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Zazueta-Moreno JM, Torres-Avendaño JI, Torres-Montoya EH, Ríos-Tostado JJ, Ramos-Payan R, López-Gutiérrez J, Castillo-Ureta H. Replication of Dengue Virus 4 in Plodia interpunctella (Lepidoptera: Pyralidae) Larvae Under Laboratory Conditions. Vector Borne Zoonotic Dis 2023; 23:639-644. [PMID: 37651186 DOI: 10.1089/vbz.2023.0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
Background: Developing methods for the isolation and replication of dengue virus (DENV), based on nonhematophagous insect models to assess virus-host interaction, would contribute, for instance, to the creation of drugs or vaccines and eventually to the control of the disease. In this regard, nonhematophagous mosquitoes have been used as biological hosts for the isolation of DENV because they are specific and sensitive to a low viral load and viral particles with low infectivity. However, implementation of these models is mainly affected by the complexity of the establishment of the entomological colonies. Materials and Methods: In this study, the susceptibility of DENV-4 infection in Plodia interpunctella larvae was evaluated. Ten larvae, previously inoculated with supernatant from DENV-4-infected C6/36 cells, were processed to determine viral replication by the optical density and 2-ΔΔCt methods at different time intervals (1 and 7 days postinoculation). Results: A prospective increase in viral replication was observed, which did not influence the survival and development of P. interpunctella. Conclusion: These results demonstrate the infectivity of DENV-4 in P. interpunctella, thus becoming an option as a biological model for the study of this etiological agent.
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Affiliation(s)
- José M Zazueta-Moreno
- Posgrado en Ciencias Biológicas, Facultad de Biología, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - José I Torres-Avendaño
- Posgrado en Ciencias Biológicas, Facultad de Biología, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Edith H Torres-Montoya
- Posgrado en Ciencias Biológicas, Facultad de Biología, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - José J Ríos-Tostado
- Posgrado en Ciencias Biológicas, Facultad de Biología, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Rosalío Ramos-Payan
- Posgrado en Ciencias Biomédicas, Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Jorge López-Gutiérrez
- Posgrado en Ciencias Biológicas, Facultad de Biología, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
| | - Hipólito Castillo-Ureta
- Posgrado en Ciencias Biológicas, Facultad de Biología, Universidad Autónoma de Sinaloa, Culiacán, Sinaloa, México
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Rezende TMT, Macera G, Heyndrickx L, Michiels J, Coppens S, Thibaut HJ, Dallmeier K, Van Esbroeck M, Neyts J, Ariën KK, Bartholomeeusen K. Validation of a Reporter Cell Line for Flavivirus Inhibition Assays. Microbiol Spectr 2023; 11:e0502722. [PMID: 36786659 PMCID: PMC10100686 DOI: 10.1128/spectrum.05027-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/25/2023] [Indexed: 02/15/2023] Open
Abstract
Here, we report the validation of a new reporter cell line, Hec1a-IFNB-Luc, for use in inhibition studies of various flaviviruses relevant to human pathology. The reporter system allows the detection of viral replication after luciferase gene activation driven by an interferon beta (IFN-β) promoter. We found the reporter cell line to be highly responsive to all 10 flaviviruses tested, including the 4 dengue virus serotypes. The applicability of the Hec1a-IFNB-Luc reporter cell line for serodiagnostic purposes in neutralizing antibody assays was confirmed by comparison of its sensitivity and specificity to those of "gold-standard," clinically applied, cytopathic effect-based assays, showing comparable performances. The reporter cell line used for the assessment of viral inhibition by small-molecule antiviral compounds was also confirmed, and the sensitivity of the Hec1a-IFNB-Luc reporter cell line was compared to those from published data reporting on the activity of the antivirals in various other assays, indicating that the Hec1a-IFNB-Luc reporter cell line allowed the determination of the inhibitory capacity at least as sensitive as alternative assays. By measuring luciferase activity as a proxy for viral replication, the reporter cell line allows early detection, reducing the time to results from often 5 to 7 days to 3 days, without the need for optical inspection of cytopathic effects, which often differ between viruses and cell lines, streamlining the development of flavivirus assays. IMPORTANCE The Hec1a-IFNB-Luc reporter cell line allows the detection of all 10 flaviviruses tested, including the 4 dengue virus serotypes. Its use for serodiagnostic purposes, measuring neutralizing antibody activity in sera, and the assessment of the antiviral activities of small-molecule compounds was confirmed, and it was found to be comparable to clinically applied assays. The Hec1a-IFNB-Luc reporter cell line allows the rapid and quantitative determination of antiviral effects on multiple human pathological flaviviruses using a single protocol.
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Affiliation(s)
- Tatiana M. T. Rezende
- Institute of Tropical Medicine, Department of Biomedical Sciences, Virology Unit, Antwerp, Belgium
| | - Gabriella Macera
- Institute of Tropical Medicine, Department of Biomedical Sciences, Virology Unit, Antwerp, Belgium
| | - Leo Heyndrickx
- Institute of Tropical Medicine, Department of Biomedical Sciences, Virology Unit, Antwerp, Belgium
| | - Johan Michiels
- Institute of Tropical Medicine, Department of Biomedical Sciences, Virology Unit, Antwerp, Belgium
| | - Sandra Coppens
- Institute of Tropical Medicine, Department of Biomedical Sciences, Virology Unit, Antwerp, Belgium
| | - Hendrik Jan Thibaut
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Translational Platform Virology and Chemotherapy (TPVC), Leuven, Belgium
| | - Kai Dallmeier
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Molecular Vaccinology and Vaccine Discovery (MVVD), Leuven, Belgium
| | - Marjan Van Esbroeck
- Institute of Tropical Medicine, Department of Clinical Sciences, Clinical Reference Lab, Antwerp, Belgium
| | - Johan Neyts
- KU Leuven Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Molecular Vaccinology and Vaccine Discovery (MVVD), Leuven, Belgium
| | - Kevin K. Ariën
- Institute of Tropical Medicine, Department of Biomedical Sciences, Virology Unit, Antwerp, Belgium
| | - Koen Bartholomeeusen
- Institute of Tropical Medicine, Department of Biomedical Sciences, Virology Unit, Antwerp, Belgium
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Segura NA, Muñoz AL, Losada-Barragán M, Torres O, Rodríguez AK, Rangel H, Bello F. Minireview: Epidemiological impact of arboviral diseases in Latin American countries, arbovirus-vector interactions and control strategies. Pathog Dis 2021; 79:6354781. [PMID: 34410378 DOI: 10.1093/femspd/ftab043] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 08/17/2021] [Indexed: 11/13/2022] Open
Abstract
Mosquitoes are the most crucial insects in public health due to their vector capacity and competence to transmit pathogens, including arboviruses, bacterias and parasites. Re-emerging and emerging arboviral diseases, such as yellow fever virus (YFV), dengue virus (DENV), zika virus (ZIKV), and chikungunya virus (CHIKV), constitute one of the most critical health public concerns in Latin America. These diseases present a significant incidence within the human settlements increasing morbidity and mortality events. Likewise, among the different genus of mosquito vectors of arboviruses, those of the most significant medical importance corresponds to Aedes and Culex. In Latin America, the mosquito vector species of YFV, DENV, ZIKV, and CHIKV are mainly Aedes aegypti and Ae. Albopictus. Ae. aegypti is recognized as the primary vector in urban environments, whereas Ae. albopictus, recently introduced in the Americas, is more prone to rural settings. This minireview focuses on what is known about the epidemiological impact of mosquito-borne diseases in Latin American countries, with particular emphasis on YFV, DENV, ZIKV and CHIKV, vector mosquitoes, geographic distribution, and vector-arbovirus interactions. Besides, it was analyzed how climate change and social factors have influenced the spread of arboviruses and the control strategies developed against mosquitoes in this continent.
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Affiliation(s)
- Nidya A Segura
- Faculty of Science, Universidad Pedagógica y Tecnológica de Colombia, Tunja 150003, Colombia
| | - Ana L Muñoz
- PhD Program of Health Science, Universidad Antonio Nariño (UAN), Bogotá 110231, Colombia
| | | | - Orlando Torres
- Faculty of Veterinary, Universidad Antonio Nariño (UAN), Bogotá 110231, Colombia
| | - Anny K Rodríguez
- Faculty of Science, Universidad Antonio Nariño (UAN), Bogotá 110231, Colombia
| | - Héctor Rangel
- Laboratory of Molecular Virology, Instituto Venezolano de Investigaciones Científicas, Caracas 1204, Venezuela
| | - Felio Bello
- Faculty of Agricultural and Livestock Sciences, Program of Veterinary Medicine, Universidad de La Salle, Bogotá 110141, Colombia
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Zika Virus Pathogenesis: A Battle for Immune Evasion. Vaccines (Basel) 2021; 9:vaccines9030294. [PMID: 33810028 PMCID: PMC8005041 DOI: 10.3390/vaccines9030294] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/12/2021] [Accepted: 03/13/2021] [Indexed: 12/13/2022] Open
Abstract
Zika virus (ZIKV) infection and its associated congenital and other neurological disorders, particularly microcephaly and other fetal developmental abnormalities, constitute a World Health Organization (WHO) Zika Virus Research Agenda within the WHO’s R&D Blueprint for Action to Prevent Epidemics, and continue to be a Public Health Emergency of International Concern (PHEIC) today. ZIKV pathogenicity is initiated by viral infection and propagation across multiple placental and fetal tissue barriers, and is critically strengthened by subverting host immunity. ZIKV immune evasion involves viral non-structural proteins, genomic and non-coding RNA and microRNA (miRNA) to modulate interferon (IFN) signaling and production, interfering with intracellular signal pathways and autophagy, and promoting cellular environment changes together with secretion of cellular components to escape innate and adaptive immunity and further infect privileged immune organs/tissues such as the placenta and eyes. This review includes a description of recent advances in the understanding of the mechanisms underlying ZIKV immune modulation and evasion that strongly condition viral pathogenesis, which would certainly contribute to the development of anti-ZIKV strategies, drugs, and vaccines.
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