Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

RNA-seq profiling of resting naive and CD27bright memory B cells and in vitro activated CD27bright memory B cells reveals differences in B-cell activation patterns in common variable immunodeficiency (CVID)

ABSTRACT: To investigate the transcriptional differences during resting state and B-cell activation in healthy donors and patients with CVID, we sorted naive B cells and CD27bright memory B cells from the two groups and examined the resting state and TLR9 agonist (CpG)-activated CD27bright memory B cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE307095 | GEO | 2025/12/02

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Identification of IVIg regulated genes in human peripheral blood monocytes from Common Variable Immunodeficiency patients (CVID) [CD14+]

Project description:Identification of IVIg regulated genes in human peripheral blood monocytes by gene expression analysis before and after IVIg infusion in CVID patients

2022-05-03 | GSE133907 | GEO

Identification of IVIg regulated genes in human peripheral blood mononuclear cells from Common Variable Immunodeficiency patients (CVID) [PMBC]

Project description:Identification of IVIg regulated genes in human PBMC by gene expression analysis before and after IVIg infusion in CVID patients.

2022-05-03 | GSE133835 | GEO

Deciphering imprints of impaired memory B-cell maturation in germinal centers of patients with Common variable immunodeficiency

Project description:Common variable immunodeficiency (CVID), characterized by recurrent infections, low serum class-switched immunoglobulin isotypes and poor antigen specific antibody responses, comprises a heterogeneous patient population in terms of clinical presentation and underlying etiology. The diagnosis is regularly associated with a severe decrease of germinal center (GC) derived B-cell populations in peripheral blood. However, data from B-cell differentiation within GC is limited. We present a multiplex approach combining histology, flow cytometry and B-cell receptor repertoire analysis of sorted GC B-cell populations allowing the modelling of distinct disturbances in GCs of three CVID patients. Our results reflect pathophysiological heterogeneity underlying the reduced circulating pool of post-GC memory B cells and plasmablasts in the three patients. In patient 1, quantitative and qualitative B-cell development in GCs is relatively normal. In patient 2, irregular shaped GCs are associated with reduced somatic hypermutation (SHM), antigen selection and class-switching, while in patient 3, high SHM, impaired antigen selection and class-switching with large single clones imply increased re-cycling of cells within the irregular shaped GCs. In lymph nodes of patients 2 and 3, only limited numbers of memory B cells and plasma cells are formed. While reduced numbers of circulating post GC B cells is a general phenomenon in CVID, the integrated approach exemplified distinct defects during GC maturation ranging from near normal morphology and function to severe disturbances with different facets of impaired maturation of memory B cells and/or plasma cells. Integrated dissection of disturbed GC B-cell maturation by histology, flowcytometry and BCR repertoire analysis reveals essential steps during memory formation.

2022-09-19 | GSE213361 | GEO

Gastrointestinal symptoms and pathology in patients with Common variable immunodeficiency

Project description:Based on the findings of increased IEL in duodenal biopsies in CVID, an overlap with celiac disease has been suggested. In the present study, increased IEL, in particular in the pars descendens of the duodenum, was one of the most frequent histopathological finding. We therefore examined the gene expression profile in pars descendens of duodenum in CVID patients with increased IEL (n=13, IEL mean 34 [range 22-56] IEL/100 EC), CVID with normal levels of IEL (n=7), celiac disease (n=10, Marsh grade 3a or above) and healthy controls (n=17) by gene expression microarray GI histopathological findings in 53 CVID patients that underwent upper and lower endoscopic examination were addressed. For the microarray analysis 20 CVID (7 CVID_normal and 13 CVID with incresed IEL), 10 patients with celiac diseases and 17 healthy controls were included.

2015-09-02 | E-GEOD-72625 | biostudies-arrayexpress

Duodenal inflammation in common variable immunodeficiency has altered transcriptional response to viruses

Project description:A substantial proportion of common variable immunodeficiency (CVID) patients has duodenal inflammation of largely unknown etiology. However, because of its histologic similarities with celiac disease, gluten sensitivity has been proposed as a potential mechanism. We aimed to elucidate the role of the duodenal microenvironment in the pathogenesis of duodenal inflammation in CVID by investigating the transcriptional, proteomic, and microbial signatures of duodenal biopsy samples in CVID.

2025-04-29 | PXD063461 | Pride

RNA-seq profiling of resting naive and CD27bright memory B cells and in vitro activated CD27bright memory B cells reveals differences in B-cell activation patterns in common variable immunodeficiency (CVID)

Project description:RNA-seq profiling of resting naive and CD27bright memory B cells and in vitro activated CD27bright memory B cells reveals differences in B-cell activation patterns in common variable immunodeficiency (CVID)

| PRJNA1314250 | ENA

IgM from common variable immunodeficiency patients narrowly recognizes erythrocyte and platelet glycans

Project description:Autoantibody-mediated cytopenias (AICs) regularly occur in profoundly IgG-deficient common variable immunodeficiency (CVID) patients. The isotypes, antigenic targets, and origin(s) of disease-causing autoantibodies in this patient population are unclear. Herein, we report that erythrocytes and platelets from CVID patients with AICs (CVID+AIC) are coated with autoreactive IgM. Glycan array-based analyses of CVID+AIC plasma IgM revealed narrow reactivities to erythrocytic I/i antigens and platelet expressed I/i antigen-related glycans but starkly lower binding to hundreds of other pathogen and tumor-associated carbohydrates. Polyclonal B-cell receptors with corresponding I/i antigen reactivities were highly enriched among CVID+AIC circulating marginal zone (MZ) B cells. Within secondary lymphoid tissues, MZ B cells secreted copious IgM when activated by IL-10 secreting FOXP3-CD25hiTfh cells. In lymph nodes from immunocompetent controls, MZ B cells localized outside of GCs near rare FOXP3-CD25+ cells and plentiful FOXP3+ regulatory T cells. In CVID+AIC lymph nodes, counterpart cells localized to similar anatomic positions but CD25hiTfh cells greatly outnumbered regulatory T cells. In total, our findings indicate glycan-reactive IgM autoantibodies produced outside of GC borders may contribute to the autoimmune pathogenesis of CVID.

2023-06-09 | GSE233753 | GEO

Gastrointestinal symptoms and pathology in patients with Common variable immunodeficiency

2015-09-02 | GSE72625 | GEO

Gene Expression Profiles of CD21low B cells in Common Variable Immunodeficiency

Project description:The homeostasis of circulating B cell subsets in the peripheral blood of healthy adults is well regulated, but in disease it can be severely disturbed. Thus, a subgroup of patients with common variable immunodeficiency (CVID) presents with an extraordinary expansion of an unusual B cell population characterized by the low expression of CD21. Since these circulating atypical B cells in the blood of CVID patients could not be assigned to any certain B cell differentiation stage in the periphery, they were designated as CD21low B cells. Although, CD21low B cells are polyclonal and unmutated IgM+IgD+ B cells like naive B cells in the peripheral blood, they reveal several distinct phenotypic and functional features. In order to uncover the the global programme of gene expression underlying these differences and changes in CD21low B cells we have performed microarray hybridization experiments and identified differentially expressed genes which define a distinct gene expression profile in CD21low B cells compared to naive B cells. Leucocytes were separated by Ficoll gradient from peripheral blood of healthy donors (HD) and CVID patients. CD19+CD27-CD38+CD21+ naive B cells of HD as well as naive and CD19hiCD27-CD38lowCD21low (CD21low) B cells of CVID patients were sorted using a MoFlow cell sorter. RNA was extracted from sorted ex vivo B cell subpopulations and hybridized on Affymetrix microarrays. Gene expression profiles were compared between CD21low B cells and naive B cells of CVID patients as well as HD naive B cells.

2009-07-30 | E-GEOD-17269 | biostudies-arrayexpress

Gene expression in CD21low and CD21pos B cells from CVID patients

Project description:A subgroup of CVID patients presents with a loss of switched memory B cells and an accumulation of CD21low B cells.RNAseq data from CVID derived CD21low and CD21pos B cells were compared to naive CD21pos B cells in Healthy controls. The data reveal a distinct gene expression profile in CD21low B cells compared to HD.

2021-08-05 | GSE148163 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

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