评估商业循环介导的同热放大主混合物,以加强对食品传播病原体的检测
Ana Costa-Ribeiro1,2, Alexandre Lamas3, Alejandro Garrido-Maestu1,4
1International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal.
Foods (Basel, Switzerland)
|June 19, 2024
概括
商用循环介导同热放大 (LAMP) 主混合在性能上有很大的差异. OptiGene展示了最快的放大,pullulan也提高了速度,为试剂选择提供了宝贵的见解.
科学领域:
- 分子生物学分子生物学
- 生物技术是生物技术.
- 核酸扩大核酸扩大
背景情况:
- 循环介导同热放大 (LAMP) 是一种广泛采用的核酸放大方法.
- 有越来越多的商业,准备好使用的LAMP总组合可用.
- 这些商业LAMP总组合的独立性能评估很少.
研究的目的:
- 对五个商业LAMP总组合进行独立评估.
- 根据放大速度,DNA度灵敏度和反应添加剂的影响来比较它们的性能.
- 提供数据,以帮助科学家选择合适的LAMP试剂.
主要方法:
- 经过评估的WarmStart® LAMP套件,LavaLAMPTM DNA大师混合,Saphir Bst Turbo GreenMaster,OptiGene快速大师混合 ISO-004,以及SynLAMP混合. 这两种混合物都在使用中.
- 针对三个不同的基因:ttr (沙门氏菌spp. ),rfbE (E.E.>),rfbE (E.E.>),rfbE),rfbE (E.E.>),rfbE (E.E.>),rfbE),RfbE (E.E.>),RfbE),RfbE (E.E.>),RfbE),RfbE (E.E.>),RfbE),RfbE (E.E.>) 的意思就是说 大肠杆菌 (O157) 和hly (Listeria monocytogenes) 等.
- 评估了放大速度,对DNA的连续稀释的性能,以及贝他因,DMSO,pullulan,TMAC和GuHCl的影响.
主要成果:
- 在评估的主组合中观察到显著的性能差异.
- OptiGene Fast Master Mix表现出最快的放大,并显示出对反应添加剂的弹性.
- 普鲁兰被确定为改善测试混合物的放大速度最有效的添加剂.
结论:
- 商用LAMP主混合物显示可变的性能特征.
- 试剂的选择和添加剂的使用,如pullulan可以显著影响LAMP测定效率.
- 这项研究提供了关键的比较数据,以指导选择用于分子诊断和研究的商业LAMP主混合物.
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