High expression of mir-25 predicting poor prognosis in gastric cancer

Aim: The aim of this study was to explore miR-25 expression pattern and its prognostic value in gastric carcinoma (GC). Methods: MiR-25 expression was detected using miRNA-locked nucleic acid in situ hybridization in 180 patients with GC undergoing surgery. Correlation with clinicopathological features and overall survival (OS) was analyzed. Results: MiR-25 expression was decreased in 10.0% (18/180) of GC, increased in 62.2% (112/180), and unchanged in 27.8% (50/180), compared to samples of morphologically normal tissue taken from the same patient ( P P P P = 0.002, P > 0.001, and P = 0.001, respectively. High miR-25 expression remained a significant predictor of shorter survival in stage II ( n = 56, P = 0.015) and stage III ( n = 92, P P = 0.151), stage (HR: 2.26; 95% CI: 1.30-3.94; P = 0.004), lymph node metastasis (HR: 1.40; 95% CI: 0.73-2.68; P = 0.309), high expression of miR-25 (HR: 2.39; 95% CI: 1.53-3.72; P P = 0.001) predicted shorter OS. Conclusion: High expression of miR-25 was associated with decreased OS. Thus, miR-25 may be useful for prognosis evaluation and may provide a novel treatment target in patients with GC.