Townsend, E. M., Sherry, L. , Rajendran, R., Hansom, D., Butcher, J., Mackay, W. G., Williams, C. and Ramage, G. (2016) Development and characterisation of a novel three-dimensional inter-kingdom wound biofilm model. Biofouling, 32(10), pp. 1259-1270. (doi: 10.1080/08927014.2016.1252337) (PMID:27841027)
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Abstract
Chronic diabetic foot ulcers are frequently colonised and infected by polymicrobial biofilms that ultimately prevent healing. This study aimed to create a novel in vitro inter-kingdom wound biofilm model on complex hydrogel-based cellulose substrata to test commonly used topical wound treatments. Inter-kingdom triadic biofilms composed of Candida albicans, Pseudomonas aeruginosa, and Staphylococcus aureus were shown to be quantitatively greater in this model compared to a simple substratum when assessed by conventional culture, metabolic dye and live dead qPCR. These biofilms were both structurally complex and compositionally dynamic in response to topical therapy, so when treated with either chlorhexidine or povidone iodine, principal component analysis revealed that the 3-D cellulose model was minimally impacted compared to the simple substratum model. This study highlights the importance of biofilm substratum and inclusion of relevant polymicrobial and inter-kingdom components, as these impact penetration and efficacy of topical antiseptics.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Ramage, Professor Gordon and Rajendran, Dr Ranjith and Sherry, Dr Leighann and Townsend, Miss Eleanor |
Authors: | Townsend, E. M., Sherry, L., Rajendran, R., Hansom, D., Butcher, J., Mackay, W. G., Williams, C., and Ramage, G. |
College/School: | College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing > Dental School |
Journal Name: | Biofouling |
Publisher: | Taylor & Francis |
ISSN: | 0892-7014 |
ISSN (Online): | 1029-2454 |
Published Online: | 14 November 2016 |
Copyright Holders: | Copyright © 2016 Taylor and Francis |
First Published: | First published in Biofouling 32(10): 1259-1270 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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