Antibiofilm Synergy of ß-Lactams and Branched Polyethylenimine against Methicillin-Resistant Staphylococcus epidermidis.
Biomacromolecules
; 20(10): 3778-3785, 2019 10 14.
Article
em En
| MEDLINE
| ID: mdl-31430130
ABSTRACT
Microbial biofilms are ubiquitous in nature, and they pose a serious threat to public health. Staphylococcus epidermidis is the most common clinical isolate from healthcare- and medical device-related biofilm infections. No antibiotic currently on the market can eradicate pathogenic biofilms, which contain complex defense mechanisms composed of slimelike extracellular polymeric substances. Understanding the need to develop alternative approaches, we examine 600 Da branched polyethylenimine (BPEI) against methicillin-resistant Staphylococcus epidermidis (MRSE) biofilms. Here, a microtiter biofilm model is used to test the synergistic effects between the two components of our combination treatment BPEI and ß-lactam antibiotics. Electron microscopy was used to confirm the growth of MRSE biofilms from the model. Minimum biofilm eradication concentration assays, crystal violet assays, and biofilm kill curves suggest that BPEI exhibits antibiofilm activity and can potentiate ß-lactams to eradicate MRSE biofilms.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polietilenoimina
/
Biofilmes
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Staphylococcus aureus Resistente à Meticilina
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Inibidores de beta-Lactamases
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Antibacterianos
Idioma:
En
Revista:
Biomacromolecules
Assunto da revista:
BIOLOGIA MOLECULAR
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos