rhPDGF-BB promotes migration of bone marrow stromal stem cells in diabetic rats

doi:10.19439/j.sjos.2018.06.004

Abstract

Abstract: PURPOSE: To evaluate the effect of different concentrations of rhPDGF-BB on bone marrow stromal stem cells(BMSCs) migration in diabetic rat, and related mechanisms of SDF-1 and its G-protein conjugated receptor regulation, provide a theoretical basis for the application of rhPDGF-BB to diabetic patients for bone regeneration therapy. METHODS: Animal model with diabetes were induced by streptozotocin in rats. BMSCs of diabetic rats were cultured in vitro as the control group. Transwell chemokinesis model was adopted to detect the chemokinesis of BMSCs in vitro with rhPDGF-BB at concentrations of 0, 10, 50, and 100 ng/mL, and real-time PCR was used to detect the expression of BMSCs SDF-1, CXCR4 mRNA, determine the optimum concentration of the drug. The regulatory effects of rhPDGF-BB on SDF-1 and CXCR4 expression of BMSCs were confirmed in reverse with PI3K/Akt inhibitor. Statistical analysis of the data was performed using SPSS 17.0 software package. RESULTS: In diabetic rats induced by streptozotocin, one week later, the rat tail vein blood glucose concentration higher than 16.7 mmol/L was selected as the successful model rats. Compared with BMSCs in diabetic rats, rhPDGF-BB promoted BMSCs migration in diabetic rats, 50 ng/mL rhPDGF-BB was the optimal concentration in diabetic rats, and PI3K/Akt inhibitors significantly inhibited the migration of BMSCs in diabetic rats. CONCLUSIONS: rhPDGF-BB promotes the migration of diabetic rat BMSCs and regulates its migration by regulating SDF-1/CXCR4 axis.

Key words: rhPDGF-BB, BMSCs, Migration, Diabetes mellitus

CLC Number:

R783.4

WANG De-fang, LIU Yan, WANG Jue. rhPDGF-BB promotes migration of bone marrow stromal stem cells in diabetic rats[J]. Shanghai Journal of Stomatology, 2018, 27(6): 579-584.

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