首次了解俄罗斯抗克拉里素耐药Helicobacter pylori临床分离物的全基因组序列变异
Daria Starkova1, Nikita Gladyshev2, Dmitrii Polev3
1Laboratory of Identification of the Pathogens/Laboratory of Molecular Epidemiology and Evolutionary Genetics, St. Petersburg Pasteur Institute, St. Petersburg, Mira Street, 197101, Russia. dariastarkova13@gmail.com.
Scientific reports
|August 29, 2024
概括
这项研究确定了来自俄罗斯的Helicobacter pylori中克拉里素耐药性的关键遗传标志物. 全基因组测序揭示了预测抗生素敏感性的特定突变,有助于治疗策略.
科学领域:
- 微生物学 微生物学
- 遗传学 遗传学 是一个
- 传染性疾病 传染性疾病
背景情况:
- 清素 (CLR) 对于治疗Helicobacter pylori感染至关重要.
- 俄罗斯H. pylori分离物中CLR耐药性模式的数据缺乏.
- 了解耐药机制对于有效治疗至关重要.
研究的目的:
- 调查来自俄罗斯的H. pylori临床分离物的序列变异.
- 识别与CLR耐药性相关的遗传标记物.
- 为了将基因型发现与表型敏感性测试相关联.
主要方法:
- 44个H. pylori分离物 (2014-2022) 的全基因组测序 (WGS).
- 使用光盘扩散方法进行表型敏感性测试.
- 对23SrRNA和病毒性相关基因的序列变异的分析.
主要成果:
- 在44个分离物中,有23个显示CLR耐药性.
- 在23S rRNA基因中的A2146G/A2147G突变可靠地预测CLR易感性.
- 在HP0820中,一个移删除 (252:CGGGT) 被确定为潜在的新型抗性标记物.
结论:
- 这项研究提供了首个基于WGS的洞察力,了解H. pylori在俄罗斯的遗传多样性和CLR耐药性.
- 特定的23S rRNA突变是清素耐药性的强有力的预测因素.
- 新型突变,如HP0820删除,需要进一步调查耐药性发展.
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