Human Gene Set: GSE13411_IGM_MEMORY_BCELL_VS_PLASMA_CELL_UP


Standard name GSE13411_IGM_MEMORY_BCELL_VS_PLASMA_CELL_UP
Systematic name M3249
Brief description Genes up-regulated in comparison of IgM-memory B cells versus plasma cells.
Full description or abstract Enhanced secondary Ab responses are a vital component of adaptive immunity, yet little is understood about the intrinsic and extrinsic regulators of naive and memory B cells that results in differences in their responses to Ag. Microarray analysis, together with surface and intracellular phenotyping, revealed that memory B cells have increased expression of members of the TNF receptor, SLAM, B7 and Bcl2 families, as well as the TLR-related molecule CD180 (RP105). Accordingly, memory B cells exhibited enhanced survival, proliferation and Ig secretion, as well as entered division more rapidly than naïve B cells in response to both T-dependent and T-independent stimuli. Furthermore, both IgM and isotype switched memory B cells, but not naïve B cells, co-stimulated CD4+ T cells in vitro through a mechanism dependent on their constitutive expression of CD80 and CD86. This study demonstrates that upregulation of genes involved in activation, co-stimulation and survival provides memory B cells with a unique ability to produce enhanced immune responses and contributes to the maintenance of the memory B cell pool.
Collection C7: Immunologic Signature
      IMMUNESIGDB: ImmuneSigDB
Source publication Pubmed 19124732   Authors: Good KL,Avery DT,Tangye SG
Exact source GSE13411_1623_200_UP
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Source species Homo sapiens
Contributed by Jernej Godec (Dana-Farber Cancer Institute)
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Version history 7.3: Moved to ImmuneSigDB sub-collection.

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