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Related Experiment Videos

Type III collagen in the intervertebral disc.

S Roberts1, J Menage, V Duance

  • 1Charles Salt Research Centre, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK.

The Histochemical Journal
|November 1, 1991
PubMed
Summary

Type III collagen, previously found only in pathological discs, is now isolated from normal human and bovine intervertebral discs. This collagen is localized around disc cells, suggesting a role in organizing their surrounding matrix.

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Area of Science:

  • Biochemistry
  • Cell Biology
  • Orthopedics

Background:

  • Collagen is a crucial component of the intervertebral disc extracellular matrix.
  • Type III collagen has been identified in various tissues but primarily in pathological intervertebral discs.
  • Understanding collagen distribution is vital for intervertebral disc health and disease research.

Purpose of the Study:

  • To isolate and characterize type III collagen from normal human and bovine intervertebral discs.
  • To investigate the localization of type III collagen within the intervertebral disc microenvironment across different species and ages.
  • To elucidate the potential role of type III collagen in the intervertebral disc structure and cell organization.

Main Methods:

  • Isolation of type III collagen from normal human and bovine intervertebral disc tissues.

Related Experiment Videos

  • Immunolocalization of type III collagen in intervertebral disc sections from rats, sheep, bovines, and humans.
  • Microscopic analysis to determine the cellular and matrix distribution of type III collagen.

    • Main Results:

    • Type III collagen was successfully isolated from normal human and bovine intervertebral discs.
    • Immunohistochemical staining revealed type III collagen localized primarily around intervertebral disc cells.
    • Disc cells were observed within 'chondron'-like structures, resembling those in articular cartilage.

    Conclusions:

    • Type III collagen is present in normal intervertebral discs, not exclusively in pathological conditions.
    • Type III collagen may play a role in organizing the pericellular environment of intervertebral disc cells.
    • The findings suggest type III collagen could link the chondron capsule to the interterritorial matrix, impacting disc structure.