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  • Title: Specificity of serum from rodents immune to Moloney C-type virus-induced tumours.
    Author: Hogg NM.
    Journal: Int J Cancer; 1976 Oct 15; 18(4):439-47. PubMed ID: 61944.
    Abstract:
    When cells are infected by C-type viruses such as Moloney sarcoma/leukaemia virus, new antigens appear on the cell membrane. Mice and rats will respond immunologically to the antigen(s). It was uncertain whether the antigens were related to the viral structural proteins or to non-virion, tumour-specific surface antigens (TSSA) or both. In an 125I-antiglobulin binding assay, Moloney virus completely blocked the binding of mouse and rat sera to virus shedding target cells, thus suggesting that mice and rats recognise only viral proteins. Mice responded to type-specific and rats mainly to group-specific determinants on the virus. Individual Moloney viral proteins were prepared using the guanidine HCl method and were used to block the binding of the rat anti-Moloney immune serum to Moloney virus shedding target cells. By this method, it was demonstrated that the rat serum contains specificities for the viral proteins gp70 and p30, but it was not possible to detect any antibodies directed towards non-virion or TSSA-like molecules.
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