从全基因组数据库推断抗菌素耐药性 (AMR),其性能优于AMR基因检测
Pornsawan Cholsaktrakool1, Kornthara Kawang2,3, Nicha Sangpiromapichai4
1Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok, Thailand.
iScience
|July 21, 2025
概括
在Klebsiella pneumoniae中快速检测抗微生物耐药性 (AMR) 是可能的,使用一种新的管道. 这种方法在不到一个小时内准确地预测尿样中的敏感性,优于传统的基因检测.
科学领域:
- 临床微生物学 临床微生物学
- 基因组分析 基因组分析
- 抗微生物耐药性 抗微生物耐药性
背景情况:
- 抗菌素耐药性 (AMR) 构成了全球健康的重大威胁.
- 快速检测AMR对于有效的患者治疗和感染控制至关重要.
- 目前用于AMR检测的方法可能耗时,延迟适当的治疗.
研究的目的:
- 开发和评估一种快速检测Klebsiella pneumoniae中的抗菌素耐药性的方法.
- 评估用于AMR预测的新型"对齐-搜索-推断"管道的准确性和速度.
- 确定使用病原体特定基因组数据库用于临床敏感性预测的可行性.
主要方法:
- 使用了"对齐-搜索-推断"管道,将24个尿样中的查询序列与精选的Klebsiella基因组数据库对齐.
- 通过全基因组和等离子体匹配推断了抗微生物敏感性,分析时间分别为10分钟和1小时.
- 性能与传统的AMR基因检测方法进行了比较.
主要成果:
- 碳烯耐药性推断在10分钟内达到77.3%的准确性 (全基因组匹配) 和在1小时内达到85.7%的准确性 (等离子体匹配).
- 这两种管道方法都显著超过了AMR基因检测在6小时内54.2%的准确性.
- 该方法证明适用于低负载临床样本,需要最小的细菌DNA,性能与大型公共数据库相比.
结论:
- "对齐-搜索-推断"管道能够快速准确地预测Klebsiella pneumoniae中的抗菌素敏感性.
- 将病原体特异性基因组数据库集成到临床工作流程中可以增强对抗微生物敏感性的预测.
- 用更大的数据集进行进一步验证是有必要的,以在各种病原体和样本类型中扩大应用范围.
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