title: [Initial basic and clinical evaluation of a solid-phase immunoradiometric assay for sialyl SSEA-1 antigen: 2. Evaluation of clinical significance].
abstract: The clinical significance of serum sialyl SSEA-1 antigen was evaluated using the sera of 1261 patients with malignant tumors and 717 patients with non-malignant diseases measured with Otsuka Assay Laboratories' RIA Kits. The results indicate that the antigen was frequently elevated in the sera from the patients with various adenocarcinomas, including lung (45%), pancreas (64%) and ovary (57%). The false positive incidence of antigens in the sera from the patients with non-malignant disorders was as low as 4.9%. No correlation was observed with other tumor markers examined in this study, and the diagnostic efficiency increased significantly by the combined determination of sialyl SSEA-1 antigen level with other markers. The serial determination of the serum sialyl SSEA-1 antigen level has a clinical utility also in monitoring the patients with adenocarcinoma receiving surgical operation and/or chemotherapy as indicated by the results of the longitudinal observation of the patients.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis*; D000951:Antigens, Neoplasm / Q000032:analysis*; D018288:Carcinoma, Small Cell / Q000175:diagnosis; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis; D005069:Evaluation Studies as Topic; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis; D006017:Glycolipids / Q000097:blood*; D006801:Humans; D016256:Lewis X Antigen; D008171:Lung Diseases / Q000175:diagnosis; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D011863:Radioimmunoassay / Q000592:standards*; D011933:Reagent Kits, Diagnostic
chemical_list: D000951:Antigens, Neoplasm; D006017:Glycolipids; D016256:Lewis X Antigen; D011933:Reagent Kits, Diagnostic