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  • Title: Cell-mediated immunity to tumor antigen in Marek's disease: susceptibility of effector cells to antithymocyte serum and enhancement of cytotoxic activity by Vibrio cholerae neuraminidase.
    Author: Sharma JM.
    Journal: Infect Immun; 1977 Oct; 18(1):46-51. PubMed ID: 302827.
    Abstract:
    Spleen cells from chickens inoculated 7 to 8 days previously with Marek's disease virus were cytotoxic for 51Cr-labeled cells of a Marek's disease lymphoblastoid cell line (MSB-1 line) in a 4-h in vitro cytotoxic assay. The cytotoxic activity of spleen cells was inhibited by pretreatment with antithymocyte serum and complement, but not with complement alone or in combination with anti-bursa cell serum or normal preimmune serum. The conclusion was that the effector cell in the above cytotoxic assay was a thymus-derived lymphocyte. Also, pretreatment of target cells with Vibrio cholerae neuraminidase enhanced in vitro cytotoxic activity of effector cells. Similar enzymatic treatment of effector cells had a negligible effect on cytotoxicity.
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