在Streptococcus agalactiae中鉴定抗生素诱导的持久细胞
Nanna Boll Greve1, Hans-Christian Slotved2, John Elmerdahl Olsen1
1Faculty of Health and Medical Sciences, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C, Denmark.
PloS one
|June 26, 2024
概括
在Streptococcus agalactiae中的抗生素持久细胞可以在抗生素治疗中存活下来,这可能解释了复发性感染. 这种特征在临床隔离物中很常见,受生长阶段和抗生素类型的影响.
科学领域:
- 微生物学 微生物学
- 传染性疾病 传染性疾病
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 抗生素持久性涉及一个小的细菌分数存活致命的抗生素剂量.
- 持久性细胞与复发性感染有关,这构成了临床挑战.
- 杆菌 (Streptococcus agalactiae) 导致侵入性感染,据报道,新生儿和成年人中会出现复发.
研究的目的:
- 为了研究Streptococcus agalactiae中持久细胞的形成.
- 确定影响S. agalactiae.持续细胞频率的因素.
- 评估临床隔离物中持续细胞形成的流行率.
主要方法:
- 对S. agalactiae NEM316暴露于各种类型的抗生素.
- 在不同细菌生长阶段对持久细胞形成的分析.
- 在各种临床S. agalactiae分离物中测试青素诱导的持久细胞形成.
主要成果:
- 在接触不同类型的抗生素时,S. agalactiae会形成持久细胞.
- 持久性细胞形成频率取决于细菌生长阶段和抗生素类别.
- 青素诱导的持久细胞形成是临床S. agalactiae分离物中保存的特征.
结论:
- 存在耐抗生素的S. agalactiae持续性细胞.
- 持久性细胞的存在可能解释治疗持久性和复发性感染.
- 这一发现对管理S. agalactiae感染有影响.
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