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  • Title: Human deciduous teeth dental pulp cells with basic fibroblast growth factor enhance wound healing of skin defect.
    Author: Nishino Y, Ebisawa K, Yamada Y, Okabe K, Kamei Y, Ueda M.
    Journal: J Craniofac Surg; 2011 Mar; 22(2):438-42. PubMed ID: 21403563.
    Abstract:
    In this research, we examined the effect on wound healing applying basic fibroblast growth factor (b-FGF) that is approved for clinical use to enhance wound healing and human deciduous teeth dental pulp cells (hDPCs) in clinics, but that have been attracting attention as a novel stem cell source in recent years. Human deciduous teeth were harvested from healthy volunteers, and hDPCs were isolated. We used a nude mouse full-thickness skin defect model and evaluated wound healing by macroscopic view and histologic and histomorphometric analysis. The mice were randomly divided into 4 groups: phosphate-buffered saline-treated group (control group), b-FGF-treated group (b-FGF group), hDPC-treated group (hDPC group), and hDPC and b-FGF-treated group (hDPC/b-FGF group). Basic fibroblast growth factor and hDPC groups accelerated wound healing compared with the control group. There was no statistically significant difference in wound healing observed between the hDPC and b-FGF groups. The hDPC/b-FGF group demonstrated accelerated wound healing compared with other groups. At day 14, PKH26-positive cells were surrounded by human type I collagen in hDPC and hDPC/b-FGF groups in immunohistologic evaluation. Significantly increased collagen fibril areas in wound tissues were observed in b-FGF, hDPC, and hDPC/b-FGF groups as compared with the control group at days 7 and 14. Our results showed that the hDPC/b-FGF group significantly promotes wound healing compared with other groups. This study implies that deciduous teeth that are currently considered as medical spare parts might offer a unique stem cell resource for potential of new cell therapies for wound healing in combination with b-FGF.
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