In vitro time-kill kinetics of dalbavancin against Staphylococcus spp. biofilms over prolonged exposure times.

Abstract:

:Staphylococcus aureus and Staphylococcus epidermidis are leading pathogens of biofilm-related infections and represent the most common cause of osteomyelitis and biomedical implants infections. Biofilm-related infections usually require long-term antibiotic treatment, often associated to surgical interventions. Dalbavancin is a newer lipoglycopeptide approved for the treatment of acute skin and skin-structure infections caused by Gram-positive pathogens. In addition, dalbavancin has recently been considered as a potential option for the treatment of staphylococcal osteomyelitis and orthopedic implant infections. In this study, time-kill kinetics of dalbavancin against S. aureus and S. epidermidis biofilms were determined over prolonged exposure times (up to 7 days), using both a standardized biofilm susceptibility model and biofilms grown onto relevant orthopedic biomaterials (i.e. titanium and cobalt-chrome disks). Dalbavancin (at concentrations achievable in bone and articular tissue) showed a potent activity against established staphylococcal biofilms in both tested models, and was overall superior to the comparator vancomycin.

authors

Di Pilato V,Ceccherini F,Sennati S,D'Agostino F,Arena F,D'Atanasio N,Di Giorgio FP,Tongiani S,Pallecchi L,Rossolini GM

doi

10.1016/j.diagmicrobio.2019.114901

subject

Has Abstract

pub_date

2020-02-01 00:00:00

pages

114901

issue

2

eissn

0732-8893

issn

1879-0070

pii

S0732-8893(19)30481-X

journal_volume

96

pub_type

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