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Serum microRNA-15a level acts as a potential diagnostic and prognostic biomarker for human esophageal squamous cell carcinoma



Serum microRNA-15a level acts as a potential diagnostic and prognostic biomarker for human esophageal squamous cell carcinoma



Cancer Biomarkers 18(1): 11-17



Clinical significance of microRNA (miR)-15a in human esophageal squamous cell carcinoma (ESCC) remains unclear. To evaluate the expression level of miR-15a and to determine its potential for diagnosis and prognosis in ESCC. Quantitative reverse transcription polymerase chain reaction was performed to examine the expression levels of miR-15a in ESCC tissues and patients' sera. The diagnostic and prognostic implications of serum miR-15a level in human ESCC were further evaluated. Expression levels of miR-15a in ESCC tissues and patients' sera were significantly decreased (both P< 0.001). Additionally, serum miR-15a had an optimal diagnostic cut-off point (2.29) for ESCC with sensitivity of 86.36% and specificity of 100.00%. Moreover, low serum miR-15a level more frequently occurred in ESCC patients with advanced tumor-node-metastasis, T and N stages (all P= 0.01) and poor tumor differentiation (P= 0.03). The Kaplan-Meier curve showed that low miR-15a expression was significantly associated with shorter overall survival (OS) and disease-free survival (DFS) of ESCC patients (both P< 0.001). Further multivariate analysis identified miR-15a as an independent prognostic factor for both OS and DFS (both P= 0.01). Decreased expression of miR-15a may play a crucial role in ESCC development and progression. Serum miR-15a level could be used as a potential diagnostic and prognostic marker in clinics.

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Accession: 058835691

Download citation: RISBibTeXText

PMID: 27802201

DOI: 10.3233/cbm-160667


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