Fig. 4

Cells were prepared and injected into the DBM constructs. A Human DPSCs, SCAPs and PDLSCs were infected with Ad-GFP and Ad-BMP9 for 1 d before collection. B Representative images showing the process of implanting DBM constructs into the subcutaneous area of athymic nude mice. C Photographs showing the process of injecting the infected hDMSCs into the DBM constructs 7 days after implantation. D Schematic illustration of the whole procedure in our modified ectopic system from implanting the construct to injecting the cell suspension