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Gene expression data from LCMV-specific WT and Ezh2-/- follicular T helper cells

ABSTRACT: Gene expression data from LCMV-specific WT and Ezh2-/- follicular T helper cells

PROVIDER: PRJNA433813 | ENA |

REPOSITORIES: ENA

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Gene expression data from LCMV-specific WT and Ezh2-/- follicular T helper cells

Project description:Microarray experiments were performed to elucidate the transcriptome changes due to EZH2 deficiency in follicular T helper (TFH) cells. These data suggest TFH-lineage associated genes are down-regulated in EZH2-null TFH cells, indicating that EZH2 primes TFH differentiation by regulating canonical genes of TFH cells.

2018-12-25 | GSE110458 | GEO

Transcription profiling of mouse vivo follicular helper CD4 T cells (TFH) versus non follicular helper CD4 T cells (non-TFH)

Project description:Analysis of in vivo antigen-specific (LCMV-specific, SMARTA TCR transgenic) follicular helper CD4 T cells (CXCR5high),versus non-follicular helper CD4 T cells (CXCR5low), eight days after viral infection. A paper including data analysis of these experiments has been accepted for publication (Robert J. Johnston et al. Bcl6 and Blimp-1 are reciprocal and antagonistic regulators of follicular helper CD4 T cell differentiation). Experiment Overall Design: Analysis of in vivo antigen-specific (LCMV-specific, SMARTA TCR transgenic) follicular helper CD4 T cells (CXCR5high), versus non-follicular helper CD4 T cells (CXCR5low), eight days after viral infection.

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Project description:mapping Ezh2 and Tcf1 binding sites in follicular helper T cells

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Project description:Comparison of transcriptome between control and Ezh2-deficient follicular helper T cells

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Genome-wide maps of chromatin state in naïve CD4+ T cells, WT/EZH2-null TFH and TH1 cells

Project description:ATAC-Seq experiments were performed to elucidate the chromatin state changes among naïve CD4+ T cells, WT follicular helper T (TFH) cells and WT type 1 helper T (TH1) cells Day2 (D2), Day5 (D5), Day8 (D8) post-LCMV-Armstrong infection, as well as EZH2-null (KO) TFH and TH1 at Day8 post-LCMV-infection. The analysis suggested stringent lineage-specific mode of chromatin accessibility in each group, indicating chromatin remodeling is tightly associated with TFH versus TH1 lineage differentiation in response to acute viral infection. Furthermore, the comparison between wild-type and EZH2-null TFH cells showed that less-opening state of certain chromatin accessible region in TFH-differentiation associated genes in the formers, suggesting EZH2 led to permissive chromatin accessibility primarily at specific regions of TFH-associated genes. H3K27me3-ChIP-seq was performed in WT TFH and TH1 cells to confirm the deposition of the histone marks at those loci.

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Expression Data from in vivo follicular helper CD4 T cells (TFH) versus non follicular helper CD4 T cells (non-TFH)

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Expression Data from WT and Sh2d1a-/- in vivo follicular helper CD4 T cells (TFH) versus non follicular helper CD4 T cells (non-TFH)

Project description:CD4 T cell help is critical for both the generation and maintenance of germinal centers, and T follicular helper (TFH) cells are the CD4 T cell subset required for this process. SAP (SH2D1A) expression in CD4 T cells is essential for germinal center development. However, SAP-deficient mice have only a moderate defect in TFH differentiation as defined by common TFH surface markers. CXCR5+ TFH cells are found within the germinal center as well as along the boundary regions of T/B cell zones. Here we show that germinal center associated T cells (GC TFH) can be identified by their co-expression of CXCR5 and the GL7 epitope, allowing for phenotypic and functional analysis of TFH and GC TFH populations. Here we show GC TFH are a functionally discrete subset of further polarized TFH cells, with enhanced B cell help capacity and a specialized ability to produce IL-4 in a TH2-independent manner. Strikingly, SAP-deficient mice have an absence of the GC TFH subset and SAP- TFH are defective in IL-4 and IL-21 production. We further demonstrate that SLAM (Slamf1, CD150), a surface receptor that utilizes SAP signaling, is specifically required for IL-4 production by GC TFH. GC TFH cells require IL-4 and IL-21 production for optimal help to B cells. These data illustrate complexities of SAP-dependent SLAM family receptor signaling, revealing a prominent role for SLAM receptor ligation in IL-4 production by germinal center CD4 T cells but not in TFH and GC TFH differentiation. Analysis of in vivo antigen-specific (LCMV-specific, SMARTA TCR transgenic) WT and Sh2d1a-/- follicular helper CD4 T cells (CXCR5high),versus non-follicular helper CD4 T cells (CXCR5low), eight days after viral infection.

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Gene expression data from LCMV-specific Rictor-/- and WT follicular T helper cells

Project description:Microarray experiments were performed to elucidate the transcriptome changes due to Rictor deficiency in follicular T helper (TFH) cells. These data suggest TFH-lineage associated genes are down-regulated in Rictor-null TFH cells, indicating that Rictor primes TFH differentiation by regulating canonical genes of TFH cells.

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Gene expression data from LCMV-specific WT and Tcf7-/- follicular T helper cells

Project description:We did microarray experiments to elucidate the transcriptome changes due to TCF-1 deficiency in Tfh cells. These data clearly demonstrate that Tfh-associated genes were down-regulated in TCF-1-null Tfh cells, whereas Th1-associated signatures were up-regulated, indicating that TCF-1 initiates the Tfh fate by directly strengthening Tfh signatures while suppressing Th1-associated genes. We first sorted WT and TCF-1-null Tfh cells (2 samples per group, each sample was pooled from 4 mice) at day 8 after LCMV Armstrong infection. Then, we extracted RNA, which were subsequently sent to microarray analysis.

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