针对传染病监测的高度多重化的向测序策略
Iván Hernández-Neuta1,2, Anastasia Magoulopoulou1,2, Flor Pineiro1,2
1Department of Biochemistry and Biophysics, Faculty of Science, Stockholm University, Svante Arrhenius väg 16C, Stockholm, 104 05, Sweden.
BMC biotechnology
|August 23, 2023
概括
这项研究引入了一种具有成本效益的分子逆转探头 (MIP) 试验,用于在血液样本中快速检测微生物病原体和抗菌素耐药性标记物 (AMR),从而改善资源有限的环境中的传染病监测.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 传染病诊断 传染病诊断 传染病诊断
背景情况:
- 由于缺乏负担得起和全面的检测平台,对贫困疾病的表征具有挑战性.
- 下一代测序 (NGS) 提供了高吞吐量,但受到低微生物DNA度和复杂的准备/分析的限制.
- 现有的方法阻碍了有效的疾病控制和全球卫生倡议的资源分配.
研究的目的:
- 调整分子逆转探头 (MIPs) 以实现微生物感染特征的成本效益高的目标丰富.
- 开发一种有针对性的测序方法,用于在临床样本中识别病原体和抗菌素耐药性标记物 (AMR).
- 简化中低资源环境中的传染病监测.
主要方法:
- 设计了一个分子逆转探头 (MIP) 面板,针对细菌属,物种,真菌和抗菌耐药性标记 (AMR).
- 利用短读测序,从血液样本中向DNA丰富.
- 针对微生物标的高特异性和吞吐量检测而改进的MIP.
主要成果:
- MIP方法表现出高特异性,检测病原体DNA的度低至宿主DNA中的1000个目标中的1个.
- 在之前通过血液培养分析的24个败血症患者样本中,成功识别了20个病原体和AMR.
- 该测试提供了微生物感染和耐药性标志物的准确分析.
结论:
- 向MIP测定提供了微生物病原体和AMR的高通量识别,具有很好的特异性.
- 简化的工作流,需要最小的样本准备和生物信息学,使其适合资源有限的设置.
- 这种方法提高了全球传染病的表征和监测.
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