JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Down-expression of miR-373 predicts poor prognosis of glioma and could be a potential therapeutic target.

OBJECTIVE: MicroRNAs (miRNAs) are epigenetic regulators of gene expression, and their deregulation plays an important role in human cancer, including glioma. The main objective of this work was to investigate the expression level of miR-373 and its clinical significance in glioma.

PATIENTS AND METHODS: The expression levels of miR-373 in glioma tissues and non-neoplastic brain tissues were measured by the qRT-PCR assay. Patients were divided into two groups based on the median miR-373 expression. The probability of differences in overall and progression-free survival as a function of time was ascertained by use of the Kaplan-Meier method. Cox regression analysis of factors potentially associated with survival was conducted to identify independent factors.

RESULTS: In clinical gastric cancer samples, we found that miR-373 expression was significantly down-regulated in glioma tissues compared with non-neoplastic brain tissues (p<0.01). Reduced expression of miR-373 was associated with serum WHO grade (p=0.015) and KPS score (p=0.001). Kaplan-Meier analysis indicated that patients with low level of miR-373 expression had poorer overall survival (OS) and progression-free survival (PFS). Multivariate survival analysis verified that miR-373 expression level was an independent predictor of both OS and PFS for glioma patients.

CONCLUSIONS: Our study showed miR-373 was associated to progression in glioma, and suggested it as a potential predictive factor for the prognosis of glioma.

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