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Role of taurine upregulated gene 1 as a predictor of poor outcome in osteosarcoma

 Department of Orthopedics, No. 187 Hospital of the People's Liberation Army, Haikou, Hainan 571159 Province, China

Correspondence Address:
Qi Chen,
Department of Orthopedics, No. 187 Hospital of the People's Liberation Army, Haikou, Hainan 571159 Province
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Source of Support: None, Conflict of Interest: None

Aims: Previous studies have found that long noncoding RNA taurine upregulated gene 1 (TUG1) can regulate osteosarcoma cells apoptosis and proliferation; the aim of this study was to investigate the clinical significance of TUG1 in osteosarcoma. Subjects and Methods: The expression of TUG1 was detected by real-time and quantitative polymerase chain reaction assay in 94 pairs of tumor tissues and corresponding noncancerous bone tissues of osteosarcoma patients. Its correlations with clinicopathologic features were analyzed, and the significance of TUG1 as a prognostic factor was determined. Results: This study shows that the expression of TUG1 in osteosarcoma tissues was significantly higher than that in adjacent normal bone tissues. Upregulation of TUG1 was significantly correlated with the larger tumor size and advanced tumor-node-metastases stage of osteosarcoma patients. Kaplan-Meier curve showed a decreased overall survival time of osteosarcoma patients with high TUG1 expression. Moreover, univariate and multivariate analyses suggested that low-expression level of TUG1 was an independent poor prognostic indicator for osteosarcoma patients. Conclusions: In conclusion, our data support TUG1 as a potential prognostic predictor and gene therapy target with its high expression in tumor tissues and its association with carcinogenesis and progression in osteosarcoma.

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