Journal
BIOENGINEERING-BASEL
Volume 7, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/bioengineering7030067
Keywords
cell-based therapy; collagen-based matrix; tissue engineering; burn-related scars; wound healing
Funding
- Ministry of Science and Higher Education
- Ministry of Science and Higher Education via Innovative incubator 2.0 Centre for Technology Transfer JU [13/2019]
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Fibrosis of burn-related wounds remains an unresolved clinical issue that leads to patient disability. The aim of this study was to assess the efficacy of the transplantation of adipose-derived stromal cells seeded onto a collagen-based matrix in the reconstruction of burn-related scars. Here, we characterized an in vitro interaction between adipose-derived stromal cells and a collagen-based matrix, Integra(R)DRT. Our results show that transcription of pro-angiogenic, remodeling, and immunomodulatory factors was more significant in adipose-derived stromal cells than in fibroblasts. Transcription of metalloproteinases 2 and 9 is positively correlated with the collagenolytic activity of the adipose-derived stromal cells seeded onto Integra(R)DRT. The increase in the enzymatic activity corresponds to the decrease in the elasticity of the whole construct. Finally, we validated the treatment of a post-excision wound using adipose-derived stromal cells and an Integra(R)DRT construct in a 25-year-old woman suffering from burn-related scars. Scarless healing was observed in the area treated by adipose-derived stromal cells and the Integra(R)DRT construct but not in the reference area where Integra(R)DRT was applied without cells. This clinical observation may be explained by in vitro findings: Enhanced transcription of the vascular endothelial growth factor as well as remodeling of the collagen-based matrix decreased mechanical stress. Our experimental treatment demonstrated that the adipose-derived stromal cells seeded onto Integra(R)DRT exhibit valuable properties that may improve post-excision wound healing and facilitate skin regeneration without scars.
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