| Literature DB >> 10514374 |
J Uchida1, T Yasui, Y Takaoka-Shichijo, M Muraoka, W Kulwichit, N Raab-Traub, H Kikutani.
Abstract
The effect of the Epstein-Barr virus (EBV) latent membrane protein 1 (LMP1) on the activation and differentiation of normal B cells was investigated. B cells of transgenic mice expressing LMP1 under the control of immunoglobulin promoter/enhancer displayed enhanced expression of activation antigens and spontaneously proliferated and produced antibody. Humoral immune responses of LMP1 transgenic mice in CD40-deficient or normal backgrounds revealed that LMP1 mimics CD40 signals to induce extrafollicular B cell differentiation but, unlike CD40, blocks germinal center formation. Thus, these specific properties of LMP1 may determine the site of primary B cell infection and the state of infection in the natural course of EBV infection, whereas subsequent loss of LMP1 expression may affect the site of persistent latent infection.Entities:
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Year: 1999 PMID: 10514374 DOI: 10.1126/science.286.5438.300
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728