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  • Title: In vivo priming and activation of memory cytotoxic T-lymphocytes (CTL) by a chimeric simian virus 40 T antigen expressing an eight amino acid residue herpes simplex virus gB CTL epitope.
    Author: Bonneau RH, Fu TM, Tevethia SS.
    Journal: Virology; 1993 Dec; 197(2):782-7. PubMed ID: 7504370.
    Abstract:
    The simian virus 40 (SV40) large T antigen was used as an immunogenic vector to express a herpes simplex virus type 1 (HSV-1) glycoprotein B (gB), H-2Kb-restricted cytotoxic T lymphocyte (CTL) recognition epitope corresponding to amino acid residues 498-505. Immunization of naive, C57BL/6 mice with a cell line, B6/350gB, expressing the chimeric T antigen was able to induce the generation of gB498-505-specific CTL in both the lymph nodes and the spleen. Splenic-derived, gB498-505-specific memory CTL (CTLm) were detected in these mice for at least 6 months following immunization at a slightly lower frequency than in those mice immunized with infectious HSV-1. B6/350gB was also able to activate in vitro gB498-505-specific memory CTL obtained from mice previously challenged with HSV. Overall, these findings support the use of a chimeric T antigen as a vector in determining the immunogenic potential of individual CTL epitopes and to assess their potential contribution in inducing a protective immune response in vivo.
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