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Boissinot S, Ducousso M, Brault V, Drucker M. Bioluminescence Production by Turnip Yellows Virus Infectious Clones: A New Way to Monitor Plant Virus Infection. Int J Mol Sci 2022; 23:ijms232213685. [PMID: 36430165 PMCID: PMC9692398 DOI: 10.3390/ijms232213685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/25/2022] [Accepted: 10/29/2022] [Indexed: 11/10/2022] Open
Abstract
We used the NanoLuc luciferase bioluminescent reporter system to detect turnip yellows virus (TuYV) in infected plants. For this, TuYV was genetically tagged by replacing the C-terminal part of the RT protein with full-length NanoLuc (TuYV-NL) or with the N-terminal domain of split NanoLuc (TuYV-N65-NL). Wild-type and recombinant viruses were agro-infiltrated in Nicotiana benthamiana, Montia perfoliata, and Arabidopsis thaliana. ELISA confirmed systemic infection and similar accumulation of the recombinant viruses in N. benthamiana and M. perfoliata but reduced systemic infection and lower accumulation in A. thaliana. RT-PCR analysis indicated that the recombinant sequences were stable in N. benthamiana and M. perfoliata but not in A. thaliana. Bioluminescence imaging detected TuYV-NL in inoculated and systemically infected leaves. For the detection of split NanoLuc, we constructed transgenic N. benthamiana plants expressing the C-terminal domain of split NanoLuc. Bioluminescence imaging of these plants after agro-infiltration with TuYV-N65-NL allowed the detection of the virus in systemically infected leaves. Taken together, our results show that NanoLuc luciferase can be used to monitor infection with TuYV.
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Affiliation(s)
- Sylvaine Boissinot
- Santé de la Vigne et Qualiité du Vin, Unité Mixte de Recherche 1131, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Centre Grand Est, Université Strasbourg, 68000 Colmar, France
| | - Marie Ducousso
- Plant Health Institute Montpellier, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, CIRAD, Institut de Recherche pour le Développement, Institut Agro, Université Montpellier, 34980 Montferrier sur Lez, France
| | - Véronique Brault
- Santé de la Vigne et Qualiité du Vin, Unité Mixte de Recherche 1131, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Centre Grand Est, Université Strasbourg, 68000 Colmar, France
| | - Martin Drucker
- Santé de la Vigne et Qualiité du Vin, Unité Mixte de Recherche 1131, Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Centre Grand Est, Université Strasbourg, 68000 Colmar, France
- Correspondence:
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Construction and characterization of a full-length, replication-competent and infectious enhanced green fluorescence protein-tagged HIV-1 subtype C molecular clone. Virology 2022; 571:34-38. [DOI: 10.1016/j.virol.2022.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 11/19/2022]
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Kirui J, Freed EO. Generation and validation of a highly sensitive bioluminescent HIV-1 reporter vector that simplifies measurement of virus release. Retrovirology 2020; 17:12. [PMID: 32430080 PMCID: PMC7235552 DOI: 10.1186/s12977-020-00521-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 05/12/2020] [Indexed: 02/23/2023] Open
Abstract
Background The continued persistence of HIV-1 as a public health concern due to the lack of a cure calls for the development of new tools for studying replication of the virus. Here, we used NanoLuc, a small and extremely bright luciferase protein, to develop an HIV-1 bioluminescent reporter virus that simplifies functional measurement of virus particle production. Results The reporter virus encodes a Gag protein containing NanoLuc inserted between the matrix (MA) and capsid (CA) domains of Gag, thereby generating virus particles that package high levels of the NanoLuc reporter. We observe that inserting the NanoLuc protein within HIV-1 Gag has minimal impact on Gag expression and virus particle release. We show that the reporter virus recapitulates inhibition of HIV-1 particle release by Gag mutations, the restriction factor tetherin, and the small-molecule inhibitor amphotericin-B methyl ester. Conclusion These results demonstrate that this vector will provide a simple and rapid tool for functional studies of virus particle assembly and release and high-throughput screening for cellular factors and small molecules that promote or inhibit HIV-1 particle production.
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Affiliation(s)
- James Kirui
- Virus-Cell Interaction Section, HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA
| | - Eric O Freed
- Virus-Cell Interaction Section, HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA.
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Zhang Y, Wang C, Gao N, Zhang X, Yu X, Xu J, Gao F. Determination of neutralization activities by a new versatile assay using an HIV-1 genome carrying the Gaussia luciferase gene. J Virol Methods 2019; 267:22-28. [PMID: 30817948 DOI: 10.1016/j.jviromet.2019.02.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/25/2019] [Accepted: 02/25/2019] [Indexed: 11/26/2022]
Abstract
Characterization of neutralizing activities are critical to evaluation of the neutralization potency and breadth of monoclonal antibodies or anti-HIV-1 sera elicited during natural HIV-1 infection or by vaccines. We have developed a new neutralization method using the SG3Δenv genome carrying the Gaussia luciferase gene between the env and nef genes. Pseudotype viruses generated using this new SG3Δenv-GLuc backbone together with HIV-1 env genes were infectious to TZM-bl cells, T cell lines and primary T cells. Viral infection can be detected by measuring luciferase activities with both lysed cells and culture supernatants. Neutralization titers in sera from HIV-1-infected individuals against tier 1 and tier 2 viruses were comparable to those determined by the gold standard TZM-bl-firefly method. Since the neutralization activities can be determined by repeatedly measuring luciferase activities in culture supernatants of any cells that are infected by SG3Δenv-GLuc-Env pseudotype viruses, this new method can serve as a versatile and high throughput assay to determine neutralization activities.
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Affiliation(s)
- Yuepeng Zhang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China
| | - Chu Wang
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China
| | - Nan Gao
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China
| | - Xiaoyan Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Xianghui Yu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China; Key Laboratory for Molecular Enzymology and Engineering, the Ministry of Education, School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China
| | - Jianqing Xu
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Feng Gao
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, Jilin, 130012, China; Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA.
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Kaskova ZM, Tsarkova AS, Yampolsky IV. 1001 lights: luciferins, luciferases, their mechanisms of action and applications in chemical analysis, biology and medicine. Chem Soc Rev 2018; 45:6048-6077. [PMID: 27711774 DOI: 10.1039/c6cs00296j] [Citation(s) in RCA: 200] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bioluminescence (BL) is a spectacular phenomenon involving light emission by live organisms. It is caused by the oxidation of a small organic molecule, luciferin, with molecular oxygen, which is catalysed by the enzyme luciferase. In nature, there are approximately 30 different BL systems, of which only 9 have been studied to various degrees in terms of their reaction mechanisms. A vast range of in vitro and in vivo analytical techniques have been developed based on BL, including tests for different analytes, immunoassays, gene expression assays, drug screening, bioimaging of live organisms, cancer studies, the investigation of infectious diseases and environmental monitoring. This review aims to cover the major existing applications for bioluminescence in the context of the diversity of luciferases and their substrates, luciferins. Particularly, the properties and applications of d-luciferin, coelenterazine, bacterial, Cypridina and dinoflagellate luciferins and their analogues along with their corresponding luciferases are described. Finally, four other rarely studied bioluminescent systems (those of limpet Latia, earthworms Diplocardia and Fridericia and higher fungi), which are promising for future use, are also discussed.
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Affiliation(s)
- Zinaida M Kaskova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia. and Pirogov Russian National Research Medical University, Ostrovitianova 1, Moscow 117997, Russia
| | - Aleksandra S Tsarkova
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia. and Pirogov Russian National Research Medical University, Ostrovitianova 1, Moscow 117997, Russia
| | - Ilia V Yampolsky
- Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, Moscow 117997, Russia. and Pirogov Russian National Research Medical University, Ostrovitianova 1, Moscow 117997, Russia
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Song KY, Zhao H, Jiang ZY, Li XF, Deng YQ, Jiang T, Zhu SY, Shi PY, Zhang B, Zhang FC, Qin ED, Qin CF. A novel reporter system for neutralizing and enhancing antibody assay against dengue virus. BMC Microbiol 2014; 14:44. [PMID: 24548533 PMCID: PMC3930823 DOI: 10.1186/1471-2180-14-44] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 02/12/2014] [Indexed: 12/21/2022] Open
Abstract
Background Dengue virus (DENV) still poses a global public health threat, and no vaccine or antiviral therapy is currently available. Antibody plays distinct roles in controlling DENV infections. Neutralizing antibody is protective against DENV infection, whereas sub-neutralizing concentration of antibody can increase DENV infection, termed antibody-dependent enhancement (ADE). Plaque-based assay represents the most widely accepted method measuring neutralizing or enhancing antibodies. Results In this study, a novel reporter virus-based system was developed for measuring neutralization and ADE activity. A stable Renilla luciferase reporter DENV (Luc-DENV) that can produce robust luciferase signals in BHK-21 and K562 cells were used to establish the assay and validated against traditional plaque-based assay. Luciferase value analysis using various known DENV-specific monoclonal antibodies showed good repeatability and a well linear correlation with conventional plaque-based assays. The newly developed assay was finally validated with clinical samples from infected animals and individuals. Conclusions This reporter virus-based assay for neutralizing and enhancing antibody evaluation is rapid, lower cost, and high throughput, and will be helpful for laboratory detection and epidemiological investigation for DENV antibodies.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Cheng-Feng Qin
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.
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