Abstract:Objective To investigate the expression and prognostic value of ubiquitin carboxyl-terminal hydrolase 37 (UCH37) in non-small cell lung cancer. Methods QRT-PCR was performed to detect the expressions of UCH37 in non-small cell lung cancer patients tissues. The clinical relevance of UCH37 in non-small cell lung cancer was analyzed by Chi-square analysis and Cox proportional hazards risk analysis. Results qRT-PCR suggested that levels of UCH37 were significantly higher in non-small cell lung cancer tissues compared with adjacent tissue (P < 0.05). High expression of UCH37 was significantly associated with TNM stage and lymph node status of non- small cell lung cancer (P < 0.05). Patients with increased expression of UCH37 experienced lowered 5 years overall survival rate (P = 0.009) and progression-free survival (P = 0.032) after surgery. Cox proportional hazards regression model confirmed that UCH37 can be used as a predictor of prognosis in non-small cell lung cancer [H ^ R = 2.221, (95% CI: 1.367, 3.437), P = 0.038). Conclusions Upregulated UCH37 may be a valuable prognostic biomarker for non-small cell lung cancer.