Synonyms
BP50; CDW40; P50; TNFR superfamily member 5 (TNFR5)
Definition
Historical Background
CD40 is a type I integral membrane protein and a member of the tumor necrosis factor receptor (TNFR) family of molecules that functions as a major communication link between antigen-presenting cells (APCs) (B cells, macrophage, and dendritic cells (DCs)) and CD4 T cells. In the years prior to the discovery of CD40, there was widespread appreciation that antigen-specific activation of naïve B cells required contact-dependent interactions with activated T cells. However, only subsequent to demonstrating that contact was independent of cognate MHC interactions did it become clear that B-T cell contact required interactions with membrane-associated factors and not just cytokines (Banchereau et al. 1994; Lederman et al. 1993). CD40 was initially discovered as a B cell surface protein that could drive the proliferation and enhance the differentiation of B cells following stimulation with anti-CD40...
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References
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Covey, L.R. (2014). CD40. In: Mackay, I.R., Rose, N.R., Diamond, B., Davidson, A. (eds) Encyclopedia of Medical Immunology. Springer, New York, NY. https://doi.org/10.1007/978-0-387-84828-0_32
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DOI: https://doi.org/10.1007/978-0-387-84828-0_32
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