Stability of Novel Siderophore Cephalosporin S-649266 against Clinically Relevant Carbapenemases

被引：151

作者：

Ito-Horiyama, Tsukasa ^{[1
]}

Ishii, Yoshikazu ^{[2
]}

Ito, Akinobu ^{[1
]}

Sato, Takafumi ^{[1
]}

Nakamura, Rio ^{[1
]}

Fukuhara, Norio ^{[3
]}

Tsuji, Masakatsu ^{[1
]}

Yamano, Yoshinori ^{[1
]}

Yamaguchi, Keizo ^{[2
]}

Tateda, Kazuhiro ^{[2
]}

机构：

[1] Shionogi & Co Ltd, Discovery Res Lab Core Therapeut Areas, Osaka, Japan

[2] Toho Univ, Sch Med, Tokyo, Japan

[3] Shionogi & Co Ltd, Global Innovat Off, Osaka, Japan

来源：

ANTIMICROBIAL AGENTS AND CHEMOTHERAPY | 2016年 / 60卷 / 07期

关键词：

D O I：

10.1128/AAC.03098-15

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

To better understand the antibacterial activity of S-649266 against carbapenemase producers, its stability against clinically relevant carbapenemases was investigated. The catalytic efficiencies (k(cat)/K-m) of IMP-1, VIM-2, and L1 for S-649266 were 0.0048, 0.0050, and 0.024 mu M-1 s(-1), respectively, which were more than 260-fold lower than that for meropenem. Only slight hydrolysis of S-649266 against KPC-3 was observed. NDM-1 hydrolyzed meropenem 3-fold faster than S-649266 at 200 mu M.

引用

页码：4384 / 4386

页数：3

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