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  • Title: Lymphocyte transformation induced by autologous cells. III. Lymphoblast-induced lymphocyte to stimulation does not correlate with EB viral antigen expression or immunity.
    Author: Weksler ME.
    Journal: J Immunol; 1976 Feb; 116(2):310-4. PubMed ID: 55437.
    Abstract:
    Human mitogen-induced and cell line B lymphoblasts stimulate the proliferation of allogeneic and autologous lymphocytes in culture. The role in thes reaction of EB viral determinants on the stimulating cells and immunity of the lymphocyte donor to the EB virus has been studied. The stimulatory capacity of cultured cell line lymphoblasts is not inhibited by incubating lymphoblasts with antisera to EB viral determinants. Cultured cell line B lymphoblasts stimulate as much thymidine incorporation by lymphocytes from donors with or without immunity to the EB virus. Further, a B lymphoblast cell line (U-698) which lacks the EB viral genome stimulated as much lymphocyte proliferation as did B lymphoblasts with the EB genome. Cultured T lymphoblast cell lines do not stimulate allogeneic lymphocyte proliferation. These cells appear to lack the determinants which stimulate lymphocyte transformation. No evidence was found that cultured cell line T lymphoblasts suppressed allogeneic lymphocyte proliferation. Mitogeninduced lymphoblasts from EB-immune and non-immune subjects stimulated the proliferation of autologous lymphocytes comparably. It is concluded that neither immunity to the EB virus nor expression of EB viral antigens on mitogen-induced on cell line lymphoblasts is necessary for the stimulation of lymphocyte proliferation.
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