期刊
JOURNAL OF DENTAL RESEARCH
卷 83, 期 8, 页码 590-595出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/154405910408300802
关键词
dentin regeneration; stem cell therapy; BMP2; dental pulp-capping; pellet culture
Regenerative medicine is based on stem cells, signals, and scaffolds. Dental pulp tissue has the potential to regenerate dentin in response to noxious stimuli, such as caries. The progenitor/stem cells are responsible for this regeneration. Thus, stem cell therapy has considerable promise in dentin regeneration. Culture of porcine pulp cells, as a three-dimensional pellet, promoted odontoblast differentiation compared with monolayers. The expression of dentin sialophosphoprotein ( Dspp) and enamelysin/matrix metalloproteinase 20 (MMP20) mRNA confirmed the differentiation of pulp cells into odontoblasts and was stimulated by the morphogenetic signal, bone morphogenetic protein 2 (BMP2). Based on the in vitro experiments, an in vivo evaluation of pulp progenitor/stem cells in the dog was performed. The autogenous transplantation of the BMP2-treated pellet culture onto the amputated pulp stimulated reparative dentin formation. In conclusion, BMP2 can direct pulp progenitor/stem cell differentiation into odontoblasts and result in dentin formation.
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