Abstract
Adsorption of paramyxoviruses to separated membranes of tumor cells produces neoantigens that are immunogenic in syngeneic mice (xenogenization). Thus it became possible to study this process by using modified virus or virus fractions. Membranes with adsorbed viral derivatives produced an immune response which was measured by cytotoxic and complement fixing antibodies and the appearance of autoimmune disease. The effect of viral preparations with reduced F (fusion) protein activity was compared to treatment of membranes with equivalent amounts of active or inactive virus as measured by hemagglutination. Viral preparations without hemolytic activity showed diminished adsorption to membranes and the immune response was reduced. Triton X 100 and desoxycholate extracted from membranes immunogenic material with associated paramyxovirus antigens.
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