A novel ex vivo culture model for inflammatory bone destruction

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygl

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Dangosydd eitem ddigidol (DOI)

  • A J Sloan
    Cardiff University
  • S Y Taylor
    Cardiff University
  • E L Smith
    Cardiff University
  • Jessica Roberts
    Cardiff University
  • L Chen
    Capital Medical University, Beijing, China
  • X Q Wei
    Cardiff University
  • R J Waddington
    Cardiff University

Pathological alterations in the balance of bone metabolism are central to the progression of inflammatory bone diseases such as periodontal disease. We have developed and characterized a novel ex vivo murine mandible model of inflammatory bone destruction. Slices of mandible were cultured for 14 days in the presence or absence of P. gingivalis lipopolysaccharide (LPS) or pro-inflammatory cytokines. Following culture, cell viability and tissue histomorphometry were assessed with quantification of matrix proteins, resident osteoclasts, ligament cells, monocytes, macrophages, and neutrophils. In the absence of inflammatory factors, culture viability, osteoclasts, and matrix components were maintained. LPS or TNFα stimulation demonstrated an increase in cellular proliferation, monocyte cells, osteoclast differentiation, and matrix degradation. Pathophysiological bone metabolism can be induced via exposure to LPS and direct influence of TNFα within the model despite the absence of systemic circulation, providing a model for inflammatory bone destruction and investigation of the effects of novel therapeutics.

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CyfnodolynJournal of Dental Research
Cyfrol92
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