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整合DNA和RNA测序,以改善呼吸道感染病原体检测

Dejian Gu¹, Jie Liu², Jiaping Wang³

¹Geneplus-Beijing Co., Ltd., Beijing, China.

Journal of translational medicine

|March 15, 2025

概括

针对性下一代测序 (tNGS) 为诊断呼吸道感染,检测病原体和识别抗菌素耐药性标志物提供了一种敏感和特定的方法. 这种方法显示出广泛临床应用的前景.

科学领域:

分子生物学分子生物学
传染性疾病传染性疾病
基因组学就是基因组学.

背景情况:

枪支元基因组下一代测序 (mNGS) 对病原体检测有价值,但复杂且昂贵.
针对性下一代测序 (tNGS) 为诊断呼吸道感染提供了一个潜在的更容易获得的替代方案.

研究的目的:

设计和评估针对性下一代测序 (tNGS) 试验的性能,用于诊断呼吸道感染.
评估tNGS在病原体检测和表征方面的敏感性,特异性和临床实用性.

主要方法:

对281名患有下呼吸道感染的患者样本的回顾性分析.
开发用于向病原体选择的探针杂交系统.
用临床和模拟样本对306种病原体进行tNGS性能评估.

主要成果:

tNGS表现出高的特异性和稳定性,其检测极限为100-200 CFU/mL.
tNGS的灵敏度 (97.73%) 和特异性 (75.41%) 超过了传统的微生物学方法 (CMT).
tNGS能够同时识别抗菌素耐药性 (AMR) 标记物和病毒亚型,与PCR和抗菌素敏感性测试具有很高的一致性.

结论:

开发的tNGS试验表现出强大的性能,可同时检测DNA和RNA病原体.
tNGS是临床诊断的一个有前途的工具,提供更好的灵敏度和全面的病原体特征.
这种定制的tNGS方法支持在临床环境中广泛采用呼吸道感染诊断.

关键词:

捕获探测器的丰富度增加的DNA和RNA测序.呼吸道感染呼吸道感染目标NGS测试目标NGS测试 mNGSS 在线观看 tNGS是什么意思 tNGS是什么意思

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