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基于CRISPR/Cas12系统的测试用于快速,灵敏地检测食品样本中的罗塔病毒

Shirui Gou¹, Yan Liu², Qianqian Li¹

¹College of Life Sciences, Shanghai Normal University, Shanghai, China.

Foodborne pathogens and disease

|October 14, 2024

概括

这项研究提出了一种新的,简单的方法来检测食品中的轮状病毒. 结合CRISPR Cas12和RT-LAMP,可以提供快速,灵敏的现场检测,这对于食品安全和预防疾病至关重要.

科学领域:

食品安全和公共卫生问题
分子诊断学分子诊断学
病毒学病毒学

背景情况:

食物传播病毒,特别是A组轮状病毒,对人类健康和食品安全构成重大风险.
目前的轮状病毒检测方法,如定量实时逆转录聚合酶链反应 (RT-qPCR),需要昂贵的设备和训练有素的工作人员,限制了现场应用.
快速而准确的现场检测对于控制轮状病毒爆发和管理患者护理至关重要.

研究的目的:

开发一种简单,准确,可在现场部署的轮状病毒检测方法.
减少对昂贵的仪器和复杂的病毒识别程序的依赖.
通过快速识别轮状病毒污染来提高食品安全.

主要方法:

开发一个结合CRISPR Cas12和反转录循环介导的同热放大系统 (RT-LAMP).
研究两个系统:使用CRISPR Cas12a的RT-LAMP和使用CRISPR Cas12b的RT-LAMP.
开发的方法与传统的RT-qPCR进行准确性和灵敏性的比较.

主要成果:

这种新型检测系统在单个管中在60分钟内在单个温度下运行.
实现了38拷贝/μL的检测灵敏度,证明了高精度.
在食品样本中快速检测轮状病毒时,CRISPR-Cas12/RT-LAMP方法被证明是有效的.

结论:

成功开发了一种创新且简化的方法,用于在食品样本中快速检测轮状病毒.
这种技术降低了现场检测的障碍,改善了食品安全监督.
该方法有助于预防人类感染,并减轻与轮状病毒爆发相关的经济损失.

关键词:

在CRISPR案例12a中,在CRISPR Cas12b案例中.土耳其人 RT-LAMP 食品安全食品安全轮状病毒病毒的病毒.

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