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通过双重特异核酶组合MALDI-TOF MS通过SARS-CoV-2变种的多重区分

Guobin Han^1,2, Wenchan Deng³, Qian Lyu⁴

¹Department of Chemistry, and Shanghai Stomatological Hospital, Fudan University, Shanghai, 200000, China.

Analytical and bioanalytical chemistry

|February 17, 2024

概括

这项研究提出了一种快速,高通量测试,用于同时识别多个SARS-CoV-2变体. 该方法结合了双重特异核酶 (DSN) 辅助放大和MALDI-TOF MS,以有效选病毒变体和控制流行病.

科学领域:

分子生物学分子生物学
病毒学病毒学
生物技术是生物技术.

背景情况:

频繁的SARS-CoV-2突变增加了病原性和传染性,降低了疫苗的有效性.
快速,同时识别多个SARS-CoV-2变种对于监测病毒演变至关重要.
现有的方法可能缺乏大规模监控所需的速度和多重复合能力.

研究的目的:

开发一种高通量试验,用于同时识别多个SARS-CoV-2变种.
为了利用双重特定核酶 (DSN) 辅助的循环放大和MALDI-TOF MS进行敏感和特定的检测.
为了快速查病毒变异,以控制流行病.

主要方法:

组合双重特异核酶 (DSN) 辅助的循环放大与矩阵辅助的激光脱/离子化飞行时间质谱学 (MALDI-TOF MS).
利用DSN的高特异性来解决单基基因突变.
证明了超敏感的检测,检测极限为100 pM的病毒RNA片段.

主要成果:

同时成功识别和类型化SARS-CoV-2阿尔法,贝塔和三角形变体.
在3小时内实现了高通量识别.
证明了单基基因突变分辨率和低检测极限.

结论:

开发的测定方法简单,高效,适合快速选病毒变异.
这种方法可以扩展到检测许多其他SARS-CoV-2变种.
该技术具有显著的潜力,可以通过有效的病毒监测来加强疫情控制工作.

关键词:

循环放大放大器是指循环放大器.双重体特异性的核酶.马尔迪-托夫 (MALDI-TOF) 是一个国家元首.这就是SARS-CoV-2病毒.

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