期刊
UROLOGIC ONCOLOGY-SEMINARS AND ORIGINAL INVESTIGATIONS
卷 35, 期 5, 页码 294-299出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.urolonc.2016.12.007
关键词
Cell-free urine; miR-210; Liquid biopsy; Clear cell renal cell carcinoma
资金
- la Ligue Nationale contre le Cancer du Comite de la Loire, France
Background: Recent findings show that cell-free miRNAs are stable in biological fluid. Urine provides an alternative to blood serum or plasma as a potential source of tumor biomarkers. MiR-210 is proven to be overexpressed in patients with a clear cell renal cell carcinoma (ccRCC). The purpose of this pilot study was to examine the urinary cell-free miR-210 as a potential tool of liquid biopsy for ccRCC. Methods: Overall, 75 patients with a ccRCC and 45 control subjects without a cancer were included in this study. Urine samples were centrifuged twice and the cell-free urine supernanants were stored in 80 degrees C until use. A total of 350 ill cell-free urine was used for the extraction of total RNA. The expression levels of these miRNAs were performed by using quantitative RT-PCR. Results: The level of urinary cell-free miR-210 was significantly higher in patients with ccRCC than in control subjects (P < 0.001). The urinary cell-free miR-210 yielded the areas under the receiver operating characteristics curve of 0.76 in discriminating the patients with ccRCC from the control subjects with a sensitivity of 57.8% and a specificity of 80.0%. Moreover, the expression level of urinary cell-free miRNA-210 was significantly decreased in the patients a week after surgery (P < 0.001). Conclusion: Urinary cell-free miR-210 may be used as a potential tool of liquid biopsy for ccRCC diagnosis. Further studies are needed to confirm our results. (C) 2017 Published by Elsevier Inc.
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