Protective cellular immunity: cytotoxic T-lymphocyte responses against dominant and recessive epitopes of influenza virus nucleoprotein induced by DNA immunization.
AUTOR(ES)
Fu, T M
RESUMO
DNA immunization offers a novel means to induce cellular immunity in a population with a heterogeneous genetic background. An immunorecessive cytotoxic T-lymphocyte (CTL) epitope in influenza virus nucleoprotein (NP), residues 218 to 226, was identified when mice were immunized with a plasmid DNA encoding a full-length mutant NP in which the anchor residues for the immunodominant NP147-155 epitope were altered. Mice immunized with wild-type or mutant NP DNA were protected from lethal cross-strain virus challenge, and the protection could be adoptively transferred by immune splenocytes, indicating the role of cell-mediated immunity in the protection. DNA immunization is capable of eliciting protective cellular immunity against both immunodominant and immunorecessive CTL epitopes in the hierarchy seen with virus infection.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=191393Documentos Relacionados
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