MiR-195-5p inhibits the cell migration and invasion of cervical carcinoma through suppressing ARL2.

OBJECTIVE: MicroRNAs (miRNAs) have great effects on the progression of cervical cancer (CC). This study aimed to investigate the role of miR-195-5p in CC and to explain the regulatory mechanism between ARL2 and miR-195-5p. PATIENTS AND METHODS: Quantitative Real-Time-Polymerase Chain Reaction (qRT-PCR) was used to detect miR-195-5p levels in CC tissues and cell lines. Transwell assays for cell migration and invasion were also performed. A luciferase reporter assay was used to detect the direct target of miR-195-5p. The protein levels of ARL2 were measured by Western blot analysis. RESULTS: In CC tissues and cell lines, miR-195-5p expression was decreased. Downregulation of miR-195-5p was associated with higher FIGO stage, deep stromal invasion, and lymph node metastasis. Moreover, over-expression of miR-195-5p inhibited cell migration and invasion in CC. Furthermore, it was observed that miR-195-5p directly targeted ARL2, which affected the suppressive effect of miR-195-5p in CC. CONCLUSIONS: MiR-195-5p inhibited cell migration and invasion in CC by suppressing ARL2 expression. The miR-195/ARL2 axis may provide a pathway for cell metastasis in CC.