Abstract
Background
The treatment of difficult-to-treat wounds can be challenging. Although a number of approaches have been investigated, the healing process may be slow and unsatisfactory. An alternative approach is the use of a continuous sheet of skin cells applied over a wound which may improve cell implantation and patient recovery.
Objectives
To analyse the gene expression profile of fibroblast/keratinocyte co-culture on poly(tri[ethylene glycol] ethyl ether methacrylate) (P[TEGMA-EE]), a thermoresponsive biocompatible surface.
Materials and Methods
Cultures were grown for 72 hours as a continuous layer on P(TEGMA-EE). Assays for genotoxicity, cell morphology, and fluorescence-assisted flow cytometry were performed to exclude adverse effects. A gene expression profile related to the extracellular matrix was investigated by microarray analysis.
Results
for fibroblast monocultures and fibroblast/keratinocyte co-cultures maintained for 72 hours on P(TEGMA-EE), no change in morphology or specific surface markers, or DNA damage (comet assay) was observed, relative to control surface. Moreover, no detrimental impact was ascertained based on microarray analysis. In response to lowered temperature, the detachment of a continuous cell layer sheet from the thermoresponsive surface was observed. When gene expression was compared between fibroblasts cultured alone and co-cultured with keratinocytes on P(TEGMA-EE), 10 genes were shown to be differentially expressed. Of these genes, six were significantly differentially expressed between cultures grown on P(TEGMA-EE) and human skin samples.
Conclusion
Our results indicate that P(TEGMA-EE) is fully biocompatible and is therefore a suitable surface for successful preparation and recovery of two-layered fibroblast/keratinocyte co-culture as a continuous sheet of cells.
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Lesiak, M., Sieroń, Ł., Gutmajster, E. et al. Fibroblast and keratinocyte crosstalk: the effect of a poly(tri[ethylene glycol] ethyl ether methacrylate) thermoresponsive surface on short-term co-culture. Eur J Dermatol 29, 126–140 (2019). https://doi.org/10.1684/ejd.2019.3561
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DOI: https://doi.org/10.1684/ejd.2019.3561