Abstract
A stable hybridoma clone derived by infusion of mouse myeloma cells (cell line Fo) and spleen cells of immunized mice has been isolated which secretes monoclonal antibodies against human fibroblast interferon (interferon-beta). The antibody inhibits the antiviral activity of human fibroblast interferon in an antiviral assay using human FS4 fibroblast, reacts immunologically with interferon-beta separated by sodium dodecylsulfate/polyacrylamide gel electrophoresis and subsequent transfer to nitrocellulose and absorbs interferon-beta immunologically when bound to CNBr-activated Sepharose. It also inhibits the antiviral activity of human fibroblast interferon-beta from which the sugar moiety has been cleaved off by enzymatic treatment. The antibody is therefore probably directed against the protein moiety of the interferon molecules.
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