4 resultados
A new colon cancer antigen is reported. It is designated as COTA, Colon-Ovarian Tumor Antigen, because it is found in mucins produced by both tissues during malignancy. The new antigen was identified by making antibodies against human colon cancer tissue in goats. The antisera were exhaustively
An IgG monoclonal antibody, SP-21, directed against colon-ovarian tumor antigen, COTA, is reported. The antibody had no reactivity with CEA, normal colonic mucin, CSAp, ABO blood group antigens, or with normal human lung, liver, spleen, kidney, plasma and saliva in studies using the enzyme-linked
A goat anti-serum was prepared against mucinous ovarian cyst fluid and absorbed with normal colon and a variety of normal tissues until the only residual immunoreactivity was directed against colon cancer and ovarian tumor mucin. The set of antigenic determinants defined by this anti-serum has been
The localization and diagnostic value of colon-ovarian tumor antigen (COTA) were studied by immunohistochemical S-P method. COTA was found in all 18 cases of mucinous ovarian cystadenocarcinoma (100%) and 3 border line cystadenomas (100%). Yet in 18 cases of ovarian benign mucinous cystadenoma, only