Journal
BURNS
Volume 35, Issue 4, Pages 527-537Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.burns.2008.08.021
Keywords
Decorin; TGF-beta(1); Fibroblasts; Hypertrophic scar; Contraction
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Funding
- Guangzhou Medical and Health Science Research Foundation [2007-ZDi-06]
- Guang-dong Medical Science Research Foundation [A2005566]
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Decorin was reported to bind transforming growth factor-beta (TGF-beta(1)) and neutralise some of its activity as a key regulator of wound contraction and hypertrophic scar formation. In this study, we investigated whether recombinant human decorin affected TGF-beta(1)-induced fibroblast contractile activity, by using fibroblast-populated collagen lattice with decorin added to the collagen gel. Hypertrophic scar fibroblasts showed greater basal contraction of collagen gels than normal fibroblasts, and the addition of TGF-beta(1) significantly enhanced this. Decorin inhibited both the basal and TGF-beta(1)-enhanced contraction of collagen gel by both normal and hypertrophic scar fibroblasts. Decorin also inhibited TGF-beta(1)-induced alpha-smooth muscle actin (alpha-SMA), plasminogen activator inhibitor-1 (PAI-1) protein and mRNA expressions in normal and hypertrophic scar fibroblasts. These results suggest that decorin may have therapeutic potential for excessive skin contraction as observed in hypertrophic scarring. (C) 2008 Elsevier Ltd and ISBI. All rights reserved.
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