ArticleFrontiers in microbiology2021
Rapid and Specific Detection of Active SARS-CoV-2 With CRISPR/Cas12a.
Article in Frontiers in microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 11 citations in OpenAlex.
- A rapid point-of-care population-scale dipstick assay to identify and differentiate SARS-CoV-2 variants in COVID-19-positive patients.Frontiers in microbiology · 2024Article
- Mesophilic Argonaute-based isothermal detection of SARS-CoV-2.Frontiers in microbiology · 2022Article
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Authors and funding
11 authors at 7 institutions in 1 country.
Funding
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Abstract
Rapid and sensitive nucleic acid detection of SARS-CoV-2 has contributed to the clinical diagnosis and control of COVID-19. Although detection of virus genomic RNA (gRNA) has been commonly used in clinical diagnosis, SARS-CoV-2 gRNA detection could not discriminate between active infectious virus with remnant viral RNA. In contrast to genomic RNA, subgenomic RNAs (sgRNAs) are only produced when the virus is actively replicating and transcription, detection of sgRNA could be an indication to evaluate infectivity. CRISPR/Cas-based nucleic acid detection methods have been considered potential diagnostic tools due to their intrinsic sensitivity, specificity and simplicity. In this study, to specifically detect active virus replication, we developed a CRISPR-based active SARS-CoV-2 (CRISPR-actCoV) detection strategy by detecting sgRNAs of SARS-CoV-2. CRISPR-actCoV with CRISPR Cas12a-assisted fluorescence reporter system enables detection of sgRNAs at 10 copies in 35 min with high specificity and can be read out with naked eyes. Further, we performed CRISPR-actCoV mediated sgRNA detection in 30 SARS-CoV-2 potentially infected clinical samples, and 21 samples were SARS-CoV-2 sgRNA positive. A quantitative RT-PCR assay was also performed to detect gRNA of SARS-CoV-2 in parallel. Among the 30 clinical samples, 27 samples were gRNA positive. Taken together, CRISPR-actCoV provides an alternative for rapid and accurate detection of active SARS-CoV-2 and has great significance in better response of coronavirus causing epidemic disease.
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