A CRISPR-Cas12a-Based Diagnostic Method for Japanese Encephalitis Virus Genotypes I, III, and Vopen access
- Authors
- Kwak, Namki; Park, Bum Ju; Song, Yoon-Jae
- Issue Date
- Aug-2023
- Publisher
- MDPI
- Keywords
- Japanese encephalitis virus; diagnosis; CRISPR-Cas12a; DETECTR
- Citation
- BIOSENSORS-BASEL, v.13, no.8
- Journal Title
- BIOSENSORS-BASEL
- Volume
- 13
- Number
- 8
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/89091
- DOI
- 10.3390/bios13080769
- ISSN
- 2079-6374
- Abstract
- The Japanese encephalitis virus (JEV) is prevalent in Asian countries, including Korea, Japan, China, Vietnam, and India. JEV is transmitted to humans by Culex mosquitoes. Despite extensive research efforts, no approved antiviral agents are currently available, although JE can be prevented by vaccination. DNA endonuclease-targeted CRISPR trans reporter (DETECTR) is a newly emerging CRISPR-Cas12a-based molecular diagnostic method combined with isothermal nucleic acid amplification. In this study, DETECTR with reverse transcription-recombinase polymerase amplification (RT-RPA) was effectively utilized for JEV diagnosis and detected down to 10 RNA copies for JEV genotype I (GI) and 1 x 10(2) copies for both GIII and GV, achieving similar sensitivity to RT-PCR while displaying no cross-reaction with other viruses. A one-tube, one-temperature format of DETECTR was further developed, and its efficiency compared with that of conventional DETECTR.
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