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  • Title: Immunological comparison of ovarian and colonic CEA.
    Author: Burtin P, Lamerz R, Gendron MC, Maunoury MT, Schnabel G.
    Journal: Immunol Lett; 1982 Feb; 4(2):87-91. PubMed ID: 6174431.
    Abstract:
    Ovarian and colonic CEA were compared immunologically by means of antisera prepared against each of them. CEAs of both origins were found identical by immunodiffusion methods. In radioimmunological experiments, slight differences were observed between some but not all ovarian CEAs and colonic CEAs and also between different preparations of colonic CEA: no organ specificity of ovarian CEA could be demonstrated. Finally, CEA level was measured in 41 sera of patients with ovarian carcinoma by two radioimmunoassays, one using colonic CEA as tracer and standard and anti-colonic CEA serum, the other using ovarian CEA and anti-ovarian CEA serum: the values given by the two assays were highly correlated (rs = 0.8107), meaning that an organ specific assay for ovarian CEA is not needed.
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