全球传播的Streptococcus pyogenes 一个基因组学支持的叙事审查
Gabriele Arcari1,2, Lorenzo Colombini3, Matteo Castelli4
1Department of Medicine and Technological Innovation, University of Insubria, 21100, Varese, Italy.
FEMS microbiology reviews
|November 11, 2025
概括
在全球范围内,A组链球菌 (GAS) 正在重新出现,其特定的毒性血统驱动侵入性感染. 基因组流行病学确定了四种全球致病性血统 (GPL),它们对全球疾病增加负责.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 流行病学 流行病学
背景情况:
- 亚型链球菌 (GAS) 已在全球复苏,导致儿童和成人中轻微和严重的侵入性感染增加.
- 这种重新出现恰逢COVID-19大流行,并与更具毒性的GAS菌株的快速传播有关.
- 已经确定了GAS菌株的分子变化,与改变的临床表现相关.
研究的目的:
- 调查全球近期侵袭性A组链球菌 (iGAS) 感染急剧增加的基因组基础.
- 为了识别和描述特定的GAS血统,推动全球入侵性疾病的增加.
- 整合全基因组测序 (WGS) 数据与临床和流行病学信息,以加强监测.
主要方法:
- 利用基于全基因组测序 (WGS) 的基因组流行病学来分析GAS分离物.
- 综合基因组数据与研究出版物和临床监测中的元数据.
- 根据基因组聚类和与侵入性疾病的关联,确定并定义了全球致病系 (GPL).
主要成果:
- 确定了四种全球致病性血统 (GPLs),它们是全球iGAS感染的主要驱动因素.
- 这些GPL与特定的序列类型 (ST) 相对应:GPL1 (ST28),GPL2 (ST15,ST315),GPL3 (ST52) 和GPL4 (ST39).
- 与非GPL集群不同,GPL集群表现出明显的抗微生物耐药性概况,并且经常与侵入性感染有关.
结论:
- 基因组流行病学,特别是WGS,对于理解和追踪毒性GAS的出现和传播至关重要.
- 已识别的GPL代表了监测,诊断和公共卫生干预的关键目标.
- 将WGS整合到常规诊断中将增强感染控制,指导治疗,并提供关于GAS演变和传播的持续洞察力.
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