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Ren T, Zhou L, Min X, Sui M, Zhi X, Mo Y, Huang J, Zhang K, Liu W, Wang H, Wang X, Ouyang K, Chen Y, Huang W, Wei Z. Development of a recombinant reporter Getah virus for antiviral drug screening assays. Vet Microbiol 2023; 281:109742. [PMID: 37075664 DOI: 10.1016/j.vetmic.2023.109742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/03/2023] [Accepted: 04/10/2023] [Indexed: 04/21/2023]
Abstract
Getah virus (GETV), is an often neglected and re-emerging mosquito-borne RNA virus. GETV can cause illness accompanied with high fever, rash, incapacitating arthralgia and chronic arthritis or encephalitic disease in affected animals. Currently, there is no specific treatment or vaccine against GETV infection. In this study, we developed three recombinant viruses by inserting different reporter protein genes between the Cap and pE2 genes. The reporter viruses exhibited high replication capacity similar to the parental virus. The rGECiLOV and rGECGFP viruses were genetically stable within at least ten rounds of passages in BHK-21 cells. We confirmed that the reporter virus, rGECGFP, facilitated the antiviral assays against GETV by testing it with the known inhibitor, ribavirin. It was also found that the compound, doxycycline, showed an inhibitory effect on GETV replication. In addition, rGECGFP was found to be an authentic mimic of the parental virus infection in 3-day-old mice, but with milder pathogenicity. The reporter viruses will contribute to the assessment of viral replication and proliferation, tracking and elucidating of alphavirus-host interactions. In addition, they will help in the screening of potential antiviral compounds.
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Affiliation(s)
- Tongwei Ren
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Lingshan Zhou
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Xiangling Min
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Mengqi Sui
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Xuechun Zhi
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Yongfang Mo
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Jing Huang
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Kang Zhang
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Wenbo Liu
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Hao Wang
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Xindong Wang
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Kang Ouyang
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530005, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning 530005, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning 530005, China
| | - Ying Chen
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530005, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning 530005, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning 530005, China
| | - Weijian Huang
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530005, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning 530005, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning 530005, China
| | - Zuzhang Wei
- Laboratory of Animal infectious Diseases and molecular Immunology, College of Animal Science and Technology, Guangxi University, Nanning 530005, China; Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning 530005, China; Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning 530005, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning 530005, China.
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Ouyang Y, Zhong X, Liao H, Zhu P, Luo K, Zhu H. A New Method for Screening Natural Products to Stimulate IFN-γ Production in Jurkat Human T Lymphocytes. SLAS DISCOVERY 2020; 26:130-139. [PMID: 32441185 DOI: 10.1177/2472555220922475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Interferon-γ (IFN-γ) is a critical cytokine in the defense against viral and bacterial infection. It is mainly produced by natural killer cells and activated T cells. Given its regulatory role in coordinating cellular and humoral immune responses, IFN-γ is considered to be an effective therapeutic agent in the treatment of viral infection. Here we established a fluorescence-based high-content screening model to find small molecules that can stimulate the production of IFN-γ in human Jurkat cells. After a primary screening of 267 natural products, two hits, Astragalus polyphenols and 6-shogaol, were identified to promote the activity of the IFN-γ promoter and subsequently validated by the flow cytometry assay. Obviously, both Astragalus polyphenols and 6-shogaol exhibited potential to induce the transcription and expression of IFN-γ in a dose-dependent manner. These results indicated that our high-content screening model could be a credible and useful platform to contribute to the discovery of novel molecules to promote the expression of IFN-γ and provide leading compounds for the treatment of viral infectious diseases.
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Affiliation(s)
- Yan Ouyang
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Xiaoming Zhong
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Hongqun Liao
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Pengcheng Zhu
- Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Kaiyuan Luo
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Pediatric Internal Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Huifang Zhu
- Neonatal/Pediatric Intensive Care Unit, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China.,Institute of Pediatrics Medicine, Children's Medical Center, First Affiliated Hospital of Gannan Medical University, Ganzhou, China
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Development of a rapid antiviral screening assay based on eGFP reporter virus of Mayaro virus. Antiviral Res 2019; 168:82-90. [PMID: 31150677 DOI: 10.1016/j.antiviral.2019.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/26/2019] [Accepted: 05/28/2019] [Indexed: 01/02/2023]
Abstract
Mayaro virus (MAYV) is a neglected mosquito-borne alphavirus that causes illness similar to Chikungunya (CHIKV), Dengue (DENV) and Zika virus (ZIKV). Currently, there is no specific treatment or vaccine against MAYV infection. To develop an efficient antiviral screening assay for MAYV, we constructed the infectious clones of MAYV strain BeAr 20290 and its eGFP reporter virus. The reporter virus exhibited high replication capacity indistinguishable with the wild type MAYV, and was genetically stable within at least five rounds of passages in BHK-21 cell. The expression of eGFP correlated well with the viral replication. Using the known inhibitor ribavirin, we confirmed that the MAYV-eGFP reporter virus could be used for antiviral screening to identify the specific inhibitors against MAYV. Using the MAYV-eGFP based antiviral assay, we found that the compound 6-Azauridine which had antiviral activity against CHIKV and SFV, showed a significant inhibitory effect on MAYV replication.
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