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  • Title: [Comparative studies on monoclonal antibody KM10 and anti-CEA monoclonal antibodies].
    Author: Soyama N, Yamamoto M, Ohyanagi H, Saitoh Y.
    Journal: Nihon Geka Gakkai Zasshi; 1989 Nov; 90(11):1834-9. PubMed ID: 2481805.
    Abstract:
    The specificity of KM10 was evaluated in comparison with newly developed anti-CEA monoclonal antibodies (A10, B9, JA4, AH3). Both KM10 and all anti-CEA monoclonal antibodies reacted with CEA in ELISA system, and with adenocarcinoma of the stomach, colon, and pancreas in the immunohistochemical assay. B9, JA4, and AH3 were suggested to react with CEA related antigens, such as NCA and BGPI, whereas KM10 and A10 were suggested to recognize the distinctive part of CEA. The antigenic determinant of CEA reactive with KM10 and A10 was revealed to be protein moiety after enzyme treatment. The competitive binding inhibition assay, however, indicated that epitopes of KM10 and A10 were different each other. Enzyme immunoassay using both KM10 and A10 could detect CEA. These findings showed the possible use of both KM10 and A10 for clinical diagnosis and treatment by means of targeting for the distinctive part of CEA.
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