尖端ID:通过尖端测序来快速和公正地识别SARS-CoV-2变种
Keith Farrugia1, Zain Khalil1, Adriana van de Guchte1
1Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
概括
一种新的SpikeID测序试验通过准S1尖端蛋白域,快速识别SARS-CoV-2令人担忧的变体 (VOCs). 这种具有成本效益的方法提供了可靠的,近乎实时的新兴病毒系的检测.
科学领域:
- 病毒学 病毒学
- 基因组监测 基因组监测
- 传染病诊断 传染病诊断 传染病诊断
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 引起关注的变体 (VOC) 是通过S1尖端蛋白域中的突变来定义的.
- S1域对于识别变异,评估抗原进化和理解免疫逃生至关重要.
- 在S1域外的突变也可以影响VOC潜力.
研究的目的:
- 引入和评估SpikeID,一种快速,高通量测序试验,用于无偏见地检测和识别SARS-CoV-2变种.
- 为了准确性和可靠性,将SpikeID与全基因组测序进行基准测试.
主要方法:
- 开发SpikeID,一种基于测序的试验,使用尖端S1安普利康测序.
- 基准比较SpikeID与Illumina全基因组测序,使用2021年10月至2024年1月期间收集的622个临床生物标本.
- 对全球和纽约市地区传播的SARS-CoV-2血统的分析.
主要成果:
- 在检测世界卫生组织指定的所有VOC时,SpikeID实现了100%的准确性.
- 该测试与全基因组测序相比,以93%的准确度确定了流行的PANGO血统 (纽约市≥1%).
- 由于S1域以外的突变区分出的血统的精度降低.
结论:
- SpikeID测试是一种可扩展和有效的工具,用于监测SARS-CoV-2变种,特别是在像Omicron这样的激增期间.
- 这种方法提供了一种具有成本效益,可靠和近乎实时的解决方案,用于检测新出现的病毒系.
- 斯派克ID在跟踪病毒演变和告知公共卫生响应方面展示了实用性.
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