Objectives:Dihydrodiol dehydrogenase 2 (DDH2) plays an important role in pathogenesis of non-small-cell lung cancer (NSCLC). This study aimed to evaluate the value of serum DDH2 levels in NSCLC patients.Methods:Serum samples were obtained from 863 NSCLC patients and 439 healthy controls. The samples were randomly divided into a training set and a test set. Serum DDH2 levels were assayed by enzyme-linked immunosorbent assay (ELISA).Results:The levels of DDH2 in NSCLC patients were significantly higher than those in healthy controls (P < 0.001). The diagnostic use of DDH2 in lung adenocarcinoma was significantly greater than that of carcinoembryonic antigen, cytokeratin 19 fragment (CYFRA21-1), and carbohydrate antigen 125 (P < 0.001). Combining DDH2 with carcinoembryonic antigen, CYFRA21-1, and carbohydrate antigen 125 was more effective for lung adenocarcinoma diagnosis than DDH2 alone. In addition, the levels of DDH2 could contribute to the diagnosis of lung squamous cell carcinoma.Conclusions:The measurement of serum DDH2 is a valuable diagnostic marker for NSCLC patients.
The International Journal of Biological Markers – SAGE
Published: Jun 1, 2018
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