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Analysis and Imaging of Osteocytes
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MicroRNAs and osteocytes.

Lilian I Plotkin1, Joseph M Wallace2

  • 1Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, USA; Indiana Center for Musculoskeletal Health, USA.

Bone
|May 9, 2021
PubMed
Summary
This summary is machine-generated.

MicroRNAs regulate about 30% of the human genome and play key roles in bone cell biology. This review details the current understanding of microRNA effects on osteocyte function and biology.

Keywords:
Bone cellExosomeOsteocytemicroRNA

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Area of Science:

  • Molecular Biology
  • Genetics
  • Cell Biology

Background:

  • MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression.
  • They are known to influence various cellular processes, including bone cell differentiation and function.
  • Osteocytes, the most abundant cells in bone, are increasingly recognized for their roles in bone homeostasis and as targets/producers of miRNAs.

Purpose of the Study:

  • To review the current knowledge on the biological effects of microRNAs on osteocyte function.
  • To summarize the reported roles of microRNAs in osteocyte differentiation and biology.
  • To highlight osteocytes as both producers and targets of microRNA action.

Main Methods:

  • Literature review of studies investigating microRNA involvement in bone cells.
  • Focus on research published from 2007 onwards, with specific attention to osteocyte-related studies from 2010.
  • Synthesis of findings regarding microRNA regulation in osteocyte differentiation and biology.

Main Results:

  • MicroRNA-223 was identified as essential for osteoclast differentiation in 2007.
  • The microRNA cluster 23a~27a~24-2 was shown to regulate osteocyte differentiation in 2010.
  • Recent studies report osteocytes as both producers and targets of microRNA actions, influencing their biology.

Conclusions:

  • MicroRNAs significantly impact osteocyte biology, affecting differentiation and function.
  • Osteocytes are integral to microRNA-mediated regulation within bone tissue.
  • Further research is needed to fully elucidate the complex roles of microRNAs in osteocyte biology.