Down-regulation of miR-124 target protein SCP-1 inhibits neuroglioma cell migration

OBJECTIVE: MicroRNAs (miRNAs) have been widely studied as a potential cancer agent, but its efficacy does not get improvement due to poor targeting. miRNAs have been reported to play multiple roles in the development of the tumor. miR-124 is expressed in various tumor. This study aimed to elucidate the expression of miR-124 in neuroglioma cells as well as its related mechanism. MATERIALS AND METHODS: Expression of miR-124 in neuroglioma cells was assessed by Quantitative PCR (q-PCR). Astrocytes (RA cells) were used as control group. The relationship between miR-124 and SCP-1 was explored with bioinformatics tools. Luciferase reporter assay was performed to examine the expression of miR-124 target protein SCP-1. Gene interference technology was used to regulate expression of miR-124 and SCP-1 in neuroglioma cells, and q-PCR was performed to confirm gene interference effects. Migration of miR124 and SCP-1 in neuroglioma cell was measured by wound healing assay and cell migration test. RESULTS: Compared with control group, the expressions of miR-124 (p= 0.0015) and SCP-1 (p= 0.0042) were higher in neuroglioma cells. Luciferase reporter assay proved that SCP-1 was the target of miR-124. Wound healing assay and migration test showed down-regulation of SCP-1 inhibited neuroglioma cell migration. Down-regulation of miR-124 didn't influence neuroglioma cell migration movement. CONCLUSIONS: miR-124 and SCP-1 in neuroglioma cell were highly expressed. MiR-124 impeded the progression of neuroglioma via down-regulating SCP-1.