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Article in Chinese | WPRIM | ID: wpr-446064

ABSTRACT

AIM:To investigate the effects of microRNA-193 (miR-193) on the proliferation and apoptosis of rat bone marrow mesenchymal stem cells (MSCs).METHODS:Cultured rat MSCs were transfected with pre-miR-193 or anti-miR-193 to regulate the expression of miR-193.The proliferation of the MSCs after transfection was evaluated by MTS assay, colorimetric BrdU cell proliferation assay and Ki-67 immunostaining.Cell apoptosis was analyzed by flow cytometry with Annexin V/PI staining.The effect of miR-193 on the expression of cell cycle-related proteins was evaluated by qRT-PCR.RESULTS:Transfection of pre-miR-193 or anti-miR-193 regulated the expression of miR-193 in MSCs effectively . Over-expression of miR-193 significantly promoted the proliferation of MSCs ( P0.05).The result of qRT-PCR indicated miR-193 promoted the expression of cyclin-dependent kinase 2 ( CDK2 ) significantly ( P<0.01).CONCLUSION:miR-193 promotes the proliferation of MSCs possibly through the CDK 2 pathway.

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