Emergence of high-level penicillin-resistant Neisseria meningitidis harboring ROB-1-type β-lactamase gene in Japan.

IF 1.9 4区 医学 Q3 INFECTIOUS DISEASES Journal of Infection and Chemotherapy Pub Date : 2025-03-11 DOI:10.1016/j.jiac.2025.102679
Hideyuki Takahashi, Yuki Ohama, Kazuhiro Horiba, Munehisa Fukusumi, Tomimasa Sunagawa, Tsukasa Ariyoshi, Mayako Koide, Ken Shimuta, Ryoichi Saito, Yukihiro Akeda
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引用次数: 0

Abstract

While antimicrobial resistance in Neisseria meningitidis, the causative agent for invasive meningococcal disease (IMD), is rare, some meningococcal isolates in Japan were resistant to ciprofloxacin and penicillin (PCG). Among 290 meningococci isolated from 2003 to 2020 in Japan, four PCG resisitant (PCGR) meningococci were found but showed the minimum inhibitory concentration (MIC) with 0.5 μg/mL at a maximum due to mutation in penA gene that encodes penicillin-binding protein 2 (PBP2). However, we herein report that PCGR meningococci harboring the ROB-1-type β-lactamase gene (blaROB-1) with PCG MIC of 32 μg/mL were isolated in Japan from 2 independent IMD patients at Tokyo in June, and at Shiga in December in 2024. The both isolates were also resistant to another β-lactams, ampicillin and amoxicillin. The PCGR meningococci with blaROB-1, which was genetically classified in sequence type (ST)-3587, was firstly identified in France in 2018 and isolated only in European and American countries until 2024. Phylogenetic analysis with whole genome sequencing revealed that the two Japanese N. meningitidis isolates were not genetically identical and that they were not identical to other ST-3057 meningococci isolated in western countries. The emergence of the blaROB-1 positive meningococci in Japan would warn medical risk that β-lactams such as PCG and amoxicillin are not always applicable to IMD treatment and prevention in Japan.

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来源期刊
Journal of Infection and Chemotherapy
Journal of Infection and Chemotherapy INFECTIOUS DISEASES-PHARMACOLOGY & PHARMACY
CiteScore
4.10
自引率
4.50%
发文量
303
审稿时长
47 days
期刊介绍: The Journal of Infection and Chemotherapy (JIC) — official journal of the Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases — welcomes original papers, laboratory or clinical, as well as case reports, notes, committee reports, surveillance and guidelines from all parts of the world on all aspects of chemotherapy, covering the pathogenesis, diagnosis, treatment, and control of infection, including treatment with anticancer drugs. Experimental studies on animal models and pharmacokinetics, and reports on epidemiology and clinical trials are particularly welcome.
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