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An improved method to isolate primary human osteocytes from bone.

Anne Bernhardt1, Sophie Wolf2, Emilia Weiser2

  • 1Centre for Translational Bone, Joint and Soft Tissue Research, Technische Universität und Universitätsklinikum Dresden, Fetscherstr. 74, D-01309 Dresden, Germany.

Biomedizinische Technik. Biomedical Engineering
|July 27, 2019
PubMed
Summary

This study presents an improved method for isolating human primary osteocytes, crucial for bone metabolism research. Enhanced protocols yield more viable osteocytes for biomaterial and drug testing.

Keywords:
collagenase digestosteocalcinosteocyte isolation

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Area of Science:

  • Biomedical Engineering
  • Cell Biology
  • Orthopedics

Background:

  • Osteocytes are vital for bone metabolism, mechanosensing, and endocrine functions.
  • In vitro osteocyte studies are essential for biomaterial and drug development.
  • Isolating primary human osteocytes from mineralized bone matrix is challenging.

Purpose of the Study:

  • To develop an improved protocol for isolating human primary osteocytes.
  • To enhance the yield and viability of primary osteocytes for research applications.

Main Methods:

  • A modified protocol involving resting steps between demineralization and digestion of bone particles.
  • Real-time polymerase chain reaction (PCR) for gene expression analysis.

Main Results:

  • The improved protocol significantly increased the yield of human primary osteocytes.
  • Osteocyte marker gene expression (osteocalcin, E11/podoplanin, DMP-1) was confirmed via real-time PCR.

Conclusions:

  • The enhanced isolation protocol provides a more efficient method for obtaining primary human osteocytes.
  • This advancement facilitates in vitro research using human osteocytes for bone-related studies.