Molecular regulatory mechanism of root development.
2011
: TGF-beta signaling is known to function during tooth formation. The authors' study investigated the role of TGF-beta signaling during tooth root development and determined how the common mediator for TGF-beta signaling, Smad4, affected root formation in mice. Smod4 was specifically inactivated in all epidermal-derived tissues by using a two-component genetic system. The authors' findings show that when Smad4 expression is eliminated in the dental epithelium, there is lack of root formation and severe crown defects.
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