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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.

ORGANISM(S): Mus musculus

PROVIDER: GSE40726 | GEO | 2012/09/13

SECONDARY ACCESSION(S): PRJNA174766

REPOSITORIES: GEO

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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. Two-condition experiment, IRF4 -/- vs IRF4 +/- Th17 cells at 42hrs. Biological replicates: 3 for each condition

2012-09-13 | E-GEOD-40726 | 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

Gene expression analysis of Akt2 deficient murine naive CD4 T cells cultured in Th17-polarizing conditions for 36 hours

Project description:Akt1 and Akt2, isoforms of the serine threonine kinase Akt, are essential for T cell development. However, their role in peripheral T cell differentiation remains undefined. Using mice with germline deletions of either Akt1 or Akt2, we found that both isoforms are important for Th17 differentiation, although Akt2 loss had a greater impact than Akt1. To better understand the consequences of Akt2 deficiency in the setting of in vitro Th17 differentiation, we used microarray analysis to compare the transcriptional landscape of Akt2â/â and WT cells that had been cultured in Th17 polarizing conditions for 36 hours.

2016-07-03 | E-MTAB-4062 | biostudies-arrayexpress

Elucindating the role of the transcription factor IRF4 in Th17 and Treg cells

Project description:- transcription factor interferon regulatory factor 4 (IRF4) = crucial transcription factor for different immune cells, incl pro-inflammatory Th17 and anti-inflammatory Treg cells - IRF4 is essential for the cell differentiation and fate determination - however molecular mechanisms of IRF4-mediated gene expression in fully differentiated Th17/Treg cells are still not fully understood - integration of data derived from affinity-purification and full mass spectrometry-based proteome analysis with chromatin immune precipitation sequencing (ChIP-Seq) - characterization of proteins generally involved in the T cell development as well as subtype-specific differentiation and identification of novel, yet uncharted IRF4 interactors

2024-08-02 | PXD044298 | JPOST Repository

Mouse gene expression in wild-type Th17 cells and Pten deficient Th17 cells

Project description:Transcriptional profiling of mouse Th17 cells comparing WT Th17 cells with Pten-deficient Th17 cells. Naïve CD4 T cells from each mice were cultured Th17 polarizing condition for 3 days. Goal was to determine the effects of Pten on global gene expression.

2017-08-10 | GSE102414 | GEO

An AKBA derivative (CKBA) regulates mRNA expression of naive mouse CD4+ T cells in vitro under TH17-polarizing conditions

Project description:The goal of this study was to determine the effects of CKBA on mRNA expression of naive mouse CD4+ T cells under TH17-polarizing conditions in vitro.

2018-11-07 | GSE122210 | GEO

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

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

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

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

2013-12-03 | GSE40623 | GEO

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