Altered circulating levels of adipokine omentin-1 in patients with prostate cancer

Lin Zhou,1,* Weiming He,2,* Wenjun Wang,1 Daoping Zhou31Department of Medical Record and Statistics, Anhui No.2 Provincial People’s Hospital, Hefei, Anhui, 230041, People’s Republic of China; 2Department of Public Health, Guangdong Medical University, Zhanjiang, Guangdong 524023, People’s Republic of China; 3Department of Oncology, Anhui No.2 Provincial People’s Hospital, Hefei, Anhui, 230041, People’s Republic of China *These authors contributed equally to this work Background: Prostate cancer (PCa), one of the most common cancers in men, accounts for nearly 20% of adult malignant neoplasms. Omentin-1 is synthesized in visceral adipose tissue and its concentration in plasma changes with cancers. However, the association between omentin-1 and PCa was rarely studied. Thus, we investigated the plasma omentin-1 levels in PCa patients in Chinese population.Materials and methods: Ninety cases of PCa and 90 matched healthy controls were enrolled in this study. We used ELISA technique to determine the concentration of omentin-1.Results: The concentration of omentin-1 was higher in patients with PCa compared to controls (P<0.001). Additionally, positive correlations were uncovered between omentin-1 with body mass index (r=0.240, P=0.001), waist-hip ratio (r=0.228, P=0.002), and prostate-specific antigen (r=0.589, P<0.001). Receiver operating characteristic curve analysis indicated that plasma omentin-1 differentiated PCa patients from controls with a sensitivity of 85.9% and a specificity of 83.7%.Conclusion: Our study demonstrated that the levels of plasma omentin-1 were increased in PCa patients. Meanwhile, omentin-1 may be a possible biomarker for diagnosing PCa. For validation, more studies should focus on and elucidate the potential mechanism underlying this change.Keywords: omentin-1, prostate cancer, obesity, body mass index, adipokine