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2017 ; 2017
(ä): 1928021
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Prognostic Role of the MicroRNA-200 Family in Various Carcinomas: A Systematic
Review and Meta-Analysis
#MMPMID28321402
Lee JS
; Ahn YH
; Won HS
; Sun S
; Kim YH
; Ko YH
Biomed Res Int
2017[]; 2017
(ä): 1928021
PMID28321402
show ga
Background/Aims. The miRNA-200 (miR-200) family may act as key inhibitors of
epithelial-to-mesenchymal transition. However, the potential prognostic value of
miR-200s in various human malignancies remains controversial. This meta-analysis
analyzed the associations between miR-200 levels and survival outcomes in a
variety of tumors. Methods. Eligible published studies were identified by
searching the Embase, PubMed, CINAHL, and Google scholar databases. Patient
clinical data were pooled, and pooled hazard ratios (HRs) with 95% confidence
intervals (95% CI) were used to calculate the strength of this association.
Results. The pooled HRs suggested that high tissue expression of miR-200 family
members was associated with better survival (overall survival [OS]: HR = 0.70,
95% CI 0.54-0.91; progression-free survival [PFS]: HR = 0.63, 95% CI 0.52-0.76)
in thirty-four eligible articles. In contrast, higher expression of circulating
miR-200 members was significantly associated with poor clinical outcome (OS, HR =
1.68, 95% CI 1.15-2.46; PFS, HR = 2.62, 95% CI 1.68-4.07). Conclusion. The
results from this meta-analysis suggest that miR-200 family members are potential
prognostic biomarkers in patients with various carcinomas. To apply these
findings in the clinic, large prospective studies are needed to validate the
prognostic values of miR-200s in individual cancer types.