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Assessing the inflammatory response to in vitro polymicrobial wound biofilms in a skin epidermis model
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Brown, Jason L., Townsend, Eleanor, Short, Robert D., Williams, Craig A., Woodall, Chris, Nile, Christopher J. and Ramage, Gordon (2022) Assessing the inflammatory response to in vitro polymicrobial wound biofilms in a skin epidermis model. npj Biofilms and Microbiomes, 8 (1). 19. doi:10.1038/s41522-022-00286-z ISSN 2055-5008.
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WRAP-assessing-inflammatory-response-in-vitro-polymicrobial-wound-biofilms-skin-epidermis-model-Townsend-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2042Kb) | Preview |
Official URL: https://doi.org/10.1038/s41522-022-00286-z
Abstract
Wounds can commonly become infected with polymicrobial biofilms containing bacterial and fungal microorganisms. Microbial colonization of the wound can interfere with sufficient healing and repair, leading to high rates of chronicity in certain individuals, which can have a huge socioeconomic burden worldwide. One route for alleviating biofilm formation in chronic wounds is sufficient treatment of the infected area with topical wound washes and ointments. Thus, the primary aim here was to create a complex in vitro biofilm model containing a range of microorganisms commonly isolated from the infected wound milieu. These polymicrobial biofilms were treated with three conventional anti-biofilm wound washes, chlorhexidine (CHX), povidone-iodine (PVP-I), and hydrogen peroxide (H2O2), and efficacy against the microorganisms assessed using live/dead qPCR. All treatments reduced the viability of the biofilms, although H2O2 was found to be the most effective treatment modality. These biofilms were then co-cultured with 3D skin epidermis to assess the inflammatory profile within the tissue. A detailed transcriptional and proteomic profile of the epidermis was gathered following biofilm stimulation. At the transcriptional level, all treatments reduced the expression of inflammatory markers back to baseline (untreated tissue controls). Olink technology revealed a unique proteomic response in the tissue following stimulation with untreated and CHX-treated biofilms. This highlights treatment choice for clinicians could be dictated by how the tissue responds to such biofilm treatment, and not merely how effective the treatment is in killing the biofilm.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QP Physiology Q Science > QR Microbiology |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | |||||||||
SWORD Depositor: | Library Publications Router | |||||||||
Library of Congress Subject Headings (LCSH): | Biofilms, Wounds and injuries, Wound healing, Epidermis | |||||||||
Journal or Publication Title: | npj Biofilms and Microbiomes | |||||||||
Publisher: | Nature Publishing Group UK | |||||||||
ISSN: | 2055-5008 | |||||||||
Official Date: | 7 April 2022 | |||||||||
Dates: |
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Volume: | 8 | |||||||||
Number: | 1 | |||||||||
Article Number: | 19 | |||||||||
DOI: | 10.1038/s41522-022-00286-z | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 3 May 2022 | |||||||||
Date of first compliant Open Access: | 4 May 2022 | |||||||||
RIOXX Funder/Project Grant: |
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