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Transcriptome analysis of germinal center B cells of WT and SAP-deficient mice

ABSTRACT: Analysis of germinal center B cells derived from WT and SAP-deficient mice revealed that SAP-deficient mice have reduced Myc signature

ORGANISM(S): Mus musculus

PROVIDER: GSE142640 | GEO | 2019/12/28

REPOSITORIES: GEO

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Germinal center T follicular helper cell IL-4 production is dependent on SLAM receptor (CD150)

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. This SuperSeries is composed of the following subset Series: GSE21379: Expression Data from WT and Sh2d1a-/- in vivo follicular helper CD4 T cells (TFH) versus non follicular helper CD4 T cells (non-TFH) GSE21380: Expression Data from in vivo Tfh vs GC Tfh vs non-Tfh Refer to individual Series

2010-04-28 | E-GEOD-21381 | biostudies-arrayexpress

Transcriptome analysis of germinal center B cells of WT and SAP-deficient mice

Project description:Transcriptome analysis of germinal center B cells of WT and SAP-deficient mice

| PRJNA597848 | ENA

Germinal center T follicular helper cell IL-4 production is dependent on SLAM receptor (CD150)

2010-04-20 | GSE21381 | GEO

Single-cell gene expression of germinal center B cells from CXCL12-conditionally deficient and –sufficient mice

Project description:The chemokines CXCL13 and CXCL12 are reported to be important for the germinal center reaction. Since CXCL12-deficient mice are embryonically lethal, here we took advantage of the Cxcl13-Cre/TdTomato mouse models to genetically ablate CXCL12 from B cell-interacting reticular cells and examine the molecular consequence on germinal center B cells. Spatial segregation of follicular dendritic cells, germinal center B cells and follicular helper T cells is impaired in Cxcl13-Cre/TdTomato Cxcl12fl/fl mice. Single cell transcriptomic analysis revealed that all germinal center B cell subsets (corresponding to distinct stages of the germinal center response) are present in draining lymph nodes of immunized CXCL12-conditionally deficient mice. While most transcriptional regulators of the germinal center response are unperturbed by the genetic perturbation of CXCL12, Bach2 levels were elevated in germinal center B cells from lymph nodes of Cxcl12fl/fl mice. Moreover, single cell B cell receptor sequencing revealed that germinal center B cells in Cxcl13-Cre/TdTomato Cxcl12fl/fl mice harbour a lower mutational burden when compared to germinal center B cells isolated from immunized control mice. Gene expression profiles were validated by flow cytometry and suggest that the provision of CXCL12 by reticular cells governs efficient germinal center responses.

2020-05-12 | E-MTAB-8454 | biostudies-arrayexpress

MYC-MIZ1 protein interaction in germinal center.

Project description:Characterisation of the splenic light zone germinal center B cells in mice carrying WT endogenous mouse allele and mice carrying a mouse allele (Myc V394D) unable to bind its partner transcription factor Miz1 (Zbtb17). Characterisation of Myc WT memory B cells.

2020-05-08 | GSE129262 | GEO

Genome wide analysis of germinal center MYC positive B-cells

Project description:Analysis of the gene expression profile between MYC positive and MYC negative germinal center B-cells. Total RNA isolated from MYC positive and MYC negative GC B-cells, isolated by FACS from 10 day sheep red blood cell immunized mice MycEGFP (a Myc reporter allele, in which a MYC-EGFP fusion protein (MYCEGFP) is expressed from the endogenous Myc locus, Huan, CY et al Eur J Immunol 2008)

2012-09-11 | E-GEOD-39443 | biostudies-arrayexpress

Proteome profiling of mouse germinal center B cells

Project description:Productive B cell responses are critical to protect a host from infection. The spleen and lymph nodes are populated by resting follicular B cells, which can enter germinal centers upon antigen encounter. Once in the germinal center, B cells migrate between the dark and light zones, where they undergo somatic hypermutation and selection, respectively. While germinal center B cells have been studied, an intense molecular understanding of these cells/subsets (and the differences between them) is lacking.

2020-04-06 | PXD015524 | Pride

Genome wide analysis of germinal center MYC positive B-cells

Project description:Analysis of the gene expression profile between MYC positive and MYC negative germinal center B-cells.

2012-09-11 | GSE39443 | GEO

MYC-MIZ1 protein interaction in germinal center.

Project description:MYC-MIZ1 protein interaction in germinal center.

| PRJNA530681 | ENA

The influence of TFEB on gene expression in primary murine germinal center and non-germinal center B cells

Project description:To investigate TFEB-dependent mRNA expression in murine B cells, FACS-sorted germinal center and non-germinal center B lymphocytes of B-cell-specific conditional TFEB KO mice and control littermates were subjected to RNA sequencing analysis

2024-06-25 | GSE237799 | GEO

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