Details

Autor(en) / Beteiligte

• Ito, Akinobu
• Kohira, Naoki
• Bouchillon, Samuel K
• West, Joshua
• Rittenhouse, Stephen
• Sader, Helio S
• Rhomberg, Paul R
• Jones, Ronald N
• Yoshizawa, Hidenori
• Nakamura, Rio
• Tsuji, Masakatsu
• Yamano, Yoshinori

Titel

In vitro antimicrobial activity of S-649266, a catechol-substituted siderophore cephalosporin, when tested against non-fermenting Gram-negative bacteria

Ist Teil von

• Journal of antimicrobial chemotherapy, 2016-03, Vol.71 (3), p.670-677

Ort / Verlag

England: Oxford Publishing Limited (England)

Erscheinungsjahr

2016

Quelle

Oxford Journals 2020 Medicine

Beschreibungen/Notizen

• S-649266 is a parenteral siderophore cephalosporin antibiotic with a catechol moiety on its side chain. The in vitro antimicrobial activity of S-649266 against non-fermenting Gram-negative bacteria was evaluated and compared with the activities of meropenem, levofloxacin, cefepime, ceftazidime and piperacillin/tazobactam. MIC values of S-649266 were determined in Mueller-Hinton broth or Iso-Sensitest broth supplemented with apo-transferrin. S-649266 showed potent in vitro activity against the non-fermenting Gram-negative bacteria Acinetobacter baumannii, Pseudomonas aeruginosa and Stenotrophomonas maltophilia, including MDR strains such as carbapenem-resistant A. baumannii and metallo-β-lactamase-producing P. aeruginosa. MIC90s of S-649266 for A. baumannii, P. aeruginosa and S. maltophilia were 2, 1 and 0.5 mg/L, respectively, whereas MIC90s of meropenem were >16 mg/L. S-649266 showed potent in vitro activities against A. baumannii producing carbapenemases such as OXA-type β-lactamases, and P. aeruginosa producing metallo-β-lactamases such as IMP type and VIM type. MIC90 values for these A. baumannii strains and P. aeruginosa strains were 8 and 4 mg/L, respectively. S-649266 is a novel antibiotic with potent in vitro activity against a range of non-fermenting Gram-negative bacteria, including MDR strains.