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MicroRNAs and micromanaging the skeleton in disease, development and evolution

Xinjun He1, Johann K Eberhart, John H Postlethwait

  • 1Institute of Neuroscience, University of Oregon, Eugene, USA.

Journal of Cellular and Molecular Medicine
|February 18, 2009
PubMed

Insights

MicroRNAs regulate gene expression and are linked to skeletal development and diseases. Variations in microRNAs may explain craniofacial evolution and age-related bone conditions like osteopenia.

Area of Science:

  • Genetics and Molecular Biology
  • Developmental Biology
  • Evolutionary Biology

Background:

  • MicroRNAs (miRNAs) are crucial regulators of post-transcriptional gene expression.
  • miRNAs play significant roles in human development and are implicated in various diseases.
  • Understanding miRNA involvement in skeletal development is essential for addressing congenital malformations and age-related bone disorders.

Purpose of the Study:

  • To review recent advancements in microRNA research concerning skeletal malformations.
  • To explore the role of microRNAs in the evolution of skeletal morphologies, particularly craniofacial structures.
  • To propose a hypothesis linking microRNA variations to craniofacial evolution, human diseases, and age-related osteopenia.

Main Methods:

  • Literature review of recent studies on microRNAs and skeletal biology.
  • Analysis of the proposed hypothesis regarding evolutionary and disease-related roles of microRNAs.
  • Synthesis of current knowledge on microRNA function in gene regulation and development.

Main Results:

  • MicroRNAs are key regulators of gene expression impacting skeletal development.
  • Evidence suggests microRNAs are involved in skeletal malformations like cleft palate.
  • Evolutionary changes in microRNA expression or binding sites may drive craniofacial diversity.

Conclusions:

  • MicroRNA variations are proposed as a significant factor in the evolution of craniofacial structures.
  • Alterations in microRNAs can contribute to the development of human craniofacial diseases.
  • Changes in microRNA patterns may underlie age-related physiological changes such as osteopenia.

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