Journal
VACCINE
Volume 19, Issue 27, Pages 3769-3777Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0264-410X(01)00085-8
Keywords
Epstein-Barr virus; CTL epitopes; vaccine design
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This study investigates the hierarchy of cytotoxic T cell (CTL) responses to twelve HLA AZ-restricted epitopes from the latent, lytic and structural proteins of Epstein-Barr virus (EBV) in acute infectious mononucleosis and in healthy seropositive donors and the relative immunogenecity of these epitopes in transgenic mice. Responses to the lytic epitope were uniformly strong in all healthy seropositive individuals and acute infectious mononucleosis donors while moderate or low responses were observed to the latent and structural epitopes. respectively in both groups studied. In contrast, when HLA A2/Kb transgenic mice were immunised with these peptide epitopes, CTL responses were observed to all epitopes with a maximal response to the epitopes within the structural proteins and low to moderate responses to the latent epitopes. This hierarchy of CTL responses in mice was also reflected in an MHC stabilisation analysis. These contrasting CTL responses in humans following natural infection compared to the immunogenicity of these epitopes and their ability to stabilise MHC mag; need to be considered when designing an EBV vaccine. (C) 2001 Elsevier Science Ltd. All rights reserved.
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