Fig. 5

Protein expression level was detected by WB, Control: Normal culture conditions without treatment, BMP-2@Pluronic-F127: Cells treated with BMP-2 encapsulated in Pluronic-F127, NGF@Pluronic-F127: Cells treated with NGF encapsulated in Pluronic-F127, NGF/BMP-2@Pluronic-F127: Cells treated with a co-delivery system of NGF and BMP-2 in Pluronic-F127, *(p < 0.05), **(p < 0.01), ***(p < 0.001) (n = 3).