Article: article from journal or magazin.
Letter (letter): Communication to the publisher.
Carcinoembryonic antigen (CEA): demonstration of a partial identity between CEA and a normal glycoprotein.
The carcinoembryonic antigen of the human digestive tract (CEA), described by Gold as a glycoprotein specific for digestive carcinomatous and foetal tissues, was found to have common antigenic determinants with a glycoprotein of smaller size extracted from normal adult tissues. This observation suggests that only a part of the CEA molecule carries the onco-foetal specificity. It also has practical implications regarding the radioimmunoassay for CEA used for the diagnosis of certain carcinomas.
Adenocarcinoma/diagnosis, Animals, Antigens, Neoplasm, Breast/immunology, Colonic Neoplasms/immunology, Epitopes, Gastrointestinal Neoplasms/diagnosis, Glycoproteins, Humans, Immunodiffusion, Immunoelectrophoresis, Intestines/immunology, Lung/immunology, Male, Prostate/immunology, Rabbits/immunology, Radioimmunoassay, Spleen/immunology
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