Staphylococcus
Mechanisms of ResistanceSecretion of and Self-Resistance to the Novel Fibupeptide Antimicrobial Lugdunin by Distinct ABC Transporters in Staphylococcus lugdunensisLugdunin is the first reported nonribosomally synthesized antibiotic from human microbiomes. Its production by the commensal Staphylococcus lugdunensis eliminates the pathogen Staphylococcus aureus from human nasal microbiomes. The cycloheptapeptide lugdunin is the founding member of the new class...
Editor's Pick Challenging Clinical Case in Antimicrobial ResistanceGenomic Profiling of Evolving Daptomycin Resistance in a Patient with Recurrent Staphylococcus argenteus SepsisStaphylococcus argenteus is a novel staphylococcal species associated with invasive disease. We report the first case of daptomycin/vancomycin-resistant S. argenteus, initially speciated as Staphylococcus aureus, that developed...
Clinical TherapeuticsAfabicin, a First-in-Class Antistaphylococcal Antibiotic, in the Treatment of Acute Bacterial Skin and Skin Structure Infections: Clinical Noninferiority to Vancomycin/LinezolidAfabicin (formerly Debio 1450, AFN-1720) is a prodrug of afabicin desphosphono, an enoyl-acyl carrier protein reductase (FabI) inhibitor, and is a first-in-class antibiotic with a novel mode of action to specifically target fatty acid synthesis in Staphylococcus spp. The efficacy, safety, and tolerability of afabicin were compared with those of vancomycin/linezolid in the treatment of acute bacterial skin and skin structure...
Experimental TherapeuticsSynergistic Activity of Exebacase (CF-301) in Addition to Daptomycin against Staphylococcus aureus in a Neutropenic Murine Thigh Infection ModelWe evaluated the efficacy of escalating doses of exebacase administered with subtherapeutic daptomycin exposures against 8 Staphylococcus aureus isolates in a neutropenic murine thigh infection model. Daptomycin alone resulted in mean growth of 0.39 ± 1.19 log10 CFU/thigh.
Experimental TherapeuticsAntimicrobial Activity of Exebacase (Lysin CF-301) against the Most Common Causes of Infective EndocarditisExebacase, a recombinantly produced lysin (cell wall hydrolase), and comparator antibiotics were tested by the broth microdilution method against strain sets of Staphylococcus and Streptococcus spp., which are the most common causes of infective endocarditis in humans. Exebacase was active against all Staphylococcus spp. tested, including S. aureus...
Editor's Pick Mechanisms of ResistanceA Novel, Widespread qacA Allele Results in Reduced Chlorhexidine Susceptibility in Staphylococcus epidermidisChlorhexidine gluconate (CHG) is a topical antiseptic widely used in health care settings. In Staphylococcus spp., the pump QacA effluxes CHG, while the closely related QacB cannot due to a single amino acid substitution.
MinireviewRole of Rifampin against Staphylococcal Biofilm Infections In Vitro, in Animal Models, and in Orthopedic-Device-Related InfectionsRifampin has been used as an agent in combination therapy in orthopedic device-related infections (ODRI) for almost three decades. The aim of this review is to provide data regarding the role of rifampin against biofilm infection in vitro, in animal models, and in clinical ODRI.
SusceptibilityRifampin Resistance in Staphylococci after Rifaximin Intake for Surgical Prophylaxis in Elective Colorectal SurgeryThe aim of our study was to determine whether rifampin resistance emerges in human skin staphylococci after oral intake of rifaximin for surgical prophylaxis. Rifampin-resistant staphylococci appeared on the skin of 32 out of 74 patients (43.2%) two weeks after prophylactic treatment with rifaximin.