Abstract
Objective: To establish composite culture system of rat bone marrow mesenchymal stem cells (BMSCs) and self-assembling peptide hydrogel RADA16-І, and to investigate the effect of RADA16-І hydrogel on neural differentiation of BMSCs. Methods: BMSCs were isolated, cultivated and labeled with green fluorescent protein (GFP), then they were inoculated on glass coverslips or in RADA16-І solution to form control group and RADA16-І group respectively. The morphological changes of BMSCs induced by neural induction medium were observed, and GFAP, NeuN and Map-2 expressions of BMSCs in each group were detected with immunofluorescence. Results: The induced BMSCs presented neuron-like change, and the rates of GFAP and NF-200 positive cells in RADA16-І group were higher than that in control group (P < 0.05). Conclusion: Self-assembling peptide RADA16-І hydrogel can promote neural differentiation of BMSCs, and which may be used as scaffold material on BMSCs transplantation for treatment of nervous system diseases.
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