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Journal Article
Vascularization of Engineered Teeth
2008
Overview
The implantation of cultured dental cell-cell re-associations allows for the reproduction of fully formed teeth, crown morphogenesis, epithelial histogenesis, mineralized dentin and enamel deposition, and root-periodontium development. Since vascularization is critical for organogenesis and tissue engineering, this work aimed to study: (a) blood vessel formation during tooth development, (b) the fate of blood vessels in cultured teeth and re-associations, and (c) vascularization after in vivo implantation. Ex vivo, blood vessels developed in the dental mesenchyme from the cap to bell stages and in the enamel organ, shortly before ameloblast differentiation. In cultured teeth and re-associations, blood-vessel-like structures remained in the peridental mesenchyme, but never developed into dental tissues. After implantation, both teeth and re-associations became revascularized, although later in the case of the re-associations. In implanted re-associations, newly formed blood vessels originated from the host, allowing for their survival, and affording conditions organ growth, mineralization, and enamel secretion.
Publisher
SAGE Publications,SAGE PUBLICATIONS, INC
Subject
/ Animals
/ Blood Vessels - growth & development
/ CD31
/ Cell Differentiation - physiology
/ Enamel Organ - growth & development
/ Epithelium - growth & development
/ Mice
/ Neovascularization, Physiologic - physiology
/ Periodontium - growth & development
/ Platelet Endothelial Cell Adhesion Molecule-1 - analysis
/ tooth
/ Tooth Calcification - physiology
/ Tooth Crown - growth & development
/ Tooth Germ - growth & development
/ Tooth Root - growth & development
/ Vascular Endothelial Growth Factor Receptor-2 - analysis
/ VEGFR
