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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Angew+Chem+Int+Ed+Engl 2021 ; 60 (10): 5307-5315 Nephropedia Template TP
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Simultaneous Dual-Gene Diagnosis of SARS-CoV-2 Based on CRISPR/Cas9-Mediated Lateral Flow Assay #MMPMID33295064
Xiong E; Jiang L; Tian T; Hu M; Yue H; Huang M; Lin W; Jiang Y; Zhu D; Zhou X
Angew Chem Int Ed Engl 2021[Mar]; 60 (10): 5307-5315 PMID33295064show ga
Few methods for the detection of SARS-CoV-2 currently have the capability to simultaneously detect two genes in a single test, which is a key measure to improve detection accuracy, as adopted by the gold standard RT-qPCR method. Developed here is a CRISPR/Cas9-mediated triple-line lateral flow assay (TL-LFA) combined with multiplex reverse transcription-recombinase polymerase amplification (RT-RPA) for rapid and simultaneous dual-gene detection of SARS-CoV-2 in a single strip test. This assay is characterized by the detection of envelope (E) and open reading frame 1ab (Orf1ab) genes from cell-cultured SARS-CoV-2 and SARS-CoV-2 viral RNA standards, showing a sensitivity of 100 RNA copies per reaction (25 muL). Furthermore, dual-gene analysis of 64 nasopharyngeal swab samples showed 100 % negative predictive agreement and 97.14 % positive predictive agreement. This platform will provide a more accurate and convenient pathway for diagnosis of COVID-19 or other infectious diseases in low-resource regions.