Abstract
BackgroundPatients with intestinal‐type sinonasal adenocarcinoma (ITAC) have an unfavorable prognosis, and new diagnostic and therapeutic approaches are needed to improve clinical management.MethodsNext‐generation sequencing‐based miRNome analysis was performed on 43 ITAC patients who underwent surgical resection, and microRNA (miRNA) data were obtained from 35 cases. Four miRNAs were identified, and their expression levels were detected by reverse‐transcription quantitative polymerase chain reaction and related to the relevant patient outcome. Overall survival and disease‐free survival rates were evaluated through the Kaplan–Meier method and log‐rank test, and multivariate analysis was performed by means of Cox proportional hazard analysis.ResultsHigh levels of miR‐205 and miR‐34c/miR‐449 cluster expression were associated with an increased recurrence risk and, therefore, a worse prognosis. Multivariate analysis confirmed that miR‐205 and miR‐449 were significant prognostic predictors.ConclusionsA high expression of miR‐205 and miR‐449 is independent predictors of poor survival for ITAC patients.
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