Use of a novel porcine collagen paste as a dermal substitute in full-thickness wounds

Shevchenko, Rostislav, Sibbons, P.D., Sharpe, J.R. and James, S.Elizabeth (2008) Use of a novel porcine collagen paste as a dermal substitute in full-thickness wounds Wound Repair and Regeneration, 16 (2). pp. 198-207. ISSN 1067-1927

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A commercially available porcine collagen sheet material has been found previously to be useful as an implant for reconstructive surgery. However, its use as a dermal substitute has been hindered by slow cell penetration and vascularization. A novel paste formulation of this material was investigated for its potential role as a dermal substitute in full-thickness wounds. A porcine punch biopsy model was initially used to assess the integration of a wide range of material formulations. Selected formulations were then assessed further in a larger wound-chamber model. Paste formulations were compared with those of sheet and another commercially available dermal regeneration template. The porcine collagen paste became integrated into full-thickness wounds without rejection and without excessive inflammation. It was detected in wounds up to day 27 postimplantation. Porcine collagen paste was readily infiltrated by host cells by day 2 and supported migrating keratinocytes on its surface. Staining for endothelial cells indicated neovasculature formation as early as day 4 and functional newly formed microvessels were noted at day 7. This was comparable with neovascularization of an alternative and clinically proven dermal regeneration template and was significantly superior to the sheet material formulation at the same time points. Our findings suggest that porcine collagen paste may be suitable as an alternative to current dermal substitutes in full-thickness wounds.

Item Type: Journal article
Subjects: C000 Biological and Biomedical Sciences
B000 Health Professions
B000 Health Professions > B100 Anatomy Physiology and Pathology
DOI (a stable link to the resource): 10.1111/j.1524-475x.2008.00360.x
Faculties: Faculty of Science and Engineering > School of Pharmacy and Biomolecular Sciences
Depositing User: Converis
Date Deposited: 31 Aug 2010 08:35
Last Modified: 30 Apr 2015 08:45

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