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Molecular mechanisms in palatal rugae development.

Supaluk Trakanant1, Jun Nihara1, Maiko Kawasaki2

  • 1Division of Oral Anatomy, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8514, Japan; Division of Oral Orthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, 951-8514, Japan.

Journal of Oral Biosciences
|December 22, 2019
PubMed
Summary

Palatal rugae, or ridged structures on the palate, develop through genetic control in mammals. This review explores the molecular mechanisms behind this periodic patterning, offering insights into conserved developmental processes.

Keywords:
Molecular mechanismsPalatal rugae developmentTuring-type reaction-diffusion mechanism

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Area of Science:

  • Developmental Biology
  • Genetics
  • Comparative Anatomy

Background:

  • Periodic patterning of iterative structures is common in the animal kingdom.
  • Palatal rugae, conserved in all mammals, are periodic corrugated structures on the hard palate.
  • Rugae patterns are species-specific yet consistent within species, except in humans.

Purpose of the Study:

  • To review the molecular mechanisms of palatal rugae development.
  • To investigate the genetic commonality of developmental processes for periodic patterning.
  • To use palatal rugae as a model for understanding conserved developmental pathways.

Main Methods:

  • Literature review of studies on palatal rugae development.
  • Analysis of genetic and molecular data related to mammalian palate formation.
  • Comparative analysis across mammalian species.

Main Results:

  • Palatal rugae development is under strict genetic control in most mammals.
  • Understanding these mechanisms can elucidate shared genetic pathways in development.
  • The review synthesizes current knowledge on the molecular basis of rugae formation.

Conclusions:

  • Palatal rugae serve as an excellent model for studying the genetic control of periodic patterning.
  • Molecular mechanisms of rugae development highlight conserved developmental processes across mammals.
  • Further research can clarify the genetic underpinnings of species-specific variations.