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- Jing-Bo Liu, Yong-Ji Yan, Jing Shi, Ya-Bing Wu, Yan-Feng Li, Lin-Feng Dai, and Xue-Tao Ma.
- Department of Urology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
- Medicine (Baltimore). 2019 Jul 1; 98 (29): e16193.
AbstractMicroRNA-191 (miR-191) has been identified as being upregulated in several types of cancers, and plays the role of oncogene. The expression of miR-191 has been found to be upregulated in prostate cancer tissues as well as cell lines. In this study, we analyzed the correlation of miR-191 expression with clinicopathologic factors and prognosis in prostate cancer.Prostate cancer tissue samples and adjacent normal prostate tissue samples were collected from 146 patients who underwent laparoscopic radical prostatectomy between April 2013 and March 2018. Student two-tailed t-test was used for comparisons of 2 independent groups. The relationships between miR-191 expression and different clinicopathological characteristics were evaluated using the Chi-squared test. Kaplan-Meier survival plots and log-rank tests were used to assess the differences in overall survival of the different subgroups of prostate cancer patients.miR-191 expression was significantly higher in prostate cancer tissues compared with normal adjacent prostate tissues (P < .001). miR-191 expression was observed to be significantly correlated with Gleason score (P < .001), pelvic lymph node metastasis (P = .006), bone metastases (P < .001), and T stage (P = .005). Kaplan-Meier analysis showed that patients with higher levels of miR-191 had significantly poorer survival than those with lower expression of this miRNA in prostate cancer patients (log rank test, P = .011). Multivariate analysis revealed that miR-191 expression (hazard ratio [HR] = 2.311, 95% confidence interval, [CI]: 1.666-9.006; P = .027) was independently associated with the overall survival of prostate cancer patients.Our results demonstrated that miR-191 might serve as an independent prognostic indicator for prostate cancer patients.
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