Evaluation of New Biomarkers in the Prediction of Malignant Mesothelioma in Subjects with Environmental Asbestos Exposure.
Lung
; 194(3): 409-17, 2016 06.
Article
em En
| MEDLINE
| ID: mdl-27032653
ABSTRACT
INTRODUCTION:
The purpose of this study was to investigate the potential value of certain biomarkers in predicting the presence of malignant pleural mesothelioma (MPM) in individuals environmentally exposed to asbestos.METHODS:
This prospective study investigated three groups; a control group composed of 41 healthy subjects, an asbestos exposure group consisting of 48 individuals, and a MPM group consisting of 42 patients. Serum levels of soluble mesothelin-related peptide (SMRP), thioredoxin-1 (TRX), epidermal growth factor receptor (EGFR), fibulin-3, syndecan-1 (SDC-1), and mesothelin were determined.RESULTS:
Benign pleural plaques were present in 27 (58.3 %) of the individuals in the asbestos exposure group. The asbestos exposure group had significantly higher mean TRX, SMRP, and mesothelin levels compared to the control group (p = 0.023, p = 0.011, and p < 0.001, respectively). Compared to the asbestos exposure group, the MPM group had significantly higher mean EGFR, TRX, SMRP, and fibulin-3 levels (p = 0.041, p = 0.023, p = 0.002, and p = 0.001, respectively), and significantly lower mean SDC-1 levels (p = 0.002). Unlike the other biomarkers, SMRP and TRX levels increased in a graded fashion among the control, asbestos exposure, and MPM groups, respectively. Area under the curve values for SMRP and TRX were 0.86 and 0.72, respectively (95 % CI 0.79-0.92 and p < 0.001 for SMRP, and 95 % CI 0.62-0.81 and p < 0.001 for TRX). The cut-off value for SMRP was 0.62 nmol/l (sensitivity 97.6 %, specificity 68.9 %, positive predictive value (PPV) 56.2 %, and negative predictive value (NPV) 98.3 %) and for TRX was 156.67 ng/ml (sensitivity 92.9 %, specificity 77.6 %, PPV 41.4 %, and NPV 92.1 %). The combination of the biomarkers reached a sensitivity of 100 %, but had lower specificity (as high as 27.7 %).CONCLUSIONS:
Serum biomarkers may be helpful for early diagnosis of MPM in asbestos-exposed cases. SMRP and TRX increased in a graded fashion from the controls to asbestos exposure and MPM groups. These two seem to be the most valuable biomarkers for the diagnosis of MPM, both individually and in combination.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Pleurais
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Amianto
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Biomarcadores Tumorais
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Exposição Ambiental
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Mesotelioma
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
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Screening_studies
Limite:
Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Lung
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Turquia