Abstract
BackgroundTriple-negative breast cancer (TNBC) is one of the most malignant subtypes of breast cancer with an unsatisfied prognosis. Effective biomarkers could predict the risk and improve patients’ survival. Whether LINC00466 possesses the potential to serve as a biomarker of the progression and prognosis of TNBC was evaluated. Materials and MethodsA total of 122 TNBC patients were included in this study and provided paired clinical tissues. The expression of LINC00466 in TNBC was evaluated by RT-qPCR and evaluated the clinical significance with a series of statistical analyses. The biological effects and the mechanism were investigated in TNBC cells with CCK8, Transwell, and luciferase reporter assays. ResultsLINC00466 was significantly upregulated in TNBC and showed close association with the clinical features of patients, which indicates the development, and severity of patients. LINC00466 functioned as a prognostic biomarker predicting the survival of patients and a tumor promoter improving the proliferation, migration, and invasion of TNBC cells through sponging miR-539-5p. ConclusionLINC00466 promotes the progression of TNBC via regulating miR-539-5p. The inhibition of LINC00466 might be a novel therapeutic strategy for TNBC.
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