RT Journal Article SR Electronic T1 Clinical Significance of Serum Mesothelin in Patients with Mesothelioma and Lung Cancer JF Clinical Cancer Research JO Clin Cancer Res FD American Association for Cancer Research SP 5076 OP 5081 DO 10.1158/1078-0432.CCR-07-0629 VO 13 IS 17 A1 Cristaudo, Alfonso A1 Foddis, Rudy A1 Vivaldi, Agnese A1 Guglielmi, Giovanni A1 Dipalma, Nicola A1 Filiberti, Rosangela A1 Neri, Monica A1 Ceppi, Marcello A1 Paganuzzi, Michela A1 Ivaldi, Gian Paolo A1 Mencoboni, Manlio A1 Canessa, Pier Aldo A1 Ambrosino, Nicolino A1 Chella, Antonio A1 Mutti, Luciano A1 Puntoni, Riccardo YR 2007 UL http://clincancerres.aacrjournals.org/content/13/17/5076.abstract AB Purpose: High levels of serum-soluble mesothelin family proteins (SMRP) have been found to be associated with malignant mesothelioma (MM), but not lung cancer (LC). To verify the clinical role of this marker for both these tumors, we tested serum SMRP in the largest population of thoracic cancers ever assembled. Experimental Design: SMRP blood concentrations were measured in 107 patients with MM, 215 patients with LC, 130 patients with benign respiratory diseases (BRD), and 262 controls. Statistical comparison between mean serum SMRP levels in all groups was done and receiver operating characteristic curves were constructed to evaluate the performance of this marker. Results: SMRP levels were significantly higher in patients with MM and LC than in patients with benign respiratory diseases and controls (P < 0.001). The area under the receiver operating characteristic curve for serum SMRP discriminating MM and controls was 0.77 (95% confidence interval, 0.71-0.83), with a best cutoff of 1.00 nmol/L (sensitivity, 68.2%; specificity, 80.5%). In both MM and LC, serum SMRP levels did not differ significantly between early and late stages. High SMRP levels proved to be an independent negative prognostic factor in patients with MM. Conclusions: Our data confirm that serum SMRP is a promising marker for the diagnosis, prognosis, and clinical monitoring of MM. We found that serum SMRP dosage may prove helpful in LC diagnosis as well. These data may also have positive repercussions on secondary preventive medical strategies for workers previously exposed to asbestos.