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  • Title: Production of monoclonal antibodies against the B700 murine melanoma antigen and their antimetastatic properties.
    Author: Gersten DM, Moody D, Vieira WD, Law LW, Hearing VJ.
    Journal: Biochim Biophys Acta; 1992 Feb 14; 1138(2):109-14. PubMed ID: 1540656.
    Abstract:
    Two unique murine melanoma antigens, termed B700 and B50, have been identified and isolated from several different murine melanoma cell lines. Both antigens can be detected on the cell surface, are actively shed in culture, and are often found in close association intracellularly. In previous studies, the antigen B700, which is related to serum albumin by biochemical and immunological criteria, was shown to function as a melanoma-specific tumor rejection antigen. We have also shown that animals sensitized to irradiated JB/RH melanoma cells produce antibodies which recognize B700 and/or B50, with B700 evoking the stronger humoral response. Animals testing positive by ELISA for antibody production to B700 or B50 were used for preparation of hybridomas and four different murine monoclonal antibodies have been produced whose specificities should facilitate epitope mapping. Clones have been used to generate ascites fluid in nude mice; the antibodies specifically recognize B700 and intact murine melanoma cells, but not B50. Two of these monoclonal antibodies have been administered systemically to C57Bl/6 mice bearing 5 day pulmonary metastases of the JB/MS melanoma, and significant inhibition of metastatic growth was observed for both antibodies.
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