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MetabolomicsSIRT3-dependent glutaminolysis enhances germinal center epigenetic programming through α-ketoglutarate

Germinal center (GC) B cells depend on sustained epigenetic modulation to maintain transcriptional identity and support affinity maturation; however, whether mitochondrial metabolism directly enhances this chromatin state remains unclear. Here, we show that enhanced SIRT3 activity promotes glutam...

2026-09-04 | MTBLS15385 | MetaboLights
MetabolomicsB cell expression of the enzyme PexRAP, an intermediary in ether lipid biosynthesis, promotes antibody responses and germinal center size.

The qualities of antibody (Ab) responses provided by B lymphocytes and their plasma cell (PC) descendants are crucial facets of responses to vaccines and microbes. Metabolic processes and products regulate aspects of B cell proliferation and differentiation into germinal center (GC) and PC states...

2026-04-13 | MTBLS13880 | MetaboLights
GenomicsChIPseq analyses in germinal center B cells
Germinal center B cells were isolated from human tonsil tissue and crosslinked. ChIP was performed on two distinct pools of germinal center cells, each obtained from 3-5 donors. The experiment includes two biological replicates (germinal center cell pools from different donors). ChIP was performed o...
ORGANISM(S): Homo sapiens 
2015-12-04 | E-GEOD-68349 | biostudies-arrayexpress
TranscriptomicsGerminal Center B-Cell gene expression comparison between Wiskott-Aldrich syndrome protein KO mice and WT mice
This experiment intended to define differential gene expression between germinal center B cells expressing or not the Wiskott-Aldrich syndrome protein in mice. Sequencing was obtained on an Illumina HiSeq2500 system from Dark Zone GCB (DAPI-CD19+ GL7+IgD-CXCR4highCD86low) purified from CTL and GCBc...
ORGANISM(S): Mus musculus 
2021-06-01 | E-MTAB-10056 | biostudies-arrayexpress
TranscriptomicsSingle-cell gene expression of germinal center B cells from CXCL12-conditionally deficient and –sufficient mice
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 mo...
ORGANISM(S): Mus musculus 
2020-05-12 | E-MTAB-8454 | biostudies-arrayexpress
TranscriptomicsB cell-intrinsic STAT6 controls the germinal center response in type 2 immunity
By investigating the germinal center (GC) formation in STAT6ko/WT bone marrow-mixed chimera we found that GC formation in type 2 immune responses is dependent on B cell intrinsic expression of IL-4/IL-13-induced genes. We therefore used microarrays to find Stat6 dependent genes that are important fo...
ORGANISM(S): Mus musculus 
2014-05-26 | E-GEOD-47679 | biostudies-arrayexpress
TranscriptomicsT cell help controls the speed of the cell cycle in germinal center B cells.
The germinal center (GC) is a microanatomical compartment wherein high-affinity antibody-producing B cells are selectively expanded. B cells proliferate and mutate their antibody genes in the dark zone (DZ) of the GC and are then selected by T cells in the light zone (LZ) on the basis of affinity. H...
ORGANISM(S): Mus musculus 
2015-08-12 | E-GEOD-71295 | biostudies-arrayexpress
GenomicsDNA Methylation Dynamics of Germinal Center B Cells Are Mediated by AID
Changes in DNA methylation are required for the formation of germinal centers (GC), but the mechanisms of such changes are poorly understood. Activation-induced cytidine deaminase (AID) has been recently implicated recently in DNA demethylation through its deaminase activity coupled with DNA repai...
ORGANISM(S): Homo sapiens 
2015-09-15 | E-GEOD-71702 | biostudies-arrayexpress
TranscriptomicsExpression data from CXCR4pos (centroblast) and CXCR4neg (centrocyte) Human Germinal Center B cells
Functional discrimination between normal centroblast and centrocyte obtained from human inflamed tonsils after cell sorting. We used microarrays to detail the segregation between these two B cell subsets Flow cytometry analysis was done on human germinal center B cells and cell subsets, i.e. CXCR4po...
ORGANISM(S): Homo sapiens 
2009-06-04 | E-GEOD-15271 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of human primary lymphomas of the central nervous system suggests PCNSL to be derived from a late germinal center B cell.
To characterize the molecular origin of primary lymphomas of the central nervous system (PCNSL), 21 PCNSL of immunocompetent patients were investigated by microarray-based gene expression profiling. Comparison of the transcriptional profile of PCNSL with various normal and neoplastic B cell subsets ...
ORGANISM(S): Homo sapiens 
2008-06-14 | E-GEOD-6047 | biostudies-arrayexpress
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