Header

UZH-Logo

Maintenance Infos

Collagen hydrogels strengthened by biodegradable meshes are a basis for dermo-epidermal skin grafts intended to reconstitute human skin in a one-step surgical intervention


Hartmann-Fritsch, Fabienne; Biedermann, Thomas; Braziulis, Erik; Luginbühl, Joachim; Pontiggia, Luca; Böttcher-Haberzeth, Sophie; van Kuppevelt, Toin H; Faraj, Kaeuis A; Schiestl, Clemens; Meuli, Martin; Reichmann, Ernst (2016). Collagen hydrogels strengthened by biodegradable meshes are a basis for dermo-epidermal skin grafts intended to reconstitute human skin in a one-step surgical intervention. Journal of Tissue Engineering and Regenerative Medicine, 10(1):81-91.

Abstract

Extensive full-thickness skin loss, associated with deep burns or other traumata, represents a major clinical problem that is far from being solved. A promising approach to treat large skin defects is the use of tissue-engineered full-thickness skin analogues with nearly normal anatomy and function. In addition to excellent biological properties, such skin substitutes should exhibit optimal structural and mechanical features. This study aimed to test novel dermo-epidermal skin substitutes based on collagen type I hydrogels, physically strengthened by two types of polymeric net-like meshes. One mesh has already been used in clinical trials for treating inguinal hernia; the second one is new but consists of a FDA-approved polymer. Both meshes were integrated into collagen type I hydrogels and dermo-epidermal skin substitutes were generated. Skin substitutes were transplanted onto immuno-incompetent rats and analyzed after distinct time periods. The skin substitutes homogeneously developed into a well-stratified epidermis over the entire surface of the grafts. The epidermis deposited a continuous basement membrane and dermo-epidermal junction, displayed a well-defined basal cell layer, about 10 suprabasal strata and a stratum corneum. Additionally, the dermal component of the grafts was well vascularized.

Abstract

Extensive full-thickness skin loss, associated with deep burns or other traumata, represents a major clinical problem that is far from being solved. A promising approach to treat large skin defects is the use of tissue-engineered full-thickness skin analogues with nearly normal anatomy and function. In addition to excellent biological properties, such skin substitutes should exhibit optimal structural and mechanical features. This study aimed to test novel dermo-epidermal skin substitutes based on collagen type I hydrogels, physically strengthened by two types of polymeric net-like meshes. One mesh has already been used in clinical trials for treating inguinal hernia; the second one is new but consists of a FDA-approved polymer. Both meshes were integrated into collagen type I hydrogels and dermo-epidermal skin substitutes were generated. Skin substitutes were transplanted onto immuno-incompetent rats and analyzed after distinct time periods. The skin substitutes homogeneously developed into a well-stratified epidermis over the entire surface of the grafts. The epidermis deposited a continuous basement membrane and dermo-epidermal junction, displayed a well-defined basal cell layer, about 10 suprabasal strata and a stratum corneum. Additionally, the dermal component of the grafts was well vascularized.

Statistics

Citations

Dimensions.ai Metrics
9 citations in Web of Science®
4 citations in Scopus®
13 citations in Microsoft Academic
Google Scholar™

Altmetrics

Downloads

1 download since deposited on 01 Feb 2016
0 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Children's Hospital Zurich > Clinic for Surgery
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:January 2016
Deposited On:01 Feb 2016 15:27
Last Modified:02 Feb 2018 09:45
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:1932-6254
OA Status:Closed
Publisher DOI:https://doi.org/10.1002/term.1665
PubMed ID:23229842
Project Information:
  • : FunderFP7
  • : Grant ID279024
  • : Project TitleEUROSKINGRAFT - A novel generation of skin substitutes to clinically treat a broad spectrum of severe skin defects
  • : FunderFP7
  • : Grant ID238551
  • : Project TitleMULTITERM - Training Multidisciplinary scientists for Tissue Engineering and Regenerative Medicine

Download