The Role of Glycoproteins gC, gE, gI and gG in the Induction of Cell-Mediated Immune Responses to Bovine Herpesvirus 1
1996
Denis, M. | Hanon, E. | Rijsewijk, F. A. | Kaashoek, M. J. | van Oirschot, J. T. | Thiry, Etienne | Pastoret, Paul-Pierre
anglais. peer reviewed
Afficher plus [+] Moins [-]anglais. Mutant viruses with deletions in genes encoding non-essential glycoproteins are considered as promising bovine herpesvirus 1 (BHV1) vaccine candidates. The present study compared the influence of various gene deletions (gC, gE, gI, gG) on the induction of cell-mediated immune responses against the virus. The highest BHV1 specific lymphoproliferative response was observed in the group of calves inoculated with the gC- mutant. However, in all groups of inoculated calves, limiting dilution analysis showed marked individual variability in the number of BHV1 specific T lymphocytes that were stimulated. The same animals were then challenged with wild-type BHV1. In these animals, limiting dilution analysis did not reveal gE, gI nor gG as a major T lymphocyte antigen. However, further analysis suggested the T cell antigenicity of gE in a low number of BHV1 hyperimmunized calves. Stimulation of MHC unrestricted cytotoxicity was also evaluated after inoculation with the various deletion mutants. Cytotoxicity in gC- inoculated calves was as high as in BHV1 inoculated calves. In conclusion, among the BHV1 deletion mutants that were tested, the gC- mutant stimulated the best cell-mediated immune responses.
Afficher plus [+] Moins [-]Mots clés AGROVOC
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