Abstract
BackgroundHepatocellular carcinoma (HCC) is one of the most commonly diagnosed cancer type. This study was aimed to investigate the role of microRNA‐584‐5p (miR‐584‐5p) in regulating HCC progression.MethodsThe expression of miR‐584‐5p in HCC cell lines was analyzed by quantitative real‐time polymerase chain reaction. Effects of miR‐584‐5p depletion on HCC cell proliferation, migration, and invasion in vitro were analyzed by cell counting kit‐8 assay, wound‐healing assay, and transwell invasion assay. miR‐584‐5p targeting potassium voltage‐gated channel subfamily E regulatory subunit 2 (KCNE2) was identified using bioinformatics algorithm and dual‐luciferase activity reporter assay. Kaplan–Meier Plotter website was used to investigate the effect of miR‐584‐5p or KCNE2 expression on the overall survival of HCC patients.ResultsIn vitro functional assays showed miR‐584‐5p depletion decreased HCC cell proliferation, cell migration, and cell invasion. Moreover, miR‐584‐5p functions by directly targeting KCNE2, and it in turn, mediates the effects of miR‐584‐5p on HCC cell behaviors.ConclusionsThese results demonstrated that miR‐584‐5p functions as an oncogenic miRNA in HCC.
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