实验动物科学 ›› 2020, Vol. 37 ›› Issue (04): 21-.

• 研究报告 • 上一篇    下一篇

仙台病毒荧光定量 PCR 检测方法的建立及初步应用

  

  1. ( 1. 北京理工大学,北京 100081) ( 2. 中国食品药品检定研究院,北京 102629)
  • 出版日期:2020-08-28 发布日期:2020-10-27

Establishment of a Fluorescent Quantitative PCR Detection Method for Sendai Virus and its Preliminary Application

  • Online:2020-08-28 Published:2020-10-27

摘要: 目的 建立敏感特异的仙台病毒( SeV)荧光定量 PCR 检测方法,并初步应用。 方法 将不同株 SeV 病毒序 列进行比对,选择对保守区域设计合成引物。 人工合成 SeV 基因组 12 181 ~ 12 480 DNA 序列,转入质粒中,作为仙 台病毒质粒标准品,建立 SYBR 染料法荧光定量 PCR 方法,并对样本进行 SeV 测定。 结果 建立了特异性的检测 SeV 的 SYBR 荧光定量 PCR 方法,该方法对 SeV 最低检测限度为 10 copies / μL。 将所建立的实时荧光定量 PCR 方 法用于 40 只 SPF 小鼠和 58 只裸鼹鼠的肺组织样本的检测,检测结果为仙台病毒核酸阴性;检测 4 只成年屏障环 境饲养黄鼠肺组织和 5 只清洁级小鼠肺组织,检测结果为仙台病毒核酸阳性率 100% 。 结论 该研究建立的 SYBR Green 染料法荧光定量 PCR 方法能特异敏感地检测仙台病毒。

关键词: 仙台病毒, 荧光定量 PCR, 初步应用

Abstract: Objective To establish a fluorescent quantitative PCR ( Q-PCR) method for the Sendai virus ( SeV) . Method A fluorescent quantitative PCR ( Q-PCR) method for SeV was developed based on a pair of primers that in accordance with the published sequence of SeV L gene. The specificity, sensitivity, repeatability and stability of the method were verified. The method was used to detect 40 SPF mice,58 naked mole rats, 4 Spermophilus dauricus and 5 clean mice. Result The assay could specifically detect SeV and had good sensitivity, the minimum detectable amount of Sendai virus was 10 copies / μL. The 40 SPF mice and 58 naked mole rats were negative by this Q-PCR assay,4 Spermophilus dauricus and 5 clean mice were all positive. Conclusion The developed Q-PCR method is good in linearity, specificity, sensitivity, and can be used for the rapid quantitative detection of SeV samples. It provides technical reference for the monitoring of SeV and improvement of related standards.

Key words: Sendai virus, Q-PCR, preliminary application