Abstract
The MYB family of transcription activators has been associated with a high proliferation rate and an undifferentiated state of cells in a number of tissues. Recently emerging data suggest that these molecules may also play a role in differentiation. In this study, the pattern of expression of c-MYB was followed during postnatal stages of mouse molar odontogenesis using immunohistochemistry on serial sections. Along with an abundance of the c-MYB protein in proliferating zones, we confirmed the presence of this protein in differentiated ameloblasts, odontoblasts, and osteoblasts. In addition, c-MYB was also found in cementoblasts and alveolar fibroblasts. These findings suggest integration of c-MYB into regulatory networks during hard-tissue differentiation and mineralization.
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