Tissue reactions to collagen scaffolds in the oral mucosa and skin of rats: Environmental and mechanical factors

Richard G. Jansen, Toin H. van Kuppevelt, Willeke F. Daamen, Anne Marie KuiJpers-Jagtman, Johannes W. Von den Hoff*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

29 Citations (Scopus)

Abstract

Objective: To compare the tissue reactions to implanted Collagen scaffolds in the palate and the skin of rats.

Design: Crosslinked collagen scaffolds were implanted submucoperiosteally in the palate, and subcutaneously on the skull and on the back of 25 rats and evaluated after up to 16 weeks. On H&E-stained sections, the cell density and the number of giant cells within the scaffolds were determined. Blood vessels, inflammatory cells, and myofibroblasts were detected by immunohistochemistry.

Results: A faster ingrowth of myofibroblasts and blood vessels in the palate was found during the first week compared with the skin. A more severe inflammatory response was initially found in the back skin. Furthermore, about twice as much giant cells were present in these scaffolds.

Conclusion: The oral environment seems to promote the ingrowth of myofibroblasts and blood vessels into the scaffolds. Mechanical stimuli seem to enhance the initial inflammatory response. Overall, the scaffolds were gradually integrated within the host tissue, eliciting only a transient inflammatory response. The scaffolds were biocompatible and are promising for future applications in oral surgery.

Original languageEnglish
Pages (from-to)376-387
Number of pages12
JournalArchives of Oral Biology
Volume53
Issue number4
DOIs
Publication statusPublished - Apr-2008
Externally publishedYes

Keywords

  • collagen
  • scaffold
  • wound healing
  • animal model
  • in vivo test
  • HEALING PALATAL WOUNDS
  • ENDOTHELIAL GROWTH-FACTOR
  • PERCUTANEOUS DEVICES
  • SCAR FORMATION
  • BEAGLE DOG
  • MYOFIBROBLASTS
  • FIBROBLASTS
  • CONTRACTION
  • MATRICES
  • ACTIN

Fingerprint

Dive into the research topics of 'Tissue reactions to collagen scaffolds in the oral mucosa and skin of rats: Environmental and mechanical factors'. Together they form a unique fingerprint.

Cite this