Characterization of Marek's disease herpesvirus-specific cytotoxic T lymphocytes in chickens inoculated with a non-oncogenic vaccine strain of MDV

Immunology
A R Omar, K A Schat

Abstract

Previously we have reported that reticuloendotheliosis virus (REV)-transformed cell lines expressing Marek's disease virus (MDV) genes pp38, meq or gB were lysed by syngeneic MDV-specific splenocytes from major histocompatibility complex (MHC):B9B19 and MHC:B1B21 chickens. In contrast, REV-transformed cell lines expressing the MDV gene ICP4 were only lysed by syngeneic MDV-specific splenocytes from MHC:B21B21 chickens. In this study we report that this syngeneic cell-mediated immune response is induced by cytotoxic T lymphocytes (CTL). Splenocytes from MDV vaccine strain, SB-1 inoculated MHC:B19B19 and MHC:B21B21 chickens, depleted for CD4+, CD8+, TCR gamma delta +, TCR alpha beta 1+ and/or TCR alpha beta 2+ cells, were used as effector cells in chromium-release assays. Effector cells depleted of CD8+ or TCR alpha beta 1+, but not TCR gamma delta + or TCR alpha beta 2+, markedly reduced the MDV-specific release. Depletion of CD4+ effector cells did not influence the specific release significantly. This is the first report on identification of virus-specific CD8+ CTL in chickens inoculated with a non-oncogenic vaccine strain of MDV.

References

Dec 1, 1991·Proceedings of the National Academy of Sciences of the United States of America·J M LahtiM D Cooper

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Citations

Mar 16, 2000·Developmental and Comparative Immunology·K A Schat, Z Xing
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