Abstract:The relationship between the primary tumor expression of a breast epithelial antigen, called non-penetrating glycoprotein (NPGP) or breast epithelial mucin, and the same patient's serum level of this antigen at the time of relapse was studied in 23 cases. The expression of NPGP on breast tumors was measured by immunoperoxidase staining using monoclonal antibody Mc5, and quantitated by a histopathological index created for this purpose. Serum levels were measured by a competitive RIA using the same monoclonal a… Show more
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