveal that IRF4 can signal via complexes containing ETS or AP1 motifs depending on the cellular context, thus indicating new approaches for modulating IRF4-dependent transcription. Genome-wide transcription factors mapping and binding of IRF4, BATF, IRF8, STAT3, JUN etc in WT, Irf4-/- and Batf-/- mice in different cell types (B cells, CD4+ T cells and TH17 cells) cultured with or without IL-21 was conducted. RNA-Seq is conducted in mouse B cells, CD4+ T cells, TH1/TH2/TH9/TH17/Treg.

2012-09-18 | E-GEOD-39756 | biostudies-arrayexpress

ChIP-Seq for Nkx3-1 in whole mouse prostate

Project description:We report the genome-wide binding sites of the NK homeodomain transcription factor, Nkx3-1, in mouse prostate. Three different mouse genotypes were used: Nkx3-1 wild-type (WT), Nkx3-1 heterozygote (HET), and Nkx3-1 knock-out (KO). Two biological replicates were performed for WT and HET, and one replicate for KO. The mice used were a recombinant inbred C57BL6/J x 129 strain. The KO dataset was used as a control in lieu of an IgG. Examination of Nkx3-1 binding sites in Nkx3-1+/+ (WT), +/- (HET) and -/- (KO) mouse prostates

2012-04-09 | E-GEOD-35971 | biostudies-arrayexpress

ChIPseq analysis of IRF4 and BATF in immune cells

2012-09-13 | GSE40727 | GEO

Genome-wide regulatory analysis reveals T-bet controls Th17 lineage differentiation through direct suppression of IRF4

Project description:The complex relationship between Th1 and Th17 cells is incompletely understood. The transcription factor T-bet is best known as the master regulator of Th1 lineage commitment. However, attention is now focused on the repression of alternate T cell subsets mediated by T-bet, particularly the Th17 lineage. Specifically it has recently been suggested that pathogenic Th17 cells express T-bet and are dependent on IL-23. However, T-bet has previously been shown to be a negative regulator of Th17 cells. We have taken an unbiased approach to determine the functional impact of T-bet on Th17 lineage commitment. Genome-wide analysis of functional T-bet binding sites provides an improved understanding of the transcriptional regulation mediated by T-bet, and suggests novel mechanisms by which T-bet regulates T helper cell differentiation. Specifically, we show that T-bet negatively regulates Th17 lineage commitment via direct repression of the transcription factor interferon regulatory factor-4 (IRF4). An in vivo analysis of the pathogenicity of T-bet deficient T cells demonstrated that Th17 responses were augmented in the absence of T-bet, and we have defined a critical temporal window for T-bet function. The interaction of the two key transcription factors T-bet and IRF4 during the determination of T cell fate choice significantly advances our understanding of the mechanisms underlying the development of pathogenic T cells. ChIP-seq analysis of T-bet in WT and Tbet -/- mice.

2013-12-03 | E-GEOD-40623 | biostudies-arrayexpress

BATF-JUN is critical for IRF4-mediated transcription in T cells

2012-09-18 | GSE39756 | GEO

TESMIN interactome characterization

Project description:We performed immunoprecipitation followed by mass spectrometry (IP-MS) and proximity-dependent biotin identification (BioID) to capture TESMIN interactome.

2023-03-11 | PXD035916 | Pride

Expression data from murine irf4-/- and irf4+/+ mature B cells purified by magnetic cell separation and stimulated with anti-CD40 antibodies and IL-4

Project description:Gene expression profiling of murine irf4-/- and irf4+/+ splenic B cells identifies genes regulated by the transcription factor IRF4 in CD40+IL-4 activated mature B cells. B cells from 12-week old irf4-/- and irf4+/+ littermate mice were isolated by magnetic depletion of non-B cells from splenic mononuclear cells and cultures with mitogens in vitro. RNA was isolated. Labeled cRNA was hybridized to microarrays and genes specifically expressed in irf4-/- vs. irf4+/+ samples.

2015-11-01 | E-GEOD-74287 | biostudies-arrayexpress

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