In vitro antiviral activity of ribavirin against severe fever with thrombocytopenia syndrome virus.
- Author:
Myung Jin LEE
1
;
Kye Hyung KIM
;
Jongyoun YI
;
Su Jin CHOI
;
Pyoeng Gyun CHOE
;
Wan Beom PARK
;
Nam Joong KIM
;
Myoung don OH
Author Information
- Publication Type:Original Article
- Keywords: Bunyaviridae infections; Phlebovirus; Ribavirin; Antiviral agents
- MeSH: Antiviral Agents; Bunyaviridae Infections; Communicable Diseases, Emerging; Fever*; In Vitro Techniques*; Methods; Orthobunyavirus; Phlebovirus; Polymerase Chain Reaction; Reverse Transcription; Ribavirin*; RNA, Viral; Thrombocytopenia*; Vero Cells
- From:The Korean Journal of Internal Medicine 2017;32(4):731-737
- CountryRepublic of Korea
- Language:English
- Abstract: BACKGROUND/AIMS: Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease caused by severe fever with thrombocytopenia syndrome virus (SFTSV), a novel bunyavirus. As yet, there is no effective antiviral therapy for SFTS. Ribavirin is a broad-spectrum antiviral agent, which has been tried for treatment of SFTS. In this study, antiviral activity of ribavirin against SFTSV has been investigated. METHODS: Vero cell-grown SFTSV strain Gangwon/Korea/2012 was treated with ribavirin at various concentrations. Antiviral activity of ribavirin was evaluated by inhibition of the SFTSV cytopathic effect in Vero cells and quantification of viral RNA load in culture supernatant using one-step real-time reverse transcription polymerase chain reaction. Cytotoxicity of ribavirin was determined by a tetrazolium-based colorimetric method. RESULTS: Ribavirin reduced SFTSV titers in a dose-dependent manner, with a half-maximal inhibitory concentration ranged from 3.69 to 8.72 μg/mL. Cytopathic effects were reduced as ribavirin concentration increased. No significant cytotoxicity was detected at ribavirin concentrations of ≤ 31.3 μg/mL. CONCLUSIONS: Ribavirin exhibited inhibitory activity against SFTSV replication in vitro, which suggests that ribavirin can be used as a potential antiviral agent for SFTS.
