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Junjhon J, Panyasu K, Chaiyaloom S, Saipin K, Somasa P, Sangiambut S, Puttikhunt C, Sriburi R, Keelapang P, Ekchariyawat P, Avirutnan P, Hirunpetcharat C, Sittisombut N. Generation and characterization of luciferase-secreting, single-round infectious DENV-2 reporter for functional antibody assays. J Virol Methods 2021; 291:114119. [PMID: 33662412 DOI: 10.1016/j.jviromet.2021.114119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/27/2021] [Accepted: 02/27/2021] [Indexed: 12/27/2022]
Abstract
Flavivirus reporters provide a robust tool for viral pathogenesis studies, anti-viral drug screening, disease diagnosis and functional antibody assays. In this study, we generated a luciferase-secreting, single-round reporter virus by replacing the capsid coding region in a DENV-2 genome with the secretory form of Lucia luciferase gene to produce infectious viral particles in a stable capsid-expressing mosquito cell line. Replication of the reporter virus in trans-complementing mosquito cells was sustained for up to two weeks. There were strong correlations between the extracellular luciferase activity and infectious reporter virus inocula upon infection of mosquito and mammalian cell lines with graded quantities of the reporter virus. A set of anti-E and anti-prM monoclonal antibodies affected the infectivity of reporter virus with similar dose-effect relationships as the parent virus. This simplified version of DENV-2 reporter provides a rapid and reliable method for the detection of neutralizing and infection-enhancing antibodies against dengue virus.
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Affiliation(s)
- Jiraphan Junjhon
- Department of Microbiology, Faculty of Public Health, Mahidol University, Bangkok, 10400, Thailand.
| | - Kedsara Panyasu
- Department of Microbiology, Faculty of Public Health, Mahidol University, Bangkok, 10400, Thailand
| | - Suwipa Chaiyaloom
- Department of Microbiology, Faculty of Public Health, Mahidol University, Bangkok, 10400, Thailand
| | - Krongkan Saipin
- Department of Microbiology, Faculty of Public Health, Mahidol University, Bangkok, 10400, Thailand
| | - Pornsiri Somasa
- Department of Microbiology, Faculty of Public Health, Mahidol University, Bangkok, 10400, Thailand
| | - Sutha Sangiambut
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum-thani, 12120, Thailand; Division of Dengue Hemorrhagic Fever Research and Siriraj Center of Research Excellence in Dengue and Emerging Pathogens, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Chunya Puttikhunt
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum-thani, 12120, Thailand; Division of Dengue Hemorrhagic Fever Research and Siriraj Center of Research Excellence in Dengue and Emerging Pathogens, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Rungtawan Sriburi
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Poonsook Keelapang
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Peeraya Ekchariyawat
- Department of Microbiology, Faculty of Public Health, Mahidol University, Bangkok, 10400, Thailand
| | - Panisadee Avirutnan
- Division of Dengue Hemorrhagic Fever Research and Siriraj Center of Research Excellence in Dengue and Emerging Pathogens, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Chakrit Hirunpetcharat
- Department of Microbiology, Faculty of Public Health, Mahidol University, Bangkok, 10400, Thailand
| | - Nopporn Sittisombut
- Molecular Biology of Dengue and Flaviviruses Research Team, Medical Molecular Biotechnology Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum-thani, 12120, Thailand; Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
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