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 β-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 β-lactams to eradicate MRSE biofilms.
journal_name
Biomacromoleculesjournal_title
Biomacromoleculesauthors
Lam AK,Wouters CL,Moen EL,Pusavat J,Rice CVdoi
10.1021/acs.biomac.9b00849subject
Has Abstractpub_date
2019-10-14 00:00:00pages
3778-3785issue
10eissn
1525-7797issn
1526-4602journal_volume
20pub_type
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