Prognostic Role of MicroRNA-126 for Survival in Malignant Tumors: A Systematic Review and Meta-Analysis.
BACKGROUND
Increasing studies found that miR-126 expression may be associated with the prognosis of cancers. Here, we performed a meta-analysis to assess the prognostic role of miR-126 in different cancers.


METHODS
Eligible studies were identified by searching in PubMed, Embase, the Cochrane Library, CNKI, and Wan Fang databases up to March 2015. Pooled hazard ratios (HRs) and their corresponding 95% confidence intervals (CIs) were calculated to investigate the correlation between miR-126 and survival of cancers.


RESULTS
Thirty studies including a total of 4497 participants were enrolled in this meta-analysis. The pooled results showed that high level of miR-126 was a predictor for favorable survival of carcinomas, with pooled HR of 0.77 (95% CI 0.64-0.93) for OS, 0.64 (95%CI 0.48-0.85) for DFS, and 0.70 (95% CI 0.50-0.98) for PFS/RFS/DSS. However, high level of circulating miR-126 predicted a significantly worse OS in patients with cancer (HR = 1.65, 95% CI 1.09-2.51).


CONCLUSIONS
Our results indicated that miR-126 could act as a significant biomarker in the prognosis of various cancers.
Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410010, China.
Jie
J
Bu
Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410010, China.
Hui
H
Li
Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410010, China.
Xiao-yang
XY
Li
Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410010, China.
Li-hong
LH
Liu
Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410010, China.
Wei
W
Sun
Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410010, China.
Tao
T
Xiao
D014408:Biomarkers, Tumor / Q000235:genetics*; D006801:Humans; D035683:MicroRNAs / Q000235:genetics*; D009369:Neoplasms / Q000235:genetics* / Q000473:pathology
D014408:Biomarkers, Tumor; C527111:MIRN126 microRNA, human; D035683:MicroRNAs