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Population gene expression of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

ABSTRACT: Population gene expression of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

PROVIDER: PRJNA629332 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11646458_1.fastq.gz	Fastqsanger.gz
	SRR11646458_2.fastq.gz	Fastqsanger.gz
	SRR11646459_1.fastq.gz	Fastqsanger.gz
	SRR11646459_2.fastq.gz	Fastqsanger.gz
	SRR11646460_1.fastq.gz	Fastqsanger.gz

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Population gene expression of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

Project description:Population gene expression of effector CD4+ T cells WT, Bcl6-deficient , Blimp1-deficient or Bcl6 Blimp1-deficient was determined by RNAseq after LCMV Armstrong infection

2021-11-05 | GSE149597 | GEO

Single-cell gene expression of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

Project description:Single-cell gene expression of effector CD4+ T cells WT, Bcl6-deficient , Blimp1-deficient or Bcl6 Blimp1-deficient was determined by scRNAseq after LCMV Armstrong infection

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Single-cell chromatin accessibility of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

Project description:Single-cell chromatin accessibility of effector CD4+ T cells WT or Bcl6 Blimp1-deficient was determined by scATACseq after LCMV Armstrong infection

2021-11-05 | GSE149913 | GEO

Single-cell gene expression of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

Project description:Single-cell gene expression of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

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Single-cell chromatin accessibility of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

Project description:Single-cell chromatin accessibility of anti-viral CD4 T cells in Bcl6 and Blimp1 deficient conditions

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Dependence on Bcl6 and Blimp1 identifies distinct mechanisms driving memory and follicular helper CD4+ T cell differentiation [scRNA-Seq]

Project description:During the immune response, CD4+ T cells differentiate into distinct effector subtypes, including follicular helper T (Tfh) cells that help B cells, and into memory cells. Tfh and memory cells are required for long-term immunity; both depend on the transcription factor Bcl6, raising the question of whether they differentiate through similar mechanisms. Here, using notably single-cell RNA and ATAC sequencing, we show that virus-responding CD4+ T cells lacking both Bcl6 and Blimp1 can differentiate into cells with transcriptomic, chromatin accessibility and function attributes of memory cells, but not of Tfh cells. Thus, Bcl6 promotes memory cell differentiation primarily through its repression of Blimp1. These findings demonstrate that distinct mechanisms underpin the differentiation of memory and Tfh CD4+ cell and define the Bcl6-Blimp1 axis as a potential target for promoting long-term memory T cell differentiation.

2021-11-14 | GSE184847 | GEO

Dependence on Bcl6 and Blimp1 identifies distinct mechanisms driving memory and follicular helper CD4+ T cell differentiation [scATAC-Seq]

2021-11-14 | GSE184846 | GEO

Transcriptome analysis of Blimp1-sufficient (Ctrl) and Blimp1-deficient (CKO) CD4+ Foxp3+ regulatory (Treg) and Foxp3- effector (Teff) T cells

Project description:Comparative analysis of regulation of gene expression by Blimp1 in regulatory and effector CD4+ T cells. The hypothesis tested in the present study was that Blimp1 differentially regualte gene expression in different T cell subsets. Results provide important information of mechanisms underlying regulation of gene expression by Blimp1 in T cells

2017-09-14 | GSE102967 | GEO

RNA-Seq of Bcl6-KO CD4+ T cell subsets during LCMV infection

Project description:Following an infection, CD4+ lymphocytes can differentiate into long-lived memory T cells, some of which circulate through the secondary lymphoid organs (SLOs) while a population lodges in non-lymphoid tissues. While CD4+ T cells in SLOs have been examined, the developmental origins and transcriptional regulation of tissue-resident memory T cells (TRM) remain largely undefined. Here, we investigated the phenotypic, functional, and transcriptional profile of virus-specific CD4+ TRM in the small intestine (SI) following acute lymphocytic choriomeningitis virus (LCMV) infection. LCMV-specific CD4+ TRM at day 7 of infection shared a gene-expression program and chromatin profile with TH1 cells and progressively acquired a mature TRM program by day 21 memory time point, supporting a developmental relationship between TRM and TH1 subsets. Furthermore, we demonstrated that TRM cells expressed genes associated with both effector and memory T cell fates, including the transcriptional regulators Blimp1, Id2, and Bcl6 which were necessary for CD4+ TRM differentiation. TH1-associated Blimp1 and Id2 were both required for early TRM formation, while TFH-associated Bcl6 initially inhibited TRM differentiation but was critical for development of long-lived TRM cells. Our results identify new significance for TFs previously associated with circulating CD4+ T cell populations and their roles in driving SI CD4+ TRM differentiation.

2023-06-30 | GSE184252 | GEO

BLIMP1 controls GC B cell expansion and exit through regulating cell cycle progression and key transcription factors BCL6 and IRF4

Project description:In B cells BLIMP1 is required for plasma cell differentiation. BLIMP1 is also expressed in some dark zone (DZ) germinal center (GC) B cells (GCBCs), yet the role of BLIMP1 in GCBCs is not understood. Here we generated mixed bone marrow (BM) chimeric mice using Prdm1+/+ CD19Cre and Prdm1fl/fl CD19Cre BM, allowing us to examine the cell-intrinsic functions of BLIMP1 in GCBC, independent of antibody or antigen levels. Strikingly, BLIMP1-deficient B cells quickly dominate GCs and persist for a much longer time compared to the wild type cells. BLIMP1 deficiency promotes positive selection of GCBC and enhances cell-cycle progression. In addition, BLIMP1 deficiency enhanced class-switching. Mechanistically, BLIMP1-deficient GCBC fail to downregulate BCL6 and to upregulate IRF4, indicating that BLIMP1 controls the expression of these transcription factors that mediate exit from the GC. These studies revealed unique functions of BLIMP1 in regulating GCBC responses that impact long-lived immune compartments.

2024-03-28 | GSE249811 | GEO

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