基于多探针策略的高度敏感的TaqMan方法的开发:其在ASFV检测中的应用
Shuxiang Ding1,2, Tianren Shen2, Zixuan Feng2
1MOA Key Laboratory of Animal Virology, Zhejiang University Center for Veterinary Sciences, Hangzhou 310058, China.
Biology methods & protocols
|March 15, 2024
概括
一种新的TaqMan实时PCR方法提供了高度敏感的非洲猪瘟病毒 (ASFV) 检测. 这种分析准确地识别了猪体中微量病毒核酸,这对于疾病控制至关重要.
科学领域:
- 兽医病毒学 兽医病毒学
- 分子诊断学 分子诊断
- 微生物学 微生物学
背景情况:
- 对病原性微生物的敏感检测对于疾病控制至关重要.
- 非洲猪瘟病毒 (ASFV) 对全球猪群构成重大威胁.
- 现有的诊断方法需要提高灵敏度和特异性.
研究的目的:
- 开发一种高度敏感的TaqMan实时定量PCR (qPCR) 方法来检测ASFV.
- 研究一种多探头策略,以提高检测灵敏度.
- 用临床样本验证试验的性能,并将其与已知的方法进行比较.
主要方法:
- 四个针对ASFV*B646L*基因的探针的设计和优化.
- 开发一个单一的TaqMan qPCR测定方法,采用多探针策略.
- 超过用于从水样中缩病毒核酸.
- 与常见的猪病毒进行交叉反应性测试,并与173个临床样本进行验证.
主要成果:
- 已建立的TaqMan qPCR测定检测到ASFV基因的0.5-5副本/μl.
- 超过使得可以灵敏地检测微量病毒核酸.
- 没有观察到与其他常见的猪病毒的交叉反应.
- 在临床样本检测中,与WOAH推的方法的100%一致率.
结论:
- 一个高度敏感和特定的TaqMan qPCR测定成功建立了ASFV检测.
- 多探针策略显著提高了对微生物的检测灵敏度.
- 这种综合战略为敏感的ASFV诊断和潜在的其他病原体提供了有价值的工具.
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