Abstract

Active wound dressings are attracting extensive attention in soft tissue repair and regeneration, including bacteria-infected skin wound healing. As the wide use of antibiotics leads to drug resistance we present here a new concept of wound dressings based on the polycaprolactone nanofiber scaffold (NANO) releasing second generation lipophosphonoxin (LPPO) as antibacterial agent. Firstly, we demonstrated in vitro that LPPO released from NANO exerted antibacterial activity while not impairing proliferation/differentiation of fibroblasts and keratinocytes. Secondly, using a mouse model we showed that NANO loaded with LPPO significantly reduced the Staphylococcus aureus counts in infected wounds as evaluated 7 days post-surgery. Furthermore, the rate of degradation and subsequent LPPO release in infected wounds was also facilitated by lytic enzymes secreted by inoculated bacteria. Finally, LPPO displayed negligible to no systemic absorption. In conclusion, the composite antibacterial NANO-LPPO-based dressing reduces the bacterial load and promotes skin repair, with the potential to treat wounds in clinical settings.

Details

Title
Novel lipophosphonoxin-loaded polycaprolactone electrospun nanofiber dressing reduces Staphylococcus aureus induced wound infection in mice
Author
Do Pham Duy Dinh 1 ; Jenčová Věra 2 ; Kaňuchová Miriam 3 ; Bayram, Jan 4 ; Grossová Ivana 4 ; Šuca Hubert 4 ; Urban, Lukáš 5 ; Havlíčková Kristýna 2 ; Novotný Vít 6 ; Mikeš Petr 2 ; Mojr Viktor 1 ; Nikifor, Asatiani 2 ; Košťáková, Eva Kuželová 2 ; Maixnerová Martina 7 ; Vlková Alena 8 ; Vítovská Dragana 9 ; Šanderová Hana 9 ; Nemec Alexandr 10 ; Krásný Libor 9 ; Zajíček, Robert 4 ; Lukáš, David 2 ; Rejman Dominik 1 ; Gál, Peter 11 

 Czech Academy of Sciences, Institute of Organic Chemistry and Biochemistry, Prague 6, Czech Republic (GRID:grid.418095.1) (ISNI:0000 0001 1015 3316) 
 Technical University of Liberec, Faculty of Science, Humanities and Education, Liberec 1, Czech Republic (GRID:grid.6912.c) (ISNI:0000000110151740) 
 Pavol Jozef Šafárik University, Laboratory of Cell Interactions, Center of Clinical and Preclinical Research MediPark, Košice, Slovak Republic (GRID:grid.11175.33) (ISNI:0000 0004 0576 0391) 
 University Hospital Královské Vinohrady, Prague Burn Centre, Third Faculty of Medicine, Prague 10, Czech Republic (GRID:grid.412819.7) (ISNI:0000 0004 0611 1895) 
 Pavol Jozef Šafárik University, Laboratory of Cell Interactions, Center of Clinical and Preclinical Research MediPark, Košice, Slovak Republic (GRID:grid.11175.33) (ISNI:0000 0004 0576 0391); East-Slovak Institute of Cardiovascular Diseases, Department of Biomedical Research, Košice, Slovak Republic (GRID:grid.11175.33) 
 The Institute for Nanomaterials, Advanced Technologies and Innovation, Liberec 1, Czech Republic (GRID:grid.6912.c) 
 National Institute of Public Health, Laboratory of Bacterial Genetics, Centre for Epidemiology and Microbiology, Prague 10, Czech Republic (GRID:grid.425485.a) (ISNI:0000 0001 2184 1595) 
 National Institute of Public Health, Unit for Biomedicine and Welfare of Laboratory Animals, Prague 10, Czech Republic (GRID:grid.425485.a) (ISNI:0000 0001 2184 1595) 
 Czech Academy of Sciences V.V.I., Laboratory of Microbial Genetics and Gene Expression, Institute of Microbiology, Prague 4, Czech Republic (GRID:grid.418095.1) (ISNI:0000 0001 1015 3316) 
10  National Institute of Public Health, Laboratory of Bacterial Genetics, Centre for Epidemiology and Microbiology, Prague 10, Czech Republic (GRID:grid.425485.a) (ISNI:0000 0001 2184 1595); Charles University, Department of Medical Microbiology, Second Faculty of Medicine, Prague 5, Czech Republic (GRID:grid.4491.8) (ISNI:0000 0004 1937 116X) 
11  Pavol Jozef Šafárik University, Laboratory of Cell Interactions, Center of Clinical and Preclinical Research MediPark, Košice, Slovak Republic (GRID:grid.11175.33) (ISNI:0000 0004 0576 0391); University Hospital Královské Vinohrady, Prague Burn Centre, Third Faculty of Medicine, Prague 10, Czech Republic (GRID:grid.412819.7) (ISNI:0000 0004 0611 1895); East-Slovak Institute of Cardiovascular Diseases, Department of Biomedical Research, Košice, Slovak Republic (GRID:grid.412819.7) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2568814140
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.