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  • Title: The role of T cells in anti-herpes simplex virus immunity. I. Induction of antigen-specific cytotoxic T lymphocytes.
    Author: Pfizenmaier K, Jung H, Starzinski-Powitz A, Röllinghoff M, Wagner H.
    Journal: J Immunol; 1977 Sep; 119(3):939-44. PubMed ID: 70478.
    Abstract:
    Mice infected with herpes simplex virus develop little or no cytotoxic T lymphocyte (CTL) response. However, in lymph nodes (LN's) draining a local site infected with HSV, antigen-specific CTL precursors are sensitized, which upon transfer to in vitro culture conditions develop within 72 hr into effective CTL. The in vivo blockade of CTL differentiation can be overcome by cyclophosphamide, suggesting that a cyclophosphamide-sensitive mechanism blocks the in vivo generation of HSV-immune CTL. The cytolytic activity of HSV-immune CTL is H-2 restricted and antigen specific. Thus CTL sensitized toward HSV type 1 discriminate between syngeneic targets infected with either the immunologic HSV variant type 1 or type 2 (and vice versa). H-2-matched target cells exposed for 30 min to infectious HSV are lysed within 60 min of contact with CTL. Since HSV replication is believed to require more than 4 to 5 hr, the data suggest that either the expression of HSV-dependent "early proteins" takes place within 30 to 90 min or cell membrane-integrated HSV virion represents the target antigen of CTL.
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