Abstract
Recently, increasing evidence has indicated that lncRNAs may play a critical role in the progression of oral cancer (OC). However, whether lncRNA-ANRIL is involved in the tumorigenesis of OC remains undetermined. In the present study, ANRIL showed significantly higher, while miR-125a showed lower, expression in OC tissues and sera than in normal controls. MTT, colony formation, flow cytometry analysis, wound-healing, transwell and mice xenograft model assays were used to detect the proliferation, migration, and invasion of ARNIL-overexpressing HB56 cells and ARNIL-knockdown CAL27 cells. The results showed that cell proliferation, migration, and invasion were significantly increased by ARNIL overexpression and decreased by ARNIL silencing in oral cancer cells. Furthermore, we found a negative correlation between ARNIL and miR-125a, and ARNIL acts as a miRNA-sponge by directly interacting with miR-125a.
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