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  • Title: Serum miR-542-3p as a prognostic biomarker in osteosarcoma.
    Author: Li Q, Song S, Ni G, Li Y, Wang X.
    Journal: Cancer Biomark; 2018 Feb 14; 21(3):521-526. PubMed ID: 29103020.
    Abstract:
    OBJECTIVE: Emerging evidence has suggested that circulating microRNAs (miRNAs) in body fluids have novel diagnostic and prognostic significance for patients with malignant diseases. The lack of useful biomarkers is a crucial problem of osteosarcoma (OS); Previous study has reported that miR-542-3p was significantly upregulated in osteosarcoma tissues and miR-542-3p may be as an oncogene in osteosarcoma pathogenesis. In our study, we investigated the circulating miR-542-3p and its clinical relevance in osteosarcoma. METHODS: Serum MiR-542-3p levels were determined by quantitative real-time PCR assays (qRT-PCR) in 76 patients with OS and 76 healthy volunteers. Patient survival analyses were performed by Kaplan-Meier analyses and Cox regression models. All statistical tests were two-sided. RESULTS: It was observed that the serum levels of miR-542-3p was significantly higher in patients with OS compared with the control groups (P< 0.01). High serum of miR-542-3p was significantly associated with advanced tumor stage and shorter survival (P< 0.01). ROC curve analysis calculated the ideal miR-542-3p cut-off value of 0.84 in prediction of OS, with a sensitivity of 53.8%, specificity of 93.6%, positive predictive value of 87.3% and negative predictive value of 63.7%. CONCLUSIONS: The results showed that serum miR-542-3p levels could serve as a non-invasive blood biomarker for tumor monitoring and prognostic prediction in osteosarcoma patients.
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