Together, the fomA and fomB genes in the fosfomycin biosynthetic gene cluster of Streptomyces wedmorensis confer high-level fosfomycin resistance on Escherichia coli. To elucidate their functions, the fomA and fomB genes were overexpressed in E. coli and the gene products were characterized. The recombinant FomA protein converted fosfomycin to fosfomycin monophosphate, which was inactive on E. ...

The antibiotic fosfomycin has been used in Japan for 21 years, and although it can be used as a single agent, it is more active when used in combination with various other antibiotics (3). Fosfomycin enters the cells of fosfomycin-susceptible bacteria by means of two different transport uptake systems: GlpT and UhpT (10). In our studies, we measured the MICs of fosfomycin for 412 randomly selec...

INTRODUCTION The growing problem of antibacterial resistance resulted in an increased interest in fosfomycin, especially its parenteral formulation. We reviewed fosfomycin safety profile using the Food and Drug Administration Adverse Event (AE) Reporting System (FAERS) and published literature. METHODS We conducted a FAERS search and disproportionality analysis of all fosfomycin-associated AE...

We tested 148 strains of clinical isolates of methicillin-resistant Staphylococcus aureus against fosfomycin alone and in combination with methicillin, cefamandole, gentamicin, trimethoprim, and vancomycin. Fosfomycin inhibited 90% of the 148 methicillin-resistant S. aureus strains at a concentration of 4 micrograms/ml. Synergism was observed in 97 strains (66%) with fosfomycin-cefamandole and ...

The present study was performed to evaluate the ability of fosfomycin, a broad-spectrum antibiotic, to penetrate into abscess fluid. Twelve patients scheduled for surgical or computer tomography-guided abscess drainage received a single intravenous dose of 8 g of fosfomycin. The fosfomycin concentrations in plasma over time and in pus upon drainage were determined. A pharmacokinetic model was d...

Treatment of hospital acquired urinary tract infections (UTIs) caused by extended-spectrum betalactamases producing Klebsiella pneumonae is a major problem. This organism expresses a high level of resistance to many groups of antibiotics. Fosfomycin is an agent which is recommended for treatment of UTIs caused by ESBLs producers. The aim of this study is to determine the sensitivity pattern of ...

In China, fosfomycin alone or in combination with other antibiotics is commonly used in the treatment of infections caused by Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). Although fosfomycin-resistant S. aureus strains have continued to emerge and increase, the research on them is rare. In order to determine the prevalence and mechanisms of fosfomycin re...

OBJECTIVES To study the in vitro and in vivo efficacy of fosfomycin, alone and in combination with ceftriaxone or vancomycin, against two strains of Streptococcus pneumoniae: HUB 2349 (fosfomycin and ceftriaxone, MICs 16 and 2 mg/L) and ATCC 51916 (MICs 4 and 32 mg/L). METHODS Pharmacokinetics/pharmacodynamics data were collected from the study of eight infected animals after a single intrave...

The treatment of multidrug-resistant (MDR), extensively drug-resistant or pandrug-resistant non-fermenting Gram-negative bacterial infections constitutes a challenge in an era of few new antibiotic choices. This mandates the re-evaluation of already existing antibiotics such as fosfomycin. We systematically reviewed the literature to assess the clinical and microbiological effectiveness of fosf...

Particular interest in fosfomycin has resurfaced because it is a highly beneficial antibiotic for the treatment of refractory infectious diseases caused by pathogens that are resistant to other commonly used antibiotics. The biological cost to cells of resistance to fosfomycin because of chromosomal mutation is high. We previously found that a bacterial two-component system, CpxAR, induces fosf...