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Related Experiment Videos

Growth and development: hereditary and mechanical modulations.

Jeremy J Mao1, Hyun-Duck Nah

  • 1Department of Orthodontics, University of Illinois at Chicago, MC 841, 801 S. Paulina Street, Chicago, IL 60621, USA. jmao2@uic.edu

American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics
|June 5, 2004
PubMed
Summary

Environmental factors, especially mechanical forces, significantly influence genetic inheritance in growth and development. Understanding these interactions may lead to new therapies for craniofacial skeletal disorders.

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Area of Science:

  • Developmental Biology
  • Genetics
  • Bioengineering

Background:

  • Growth and development result from genetic inheritance modulated by environmental factors.
  • Mesenchymal cell differentiation into chondrogenic, osteogenic, and fibrogenic lineages drives ossification and sutural growth.
  • Cellular behaviors like migration, proliferation, and differentiation are guided by genes and environmental cues to shape craniofacial structures.

Purpose of the Study:

  • To explore the role of mechanical forces as key environmental cues in modulating craniofacial growth and development.
  • To investigate the common pathways shared by genetic and mechanical influences on growth.
  • To highlight the potential of integrated approaches for treating craniofacial skeletal dysplasias.

Main Methods:

Related Experiment Videos

  • Review of experimental evidence on mechanical forces affecting bone and cartilage growth.
  • Analysis of how mechanical strain regulates gene expression and cellular processes.
  • Conceptual framework integrating genetics, bioengineering, and quantitative biology.

    • Main Results:

    • Cyclic mechanical forces demonstrate significant anabolic responses in craniofacial sutures and cranial base cartilage.
    • Mechanical forces are transmitted as tissue and cell strain, regulating gene expression, proliferation, differentiation, and matrix synthesis.
    • Both hereditary and mechanical factors converge on common genetic pathways to regulate growth and development.

    Conclusions:

    • Mechanical forces are critical environmental modulators of craniofacial growth, acting through genetic pathways.
    • Combined genetic, bioengineering, and quantitative biology approaches offer new insights into growth mechanisms.
    • This understanding may pave the way for innovative therapies for various craniofacial skeletal anomalies and temporomandibular joint disorders.