COVID-19 Diagnosis and SARS-CoV-2 Strain Identification by a Rapid, Multiplexed, Point-of-Care Antibody Microarray.

COVID-19 Diagnosis and SARS-CoV-2 Strain Identification by a Rapid, Multiplexed, Point-of-Care Antibody Microarray.
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通过快速、多重、即时护理抗体微阵列进行 COVID-19 诊断和 SARS-CoV-2 毒株鉴定。

DOI:
10.1021/acs.analchem.2c05180
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发表时间:
2023
影响因子:
7.4
通讯作者:
Woods,Chri
Woods,Chri
中科院分区:
化学1区
文献类型:
--
作者:
Heggestad,JacobT;Britton,RhettJ;Kinnamon,DavidS;Liu,Jason;Anderson,JackG;Joh,DanielY;Quinn,Zachary;Fontes,CassioM;Hucknall,AngusM;Parks,Robert;Sempowski,GregoryD;Denny,ThomasN;Burke,ThomasW;Haynes,BartonF;Woods,Chri

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检测SARS-CoV-2的抗原测试已成为COVID-19的一种有前途的快速诊断方法,但它们无法区分关注的变体(VOC)。在这里,我们报告了一种称为CoVariant-SPOT的快速床旁检测(POC-T),该检测使用一组对刺突蛋白突变具有耐受性或不耐受性的抗体,以识别可能的SARS-CoV-2毒株,同时使用靶向核衣壳蛋白的抗体进行COVID-19诊断。所有试剂都被纳入一个便携式,多路复用,灵敏的诊断平台上建立一个无污染的聚合物刷。为了验证CoVariant-SPOT,我们测试了重组SARS-CoV-2蛋白、灭活病毒和来自COVID-19阳性和阴性个体的鼻咽拭子样本,结果表明CoVariant-SPOT可以很容易地区分两种VOC:Delta和Omicron。我们相信,CoVariant-SPOT可以作为下一代测序的一个有价值的辅助工具,使用可扩展和可部署的POC-T快速识别变异,从而加强全球社区的监测工作,并为治疗选择提供信息。
Antigen tests to detect SARS-CoV-2 have emerged as a promising rapid diagnostic method for COVID-19, but they are unable to differentiate between variants of concern (VOCs). Here, we report a rapid point-of-care test (POC-T), termed CoVariant-SPOT, that uses a set of antibodies that are either tolerant or intolerant to spike protein mutations to identify the likely SARS-CoV-2 strain concurrent with COVID-19 diagnosis using antibodies targeting the nucleocapsid protein. All reagents are incorporated into a portable, multiplexed, and sensitive diagnostic platform built upon a nonfouling polymer brush. To validate CoVariant-SPOT, we tested recombinant SARS-CoV-2 proteins, inactivated viruses, and nasopharyngeal swab samples from COVID-19 positive and negative individuals and showed that CoVariant-SPOT can readily distinguish between two VOCs: Delta and Omicron. We believe that CoVariant-SPOT can serve as a valuable adjunct to next-generation sequencing to rapidly identify variants using a scalable and deployable POC-T, thereby enhancing community surveillance efforts worldwide and informing treatment selection.
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