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  • Title: Delayed hypersensitivity and immune protection against herpes simplex virus: suppressor T cells that regulate the induction of delayed hypersensitivity effector T cells also regulate the induction of protective T cells.
    Author: Schrier RD, Ishioka GY, Pizer LI, Moorhead JW.
    Journal: J Immunol; 1985 May; 134(5):2889-93. PubMed ID: 2580006.
    Abstract:
    We have been studying delayed hypersensitivity (DH) to herpes simplex virus (HSV) in order to examine the role of this response in host defense against acute and recurrent HSV infections. In previous reports the basic parameters of DH to HSV have been characterized by using a murine ear swelling model, and also the regulation of DH to HSV induced by i.v. injection of the virus. In this paper, we describe a murine protection system and our use of the ability to specifically regulate DH to HSV to examine the correlation between T cells that transfer DH (TDH) and cells that transfer protection from acute HSV infection. Both DH and protection can be transferred with lymph node cells from mice immunized subcutaneously 4 days previously. The effector cell appears to be a T cell, because serum from these donors confers no protection and treatment of immune cells with anti-Thy-1.2 plus complement reduced their ability to protect. Tolerance of DH to HSV was induced by i.v. injection 7 days before subcutaneous immunization. Tolerized mice were unable to generate protective cells. Furthermore, tolerized mice contained suppressor T cells that suppressed not only DH but also the development of protective cells. Regulation of protective cells was shown to be virus specific, because mice tolerized with vesicular stomatitis virus (VSV) were not impaired in their ability to generate T cells that protected from HSV infection. The correlation between the TDH cell and cells that transfer protection from acute HSV infection is discussed.
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