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Sonic hedgehog expression during early tooth development in Suncus murinus.

Mami Miyado1, Hidenao Ogi, Gen Yamada

  • 1Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan. mami-k.m@tky.ndu.ac.jp

Biochemical and Biophysical Research Communications
|September 12, 2007
PubMed
Summary
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Sonic hedgehog (Shh) expression in Suncus murinus tooth development reveals conserved roles in mammalian dental morphogenesis. This study clarifies Shh

Area of Science:

  • Developmental Biology
  • Oral Biology
  • Genetics

Background:

  • Tooth development involves complex epithelial-mesenchymal interactions.
  • Understanding molecular mechanisms is crucial for addressing human dental anomalies.
  • Sonic hedgehog (Shh) is a key signaling molecule in embryonic development.

Purpose of the Study:

  • To investigate the expression patterns of suncus Shh (sShh) during early tooth development in Suncus murinus.
  • To determine the role of Shh in mammalian tooth morphogenesis.
  • To explore the conservation of Shh function across mammalian species.

Main Methods:

  • Analysis of gene expression patterns.
  • In situ hybridization techniques.
  • Comparative developmental biology approach using Suncus murinus.

Related Experiment Videos

Main Results:

  • Suncus Shh (sShh) expression was initially broad in the dental epithelium along the mesial-distal axis.
  • Later, sShh expression became restricted to developing tooth primordia and enamel knots.
  • The observed expression patterns suggest a conserved role for Shh in mammalian tooth development.

Conclusions:

  • Sonic hedgehog (Shh) plays a significant role in early tooth development.
  • The expression patterns of Shh in Suncus murinus indicate conserved functions in mammalian tooth morphogenesis.
  • This research provides insights into the molecular basis of dental anomalies.