title: Profiling tumor-associated markers for early detection of malignant mesothelioma: an epidemiologic study.
abstract: Improved detection methods for diagnosis of asymptomatic malignant mesothelioma (MM) are essential for an early and reliable detection and treatment of this type of neoplastic disease. Thus, focus has been on finding tumor markers in the blood that can be used for noninvasive detection of MM. Ninety-four asbestos-exposed subjects defined at high risk, 22 patients with MM, and 54 healthy subjects were recruited for evaluation of the clinical significance of 8-hydroxy-2'-deoxyguanosine (8OHdG) in WBCs and plasma concentrations of soluble mesothelin-related peptides (SMRPs), angiogenic factors [platelet-derived growth factor beta, hepatocyte growth factor, basic fibroblast growth factor, and vascular endothelial growth factor beta (VEGFbeta)], and matrix proteases [matrix metalloproteinase (MMP) 2, MMP9, tissue inhibitor of metalloproteinase (TIMP) 1, and TIMP2] for potential early detection of MM. The area under receiver operating characteristic (ROC) curves indicate that 8OHdG levels can discriminate asbestos-exposed subjects from healthy controls but not from MM patients. Significant area under ROC curve values were found for SMRPs, discriminating asbestos-exposed subjects from MM patients but not from healthy controls. Except for platelet-derived growth factor beta, the hepatocyte growth factor, basic fibroblast growth factor, and VEGFbeta can significantly differentiate high-risk individuals from healthy control and cancer groups. No diagnostic value was observed for MMP2, MMP9, TIMP1, and TIMP2. In addition to the diagnostic performance defined by the ROC analysis, the sensitivity and specificity results of markers with clinical significance were calculated at defined cutoffs. The combination of 8OHdG, VEGFbeta, and SMRPs best distinguished the individual groups, suggesting a potential indicator of early and advanced MM cancers. The combination of blood biomarkers and radiographic findings could be used to stratify the risk of mesothelioma in asbestos-exposed populations.
authors.affiliation: Department of Molecular Pathology and Innovative Therapies, Polytechnic University of Marche, via Tronto 10/A, Torrette di Ancona, Ancona, Italy.
authors.forename: Monica
authors.initials: M
authors.lastname: Amati
authors.forename: Marco
authors.initials: M
authors.lastname: Tomasetti
authors.forename: Mario
authors.initials: M
authors.lastname: Scartozzi
authors.forename: Laura
authors.initials: L
authors.lastname: Mariotti
authors.forename: Renata
authors.initials: R
authors.lastname: Alleva
authors.forename: Elettra
authors.initials: E
authors.lastname: Pignotti
authors.forename: Battista
authors.initials: B
authors.lastname: Borghi
authors.forename: Matteo
authors.initials: M
authors.lastname: Valentino
authors.forename: Mario
authors.initials: M
authors.lastname: Governa
authors.forename: Jiri
authors.initials: J
authors.lastname: Neuzil
authors.forename: Lory
authors.initials: L
authors.lastname: Santarelli
mesh_terms: D000080242:8-Hydroxy-2'-Deoxyguanosine; D000368:Aged; D043925:Angiogenesis Inducing Agents / Q000097:blood; D001195:Asbestosis / Q000097:blood* / Q000473:pathology; D014408:Biomarkers, Tumor / Q000097:blood*; D016022:Case-Control Studies; D003849:Deoxyguanosine / Q000031:analogs & derivatives / Q000032:analysis; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007962:Leukocytes / Q000737:chemistry; D008297:Male; D020778:Matrix Metalloproteinase 2 / Q000097:blood; D020780:Matrix Metalloproteinase 9 / Q000097:blood; D008654:Mesothelioma / Q000097:blood* / Q000473:pathology; D008875:Middle Aged; D020411:Oligonucleotide Array Sequence Analysis; D012372:ROC Curve; D012680:Sensitivity and Specificity; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000097:blood; D019716:Tissue Inhibitor of Metalloproteinase-2 / Q000097:blood
chemical_list: D043925:Angiogenesis Inducing Agents; D014408:Biomarkers, Tumor; D019715:Tissue Inhibitor of Metalloproteinase-1; D019716:Tissue Inhibitor of Metalloproteinase-2; D000080242:8-Hydroxy-2'-Deoxyguanosine; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9; D003849:Deoxyguanosine