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Gallichotte EN, Baric TJ, Nivarthi U, Delacruz MJ, Graham R, Widman DG, Yount BL, Durbin AP, Whitehead SS, de Silva AM, Baric RS. Genetic Variation between Dengue Virus Type 4 Strains Impacts Human Antibody Binding and Neutralization. Cell Rep 2019; 25:1214-1224. [PMID: 30380413 PMCID: PMC6226424 DOI: 10.1016/j.celrep.2018.10.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/15/2018] [Accepted: 09/28/2018] [Indexed: 11/29/2022] Open
Abstract
There are four distinct DENV serotypes, and within DENV4, there are five distinct genotypes. The impact of genotypic diversity is not known, nor is it clear whether infection with one DENV4 genotype results in protective immunity against the other genotypes. To measure the impact of DENV4 genetic diversity, we generated an isogenic panel of viruses containing the envelope protein from the different genotypes. We characterized many properties of these viruses and find that a small number of amino acids changes within the envelope have disproportionate impacts on virus biology. Additionally, we observe large differences in the ability of DENV4 antibodies, immune sera, and vaccine sera to neutralize the panel, suggesting that DENV4 immunity might not be equally protective against all DENV4s. Our results support the monitoring of changing or emerging DENV genotypes and their role in escaping pre-existing neutralizing antibodies in people who have been vaccinated or exposed to natural DENV4 infections. There is amino acid variability within the envelope protein across DENV4 genotypes DENV4 viruses differ in maturation, glycosylation, and ability to infect cells Monoclonal antibodies differentially bind and neutralize DENV4 genotype viruses Infection and vaccination elicit antibodies, which neutralize DENV4s differently
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Affiliation(s)
- Emily N Gallichotte
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA.
| | - Thomas J Baric
- Department of Epidemiology, University of North Carolina at Chapel Hill School of Public Health, Chapel Hill, NC, USA
| | - Usha Nivarthi
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Matthew J Delacruz
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Rachel Graham
- Department of Epidemiology, University of North Carolina at Chapel Hill School of Public Health, Chapel Hill, NC, USA
| | - Douglas G Widman
- Department of Epidemiology, University of North Carolina at Chapel Hill School of Public Health, Chapel Hill, NC, USA
| | - Boyd L Yount
- Department of Epidemiology, University of North Carolina at Chapel Hill School of Public Health, Chapel Hill, NC, USA
| | - Anna P Durbin
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Stephen S Whitehead
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Aravinda M de Silva
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Ralph S Baric
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA; Department of Epidemiology, University of North Carolina at Chapel Hill School of Public Health, Chapel Hill, NC, USA.
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Sittivicharpinyo T, Wonnapinij P, Surat W. Complete coding sequence of dengue virus serotype 4 isolated from field-caught mosquitoes in Thailand. Mem Inst Oswaldo Cruz 2017; 112:580-582. [PMID: 28767984 PMCID: PMC5530551 DOI: 10.1590/0074-02760170022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 03/22/2017] [Indexed: 11/21/2022] Open
Abstract
This report is the first to characterise the complete coding sequence of a dengue virus serotype 4 (DENV-4) genotype I that was isolated from field-caught mosquitoes from an endemic area in Thailand in June 2013. The sequence was assembled from high-throughput sequencing reads generated by Illumina HiSeq. Three out of four observed intra-sample variants caused an amino acid variation in C, NS2B, and NS5 genes. The C4279T variant located in the NS2B gene can indirectly affect the proteolytic activity of the NS3 protein. The sequence provided in this study might be useful for the epidemiological study of DENV-4.
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Affiliation(s)
- Thikhumporn Sittivicharpinyo
- Kasetsart University, Faculty of Science, Department of Genetics, Evolutionary Genetics and Computational Biology Research Unit, Bangkok, Thailand
| | - Passorn Wonnapinij
- Kasetsart University, Faculty of Science, Department of Genetics, Evolutionary Genetics and Computational Biology Research Unit, Bangkok, Thailand.,Kasetsart University, National Research University-Kasetsart, Centre for Advanced Studies in Tropical Natural Resources, Bangkok, Thailand
| | - Wunrada Surat
- Kasetsart University, Faculty of Science, Department of Genetics, Evolutionary Genetics and Computational Biology Research Unit, Bangkok, Thailand.,Kasetsart University, National Research University-Kasetsart, Centre for Advanced Studies in Tropical Natural Resources, Bangkok, Thailand
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Rodriguez-Roche R, Gould EA. Understanding the dengue viruses and progress towards their control. BIOMED RESEARCH INTERNATIONAL 2013; 2013:690835. [PMID: 23936833 PMCID: PMC3722981 DOI: 10.1155/2013/690835] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 05/08/2013] [Indexed: 01/12/2023]
Abstract
Traditionally, the four dengue virus serotypes have been associated with fever, rash, and the more severe forms, haemorrhagic fever and shock syndrome. As our knowledge as well as understanding of these viruses increases, we now recognise not only that they are causing increasing numbers of human infections but also that they may cause neurological and other clinical complications, with sequelae or fatal consequences. In this review we attempt to highlight some of these features in the context of dengue virus pathogenesis. We also examine some of the efforts currently underway to control this "scourge" of the tropical and subtropical world.
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Affiliation(s)
- Rosmari Rodriguez-Roche
- Pedro Kouri Tropical Medicine Institute, WHO/PAHO Collaborating Centre for the Study of Dengue and Its Vector, Havana, Cuba.
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Rodriguez-Roche R, Villegas E, Cook S, Poh Kim PAW, Hinojosa Y, Rosario D, Villalobos I, Bendezu H, Hibberd ML, Guzman MG. Population structure of the dengue viruses, Aragua, Venezuela, 2006-2007. Insights into dengue evolution under hyperendemic transmission. INFECTION GENETICS AND EVOLUTION 2011; 12:332-44. [PMID: 22197765 PMCID: PMC3919160 DOI: 10.1016/j.meegid.2011.12.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 12/08/2011] [Accepted: 12/10/2011] [Indexed: 12/16/2022]
Abstract
During the past three decades there has been a notable increase in dengue disease severity in Venezuela. Nevertheless, the population structure of the viruses being transmitted in this country is not well understood. Here, we present a molecular epidemiological study on dengue viruses (DENV) circulating in Aragua State, Venezuela during 2006-2007. Twenty-one DENV full-length genomes representing all of the four serotypes were amplified and sequenced directly from the serum samples. Notably, only DENV-2 was associated with severe disease. Phylogenetic trees constructed using Bayesian methods indicated that only one genotype was circulating for each serotype. However, extensive viral genetic diversity was found in DENV isolated from the same area during the same period, indicating significant in situ evolution since the introduction of these genotypes. Collectively, the results suggest that the non-structural (NS) proteins may play an important role in DENV evolution, particularly NS1, NS2A and NS4B proteins. The phylogenetic data provide evidence to suggest that multiple introductions of DENV have occurred from the Latin American region into Venezuela and vice versa. The implications of the significant viral genetic diversity generated during hyperendemic transmission, particularly in NS protein are discussed and considered in the context of future development and use of human monoclonal antibodies as antivirals and tetravalent vaccines.
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Tang Y, Rodpradit P, Chinnawirotpisan P, Mammen MP, Li T, Lynch JA, Putnak R, Zhang C. Comparative analysis of full-length genomic sequences of 10 dengue serotype 1 viruses associated with different genotypes, epidemics, and disease severity isolated in Thailand over 22 years. Am J Trop Med Hyg 2010; 83:1156-65. [PMID: 21036855 DOI: 10.4269/ajtmh.2010.10-0052] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Comparative sequence analysis was performed on the full-length genomic sequences of 10 representative dengue virus serotype 1 (DENV-1) strains sampled from patients at Children's Hospital, Bangkok, Thailand over a 22-year period, which represented different epidemics, disease severity, and sampling time. The results showed remarkable inter-genotypic variation between predominant and non-predominant genotypes and genotype-specific amino acids and nucleotides throughout the entire viral genome except for the 5'-non-translated region. The frequency of intra-genotypic variation was correlated with dengue transmission rate and sampling time. The 5'-non-translated region of all 10 viruses was highly conserved for predominant and non-predominant genotypes and NS2B was the most conserved protein. Some intra-genotypic substitutions of amino acids and nucleotides in predominant genotype strains were fixed in the viral genome since 1994, which indicated that the evolution of predominant genotype strains in situ over time might contribute to increased virus fitness important for sustaining dengue epidemics in Thailand.
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Affiliation(s)
- Yuxin Tang
- Division of Viral Diseases, Walter Reed Army Institute of Research, Silver Spring, Maryland 20910, USA
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