Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Gene expression profile of B lymphocytes from GPR40 KO and WT mice

ABSTRACT: GPR40 deficiency in B cells was shown to result in enhanced B cell activation and proliferation, antibody production, germinal center formation, and class switch recombination. We used whole transcriptome sequencing to analyze B cells isolated from the spleens of both GPR40-WT and GPR40-BKO mice.

ORGANISM(S): Mus musculus

PROVIDER: GSE277497 | GEO | 2024/09/23

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Gene expression comparison, WT and PDAP1-deficient primary B lymphocytes

Project description:Class switch recombination (CSR) and somatic hypermutation (SHM) are antibody gene diversification reactions occurring in mature B cells that are essential for protective humoral immunity. CSR and SHM are initiated following activation by the antigen, and are dependent on efficient induction of activation-induced cytidine deaminase (AID). Therefore, mature B cell viability and fitness are crucial to mount effective immune responses. Here, we identified PDGFA-associated protein 1 (Pdap1) as an essential regulator of cellular homeostasis in mature B cells. Pdap1 deficiency leads to sustained expression of the integrated stress response (ISR) effector activating transcription factor 4 (Atf4) and induction of the ISR transcriptional program, increased cell death, and defective AID expression. As a consequence, loss of Pdap1 reduces germinal center B cell formation and impairs CSR and SHM. Thus, Pdap1 protects mature B cells against chronic ISR activation, and ensures efficient antibody diversification by promoting their survival and optimal function.

2020-06-19 | GSE141876 | GEO

Tracking immunoglobulin gene editing and transcriptomic changes in GC B cells by single-cell analysis

Project description:In response to T cell-dependent antigens, mature B cells are stimulated to form germinal centers, which are the place of B cell affinity maturation and selection. Here, we dissected the heterogeneity of germinal center B cells and reconstructed their pathway of differentiation by integrating single-cell transcriptomic data with the information on immunoglobulin gene editing associated with somatic hypermutation and class switch recombination.

2022-02-02 | GSE188617 | GEO

Transcriptional profiles of normal human mature B cells

Project description:Mature B cells leave the bone marrow as naïve B cells and migrate to the secondary lymphoid organs where they encounter the antigen for the first time. This interaction stimulates B cells to rapidly grow and form characteristic histological structures called germinal center. In the germinal centers, B cells are targeted by mechanisms of genetic editing of the immunoglobulin loci, namely somatic hypermutation and class switch recombination, undergo selection for high affinity immunoglobulin receptors and are committed to differentiate into memory B cells or plasma cells. GCs display two histological areas the dark and the light zone that have been characterized as functionally distinct compartments through which B cells recycle multiple times during the germinal center reaction.

2018-09-10 | GSE110669 | GEO

Transcriptional profiles of human mature B cells from tonsil tissue

2020-06-17 | GSE139833 | GEO

RNA-seq analysis of gene expression profile in Setd2 WT and KO germinal center B cells and Phf19 WT and KO germinal center B cells

Project description:The goals of this study are to compare gene expression profiles of Setd2 WT and KO germinal center B cells and reveal the underlying mechanisms by which Setd2 regulates germinal center B cell responses. Further our study aims to compare gene expression profiles of Phf19 WT and KO germinal center B cells reveal the underlying mechanisms by which Phf19 regulates germinal center B cells responses. Finally, we combine the two profiles and investigate the relation shape betweeen Setd2 dependent regulation and Phf19 dependent regulation.

2024-09-14 | GSE184075 | GEO

RNA-seq data from nsd2 wt and ko germinal center B cells

Project description:The goal of this study was to invetigate the mechanisms by which nsd2 regulate germinal center reaction by comparing RNA-seq data between nsd2 wt and ko germinal center B cells

2018-12-07 | GSE111755 | GEO

DYRK1A regulates B cell class switch recombination through phosphorylation of MSH6

Project description:Effective protection from viral infections depends on the antibody-specific isotype. Here, we found that the protein kinase, DYRK1A, is essential for B cell-mediated protection from viral infection and vaccination through regulation of class switch recombination (CSR). Dyrk1a-deficient B cells were impaired in CSR activity in vivo and in vitro. Phospho-proteomic screens and kinase-activity assays identified MSH6, a DNA mismatch repair protein, as a direct substrate for DYRK1A, and deletion of a single phosphorylation site attenuated CSR. After CSR and germinal center seeding, DYRK1A was required for proper clonal expansion of antigen-specific B cells through attenuation of proliferation. These findings reveal DYRK1A-mediated biological mechanisms of antibody-mediated immune responses that may be used for manipulation in antibody-mediated autoimmunity

2023-03-16 | PXD034156 | Pride

RNA-seq analysis of gene expression profile in Uhrf1 WT and KO germinal center B cells

Project description:The goals of this study are to compare gene expression profiles of Uhrf1 WT and KO germinal center B cells and reveal the underlying mechanisms by which Uhrf1 regulates germinal center B cell responses. We found that upon Uhrf1 depeletion in germinal center B cells, most of the differentially expressed genes were upreguated.

2018-03-26 | GSE102270 | GEO

Mitochondrial respiration in B lymphocytes is essential for humoral immunity by controlling flux of the TCA cycle

Project description:The function of mitochondrial respiration during B cell fate decisions and differentiation 55 remained equivocal. This study reveals that selection for mitochondrial fitness occurs during B 56 cell activation and is essential for subsequent plasma cell differentiation. By expressing a 57 mutated mitochondrial helicase in transitional B cells, we depleted mitochondrial DNA during 58 B cell maturation, resulting in reduced oxidative phosphorylation. Although no changes in 59 follicular B cell development were evident, germinal centers, class switch recombination to 60 IgG, plasma cell maturation and humoral immunity were diminished. Defective oxidative 61 phosphorylation led to aberrant flux of the tricarboxylic acid cycle and lowered the amount of 62 saturated phosphatidic acid. Consequently, mTOR activity and BLIMP1 induction were 63 curtailed whereas HIF1 _and glycolysis were amplified. Exogenous phosphatidic acid 64 increased mTOR activity in activated B cells. Hence, mitochondrial function is required and 65 selected for in activated B cells for the successful generation of functional plasma cells.

2022-04-06 | ST002140 | MetabolomicsWorkbench

H3K36me2 occupancy profiling by high throughput sequencing from nsd2 wt and ko germinal center B cells

Project description:WHSC1 catalyzes dimethylation of lysine 36 on histone H3, which is upregualted in germinal center B cells. This study aimed to understand the H3K36me2 genome-wide alterations by analysing CHIP-seq data between wt and ko germinal center B cells.

2018-12-07 | GSE111756 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data