PMID- 8624791 OWN - NLM STAT- MEDLINE DCOM- 19960625 LR - 20151119 IS - 1125-0135 (Print) IS - 1125-0135 (Linking) VI - 39 IP - 4 DP - 1995 Dec TI - Tissue polypeptide specific antigen (tps) and cytokeratin 19 fragment (CYFRA 21.1) immunoradiometric assay in non small cell lung cancer evaluation. PG - 285-9 AB - The aim of our work was the evaluation of the immunoradiometric assay (IRMA) of two cytokeratinic markers, TPS and CYFRA 21.1, in clinical setting on non small cell lung cancer (NSCLC). Serum samples were obtained from 148 untreated NSCLC patients, 60 patients with non malignant lung diseases and 100 healthy subjects: TPS and CYFRA 21.1 serum levels were assayed by IRMA methods. Diagnostic performance of the markers was evaluated and the TPS and CYFRA 21.1 distribution analysed according to some different clinical and biological variables as histological subtypes, stage and survival time by using the Mann-Whitney "U"-test. Sensitivity, specificity and accuracy were 0.54 (80/148), 0.47 (28/60), 0.52 (108/208) and 0.73 (108/148), 0.74 (44/60), and 0.73 (152/208) for TPS and CYFRA 21.1 respectively. CYFRA 21.1 demonstrate a higher sensitivity than TPS in all stages of the disease and in the spinocellular and adenocarcinoma histological subtypes while TPS sensibility is higher in large cell carcinoma. The CYFRA 21.1 specificity is better than TPS probably by reason of its preferential distribution in respiratory epithelium. Both markers serum levels differ significantly between Stage I-II and IV and between Stage I-II-IIIa and IIIb-IV but neither TPS nor CYFRA 21.1 can discriminate Stage IIIa from IIIb. No significant differences were found in the serum expression of the markers by the different histological subtypes. A value of both markers less than the selected cut-off is related to a longer survival of the patients apart from therapy (p < 0.05). Our conclusion supports similar behaviour of these markers in NSCLC and indicates CYFRA 21.1 as the more needed biochemical index to evaluate NSCLC patients. FAU - Giovanella, L AU - Giovanella L AD - Nuclear Medicine Department, University Regional Hospital of Varese, Italy. FAU - Ceriani, L AU - Ceriani L FAU - Bandera, M AU - Bandera M FAU - Rimoldi, R AU - Rimoldi R FAU - Beghe, B AU - Beghe B FAU - Roncari, G AU - Roncari G LA - eng PT - Journal Article PL - Italy TA - Q J Nucl Med JT - The quarterly journal of nuclear medicine : official publication of the Italian Association of Nuclear Medicine (AIMN) [and] the International Association of Radiopharmacology (IAR) JID - 9512274 RN - 0 (Biomarkers, Tumor) RN - 0 (Peptide Fragments) RN - 0 (Peptides) RN - 0 (tissue polypeptide specific antigen) RN - 68238-35-7 (Keratins) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/*analysis MH - Carcinoma, Non-Small-Cell Lung/*diagnosis MH - Female MH - Humans MH - Immunoradiometric Assay MH - Keratins/*analysis MH - Lung Neoplasms/*diagnosis MH - Male MH - Middle Aged MH - Peptide Fragments/*analysis MH - Peptides/*analysis EDAT- 1995/12/01 00:00 MHDA- 1995/12/01 00:01 CRDT- 1995/12/01 00:00 PHST- 1995/12/01 00:00 [pubmed] PHST- 1995/12/01 00:01 [medline] PHST- 1995/12/01 00:00 [entrez] PST - ppublish SO - Q J Nucl Med. 1995 Dec;39(4):285-9.