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The tick tock of odontogenesis
Li Zheng1, Lauren Ehardt2, Blake McAlpin2
1Department of Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA; Department of Otolaryngology, Medical School, University of Michigan, Ann Arbor, MI, USA.
Experimental Cell Research
|March 4, 2014
Summary
Daily rhythms controlled by clock genes are crucial for dental hard tissue formation. This review highlights how these circadian mechanisms regulate enamel development and maturation.
Area of Science:
- Dental Biology
- Chronobiology
- Mineralized Tissue Development
Background:
- Significant gaps exist in understanding dental hard tissue formation and its daily regulation.
- Tooth shape complexity and functional adaptation are not fully explained by current models.
- Emerging evidence links circadian clock genes to mineralized tissue development.
Purpose of the Study:
- To review current knowledge on circadian control of dental mineralized tissue development.
- To emphasize the role of clock genes in amelogenesis (enamel formation).
- To bridge the knowledge gap in the daily regulation of tooth formation.
Main Methods:
- Literature review of studies on circadian rhythms and dental development.
- Analysis of research on clock gene expression in dental tissues.
- Synthesis of findings related to amelogenesis and circadian modulation.
Main Results:
- Circadian clock genes play a significant role in regulating dental hard tissue formation.
- Enamel formation involves rhythmical molecular signals occurring in 24-hour cycles.
- Gene expression and ameloblast functions are modulated at regular daily intervals.
Conclusions:
- Circadian rhythms are integral to the precise control of dental mineralized tissue development.
- Understanding these daily controls is key to explaining complex tooth morphology.
- Clock genes are essential regulators of amelogenesis, impacting enamel matrix secretion and maturation.
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