2011年至2019年在日本隔离的89个菌株的Streptococcus pyogenes emm的遗传特征
Yujiro Hirose1,2, Masaya Yamaguchi1, Norihiko Takemoto3
1Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan.
Infectious microbes & diseases
|April 17, 2024
概括
日本的侵袭性Streptococcus pyogenes emm89菌株主要是第3类,无论疾病的严重程度如何. 遗传因素,如毒性传感器突变和 hialuronidase 基因缺失,与侵入性疾病的潜力有关.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 传染性疾病 传染性疾病
背景情况:
- 由Streptococcus pyogenes emm89菌株引起的侵入性感染在全球范围内正在增加.
- 一个特定的新兴关节,关节3,与这些感染有关.
- 日本的emm89菌株的遗传特征和分类类别以前是未知的.
研究的目的:
- 在日本流传的emm89Streptococcus pyogenes菌株的分类是基于分类.
- 为了确定与 emm89 菌株的侵入性疾病潜力相关的遗传因素.
- 了解 emm89 菌株与疾病严重程度相关的遗传特征.
主要方法:
- 全基因组测序emm89菌株Streptococcus pyogenes的菌株. 这是一个很好的方法.
- 对比的基因组分析.
- 在2011年至2019年期间,在日本分离了链球菌毒性休克综合征 (STSS) 和非STSS感染的菌株.
主要成果:
- 大多数分析的emm89菌株属于第3类,无论它们是否引起侵入性 (STSS) 或非侵入性感染.
- 确定了与侵入性疾病相关的特定遗传因素,包括病毒传感器控制中的突变.
- 发现编码为 hialuronidase 的 hylP1 基因的缺失也与侵袭性菌株有关.
结论:
- 日本的Streptococcus pyogenes emm89菌株主要是第3类,与国际趋势相似.
- 在emm89菌株中,特定的遗传突变和基因缺失与它们可能引起侵入性疾病有关.
- 这些发现有助于理解emm89菌株的进化和病原性.
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