Mechanism of miR-148b inhibiting cell proliferation and migration of Schwann cells by regulating CALR.

The aim of this study is to investigate the effect of miR-148b on cell proliferation and migration of Schwann cells and explore its mechanism. The miR-148b group, miR-con group and the anti-miR-148b group, anti-miR-con group, si-con group, si-CALR group, Ctrl group, CALR group were transfected into Schwann cells by liposome method; the expression of miR-148b was detected by qRT-PCR; the cell viability was detected by MTT assay; the migration of cells was detected by Transwell method; WB assay was used to detect the protein expression of CALR. Firstly, we found that compared with miR-con group and si-con group, the proliferation and migration of miR-148b group and si-CALR group were significantly down-regulated (P < .05). Moreover, compared with anti-miR-con group and Ctrl group, anti-miR-148b group and CALR group cells proliferation and migration were significantly up-regulated (P < .05). In addition, miR-148b was targeted to CALR, and silencing CALR could reverse the inhibitory effect of miR-148b on Schwann cell proliferation and migration. In conclusion, miR-148b can regulate the proliferation and migration of Schwann cells. The mechanism may be related to the targeted negative regulation of CALR, which will provide a basis for targeted therapy of peripheral nerve injury.