Decreased Expression of Long Non-coding RNA MEG3 Acts As a Potential Predictor Biomarker in Progression and Poor Prognosis of Osteosarcoma

Overview

Journal Int J Clin Exp Pathol

Specialty Pathology

Date 2016 Jan 30

PMID 26823857

Citations 53

Authors

Zhi-Zhong Tian

Xin-Jun Guo

Yong-Ming Zhao

Yuan Fang

Affiliations

Soon will be listed here.

Abstract

Introduction: Long non-coding RNA MEG3 (lncRNA MEG3) has been showed to involve in a variety of cancers. However, the association between lncRNA MEG3 expression level and the prognosis of osteosarcoma is still unclear.

Methods: The expression levels of lncRNA MEG3 in osteosarcoma tissues and adjacent non-tumor tissues were detected using quantitative real-time PCR (qRT-PCR). Differences in patient survival were determined using the Kaplan-Meier method and a log-rank test. A Cox proportional hazards regression analysis was used for univariate and multivariate analyses of prognostic values.

Results: Our findings showed that expression of lncRNA MEG3 was clearly lower in osteosarcoma tissues compared with adjacent non-tumor tissues. The expression of lncRNA MEG3 was associated with clinical stage and distant metastasis (P<0.05). Kaplan-Meier analysis showed that patients with low lncRNA MEG3 expression had a shorter overall survival (log-rank test, P<0.05). Furthermore, multivariate analysis revealed that decreased expression of lncRNA MEG3, advanced clinical stage and distant metastasis were all independent predictors to overall survival of osteosarcoma patients.

Conclusions: Downregulation of lncRNA MEG3 was associated with poor overall survival of osteosarcoma. LncRNA MEG3 could be a useful biomarker for progression and prognosis of osteosarcoma.

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