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Lizarazo E, Couto N, Vincenti-Gonzalez M, Raangs EC, Velasco Z, Bethencourt S, Jaenisch T, Friedrich AW, Tami A, Rossen JW. Applied shotgun metagenomics approach for the genetic characterization of dengue viruses. J Biotechnol 2019; 306S:100009. [PMID: 34112375 DOI: 10.1016/j.btecx.2019.100009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 05/05/2019] [Accepted: 05/06/2019] [Indexed: 12/19/2022]
Abstract
Dengue virus (DENV), an arthropod-borne virus, has rapidly spread in recent years. DENV diagnosis is performed through virus serology, isolation or molecular detection, while genotyping is usually done through Sanger sequencing of the envelope gene. This study aimed to optimize the use of shotgun metagenomics and subsequent bioinformatics analysis to detect and type DENV directly from clinical samples without targeted amplification. Additionally, presence of DENV quasispecies (intra-host variation) was revealed by detecting single nucleotide variants. Viral RNA was isolated with or without DNase-I treatment from 17 DENV (1-4) positive blood samples. cDNA libraries were generated using either a combination of the NEBNext® RNA to synthesize cDNA followed by Nextera XT DNA library preparation, or the TruSeq RNA V2 (TS) library preparation kit. Libraries were sequenced using both the MiSeq and NextSeq. Bioinformatic analysis showed complete ORFs for all samples by all approaches, but longer contigs and higher sequencing depths were obtained with the TS kit. No differences were observed between MiSeq and NextSeq sequencing. Detection of multiple DENV serotypes in a single sample was feasible. Finally, results were obtained within three days with associated reagents costs between €130-170/sample. Therefore, shotgun metagenomics is suitable for identification and typing of DENV in a clinical setting.
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Affiliation(s)
- Erley Lizarazo
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands
| | - Natacha Couto
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands
| | - Maria Vincenti-Gonzalez
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands
| | - Erwin C Raangs
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands
| | - Zoraida Velasco
- Universidad de Carabobo, Facultad Experimental de Ciencias y Tecnología, Departamento de Biología, Valencia, Venezuela
| | - Sarah Bethencourt
- Universidad de Carabobo, Facultad de Ciencias de la Salud. Departamento de Ciencias Fisiológicas, Unidad de Investigación en Inmunología, Valencia, Venezuela
| | - Thomas Jaenisch
- University of Heidelberg, Heidelberg University Hospital, Department of Infectious Diseases, Section of Clinical Tropical Medicine, Heidelberg, Germany
| | - Alexander W Friedrich
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands
| | - Adriana Tami
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands; Universidad de Carabobo, Facultad de Ciencias de la Salud, Departamento de Parasitología, Valencia, Venezuela
| | - John W Rossen
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands.
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Gaye A, Wang E, Vasilakis N, Guzman H, Diallo D, Talla C, Ba Y, Dia I, Weaver SC, Diallo M. Potential for sylvatic and urban Aedes mosquitoes from Senegal to transmit the new emerging dengue serotypes 1, 3 and 4 in West Africa. PLoS Negl Trop Dis 2019; 13:e0007043. [PMID: 30759080 PMCID: PMC6373929 DOI: 10.1371/journal.pntd.0007043] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 12/02/2018] [Indexed: 01/19/2023] Open
Abstract
Dengue fever (DEN) is the most common arboviral disease in the world and dengue virus (DENV) causes 390 million annual infections around the world, of which 240 million are inapparent and 96 million are symptomatic. During the past decade a changing epidemiological pattern has been observed in Africa, with DEN outbreaks reported in all regions. In Senegal, all DENV serotypes have been reported. These important changes in the epidemiological profile of DEN are occurring in a context where there is no qualified vaccine against DEN. Further there is significant gap of knowledge on the vector bionomics and transmission dynamics in the African region to effectively prevent and control epidemics. Except for DENV-2, few studies have been performed with serotypes 1, 3, and 4, so this study was undertaken to fill out this gap. We assessed the vector competence of Aedes (Diceromyia) furcifer, Ae. (Diceromyia) taylori, Ae. (Stegomyia) luteocephalus, sylvatic and urban Ae. (Stegomyia) aegypti populations from Senegal for DENV-1, DENV-3 and DENV-4 using experimental oral infection. Whole bodies and wings/legs were tested for DENV presence by cell culture assays and saliva samples were tested by real time RT-PCR to estimate infection, disseminated infection and transmission rates. Our results revealed a low capacity of sylvatic and urban Aedes mosquitoes from Senegal to transmit DENV-1, DENV-3 and DENV-4 and an impact of infection on their mortality. The highest potential transmission rate was 20% despite the high susceptibility and disseminated infection rates up to 93.7% for the 3 Ae. aegypti populations tested, and 84.6% for the sylvatic vectors Ae. furcifer, Ae. taylori and Ae. luteocephalus.
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Affiliation(s)
- Alioune Gaye
- Unité d’Entomologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal
| | - Eryu Wang
- Institute for Human Infections and Immunity, Center for Tropical Diseases and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Nikos Vasilakis
- Institute for Human Infections and Immunity, Center for Tropical Diseases and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
- Department of Pathology and Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Hilda Guzman
- Department of Pathology and Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Diawo Diallo
- Unité d’Entomologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal
| | - Cheikh Talla
- Epidemiological Infectious Disease Unit, Institut Pasteur de Dakar, Dakar, Senegal
| | - Yamar Ba
- Unité d’Entomologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal
| | - Ibrahima Dia
- Unité d’Entomologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal
| | - Scott C. Weaver
- Institute for Human Infections and Immunity, Center for Tropical Diseases and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas
| | - Mawlouth Diallo
- Unité d’Entomologie Médicale, Institut Pasteur de Dakar, Dakar, Senegal
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53
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Ferri CA, Formichela MM, Valdez JR, Rocío Medina IM, Dusse GV, Malvasi GN, Zapata PD, Malarczuk EC. Asymptomatic dengue virus cases in misiones, Argentina: a seroprevalence study in the university population. Microbes Infect 2019; 21:184-187. [PMID: 30668989 DOI: 10.1016/j.micinf.2018.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 09/16/2018] [Accepted: 12/28/2018] [Indexed: 10/27/2022]
Abstract
Dengue infection may be asymptomatic and may produce the typical symptoms of a benign illness or serious hemorrhagic and often fatal symptoms. Asymptomatic cases are statistically relevant and quite variable depending on the geographic area under study. However, there are no reports of asymptomatic population infected by the dengue virus in Misiones. In this study, 288 samples were analyzed, and the IgG anti dengue antibodies detected accounted for 6.6% of cases, while 89% corresponded to individuals who lived with people diagnosed or suspected of having contracted dengue, p= <0.001.
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Affiliation(s)
- Cristian Alberto Ferri
- Molecular Biotechnology Laboratory, Misiones Biotechnology Institute, Faculty of Exact, Chemical and Natural Sciences, Universidad Nacional de Misiones, Campus Universitario UNaM, Ruta 12 Km 7.5, 3304, Posadas, Misiones, Argentina; Chair of Medical Biochemistry, Faculty of Health Sciences, Universidad Católica de las Misiones, Avenida Jauretche 1036, Esquina Av. Urquiza, 3300, Posadas, Misiones, Argentina.
| | - María Mercedes Formichela
- Chair of Clinical Biochemistry II, Biochemistry and Pharmacology Module, Faculty of Exact, Chemical and Natural Sciences, UNaM, Av. Mariano Moreno 1375 3300, Posadas, Misiones, Argentina
| | - José Ricardo Valdez
- Chair of Medical Biochemistry, Faculty of Health Sciences, Universidad Católica de las Misiones, Avenida Jauretche 1036, Esquina Av. Urquiza, 3300, Posadas, Misiones, Argentina
| | - Ivana Magalí Rocío Medina
- Chair of Clinical Biochemistry II, Biochemistry and Pharmacology Module, Faculty of Exact, Chemical and Natural Sciences, UNaM, Av. Mariano Moreno 1375 3300, Posadas, Misiones, Argentina
| | - Graciela Viviana Dusse
- Chair of Medical Biochemistry, Faculty of Health Sciences, Universidad Católica de las Misiones, Avenida Jauretche 1036, Esquina Av. Urquiza, 3300, Posadas, Misiones, Argentina; Chair of Clinical Biochemistry II, Biochemistry and Pharmacology Module, Faculty of Exact, Chemical and Natural Sciences, UNaM, Av. Mariano Moreno 1375 3300, Posadas, Misiones, Argentina
| | - Graciela Noemí Malvasi
- Chair of Clinical Biochemistry II, Biochemistry and Pharmacology Module, Faculty of Exact, Chemical and Natural Sciences, UNaM, Av. Mariano Moreno 1375 3300, Posadas, Misiones, Argentina
| | - Pedro Darío Zapata
- Molecular Biotechnology Laboratory, Misiones Biotechnology Institute, Faculty of Exact, Chemical and Natural Sciences, Universidad Nacional de Misiones, Campus Universitario UNaM, Ruta 12 Km 7.5, 3304, Posadas, Misiones, Argentina
| | - Elba Cristina Malarczuk
- Chair of Clinical Biochemistry II, Biochemistry and Pharmacology Module, Faculty of Exact, Chemical and Natural Sciences, UNaM, Av. Mariano Moreno 1375 3300, Posadas, Misiones, Argentina
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Wilder-Smith A, Chawla T, Ooi EE. Dengue: An Expanding Neglected Tropical Disease. NEGLECTED TROPICAL DISEASES - EAST ASIA 2019. [DOI: 10.1007/978-3-030-12008-5_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Predicting wildlife reservoirs and global vulnerability to zoonotic Flaviviruses. Nat Commun 2018; 9:5425. [PMID: 30575757 PMCID: PMC6303316 DOI: 10.1038/s41467-018-07896-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 12/05/2018] [Indexed: 11/09/2022] Open
Abstract
Flaviviruses continue to cause globally relevant epidemics and have emerged or re-emerged in regions that were previously unaffected. Factors determining emergence of flaviviruses and continuing circulation in sylvatic cycles are incompletely understood. Here we identify potential sylvatic reservoirs of flaviviruses and characterize the macro-ecological traits common to known wildlife hosts to predict the risk of sylvatic flavivirus transmission among wildlife and identify regions that could be vulnerable to outbreaks. We evaluate variability in wildlife hosts for zoonotic flaviviruses and find that flaviviruses group together in distinct clusters with similar hosts. Models incorporating ecological and climatic variables as well as life history traits shared by flaviviruses predict new host species with similar host characteristics. The combination of vector distribution data with models for flavivirus hosts allows for prediction of global vulnerability to flaviviruses and provides potential targets for disease surveillance in animals and humans.
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56
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Tracking virus outbreaks in the twenty-first century. Nat Microbiol 2018; 4:10-19. [PMID: 30546099 PMCID: PMC6345516 DOI: 10.1038/s41564-018-0296-2] [Citation(s) in RCA: 228] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 10/19/2018] [Indexed: 02/08/2023]
Abstract
Emerging viruses have the potential to impose substantial mortality, morbidity and economic burdens on human populations. Tracking the spread of infectious diseases to assist in their control has traditionally relied on the analysis of case data gathered as the outbreak proceeds. Here, we describe how many of the key questions in infectious disease epidemiology, from the initial detection and characterization of outbreak viruses, to transmission chain tracking and outbreak mapping, can now be much more accurately addressed using recent advances in virus sequencing and phylogenetics. We highlight the utility of this approach with the hypothetical outbreak of an unknown pathogen, ‘Disease X’, suggested by the World Health Organization to be a potential cause of a future major epidemic. We also outline the requirements and challenges, including the need for flexible platforms that generate sequence data in real-time, and for these data to be shared as widely and openly as possible. This Review Article describes how recent advances in viral genome sequencing and phylogenetics have enabled key issues associated with outbreak epidemiology to be more accurately addressed, and highlights the requirements and challenges for generating, sharing and using such data when tackling a viral outbreak.
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57
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Ke PY. The Multifaceted Roles of Autophagy in Flavivirus-Host Interactions. Int J Mol Sci 2018; 19:ijms19123940. [PMID: 30544615 PMCID: PMC6321027 DOI: 10.3390/ijms19123940] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/05/2018] [Accepted: 12/05/2018] [Indexed: 02/06/2023] Open
Abstract
Autophagy is an evolutionarily conserved cellular process in which intracellular components are eliminated via lysosomal degradation to supply nutrients for organelle biogenesis and metabolic homeostasis. Flavivirus infections underlie multiple human diseases and thus exert an immense burden on public health worldwide. Mounting evidence indicates that host autophagy is subverted to modulate the life cycles of flaviviruses, such as hepatitis C virus, dengue virus, Japanese encephalitis virus, West Nile virus and Zika virus. The diverse interplay between autophagy and flavivirus infection not only regulates viral growth in host cells but also counteracts host stress responses induced by viral infection. In this review, we summarize the current knowledge on the role of autophagy in the flavivirus life cycle. We also discuss the impacts of virus-induced autophagy on the pathogeneses of flavivirus-associated diseases and the potential use of autophagy as a therapeutic target for curing flavivirus infections and related human diseases.
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Affiliation(s)
- Po-Yuan Ke
- Department of Biochemistry & Molecular Biology and Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan.
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan.
- Division of Allergy, Immunology and Rheumatology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan.
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59
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Weaver SC. Prediction and prevention of urban arbovirus epidemics: A challenge for the global virology community. Antiviral Res 2018; 156:80-84. [PMID: 29906475 PMCID: PMC6082388 DOI: 10.1016/j.antiviral.2018.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 06/10/2018] [Accepted: 06/11/2018] [Indexed: 12/11/2022]
Abstract
The recent emergence and rapid spread of Zika virus in tropical regions of the Western Hemisphere took arbovirologists and public health officials by surprise, and the earlier transfers of West Nile and chikungunya viruses from the Old to the New World were also unexpected. These pandemics underscore the increasing threat of zoonotic arboviruses, especially those that are capable of entering into human-amplified, urban transmission cycles transmitted by Aedes (Stegomyia) aegypti and sometimes other Aedes (Stegomyia) spp. mosquitoes. This review serves as an introduction to a World Health Organization-sponsored conference to be held on June 18-19, 2018 in Geneva, titled "From obscurity to urban epidemics: what are the next urban arboviruses?" It is intended to set the stage and fuel discussions of future urban arbovirus threats, how we can predict these risks from known and unknown viruses, and what factors may change these risks over time.
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Affiliation(s)
- Scott C Weaver
- Institute for Human Infections and Immunity and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA.
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60
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Wilder-Smith A, Chang CR, Leong WY. Zika in travellers 1947-2017: a systematic review. J Travel Med 2018; 25:5054972. [PMID: 30016469 DOI: 10.1093/jtm/tay044] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 06/21/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Travellers contributed substantially to the rapid spread of Zika virus (ZIKV). They act as sentinel and may unmask ongoing ZIKV transmission in countries where outbreaks have not yet been reported. Our objectives were to (i) describe the burden of ZIKV infections in international travellers over time; (ii) estimate the proportion of birth defects as a result of maternal ZIKV infection in travellers; (iii) track the extent of sexual transmission; (iv) summarize ZIKV infections in returning travellers as reported by the GeoSentinel network; and (v) identify countries without reports on local ZIKV transmission where travellers served as sentinel. METHODS We performed a systematic review from 1947 to April 2017 on travel-associated ZIKV infections. We also compared published reports on autochthonous ZIKV transmission in Asia with published reports on exportations from travellers in Asia. RESULTS Of 314 papers that fit the inclusion criteria, 61 were eligible for final analysis. There was an exponential increase in the number of reported ZIKV infected travellers from the years 2013 to 2016, which declined in 2017. Amongst pregnant women with ZIKV infection, (5%) resulted in a fetus or infant with ZIKV-associated birth defects. An estimated 1% of the total number of ZIKV cases reported in the USA and Europe were acquired through sexual transmission. Through the GeoSentinel network, five countries (Indonesia, Philippines, Thailand, Vietnam, Cameroon) were identified as sentinel markers where ZIKV was exported despite the absence of reported local transmission. CONCLUSIONS Mobility patterns and travel volumes can help to identify the most likely origin of importation, and also in predicting further propagation. Studies on pregnant returning travellers have contributed to a better understanding of the risk estimates of congenital Zika syndrome/microcephaly as a result of maternal ZIKV infection, and the relative contribution of sexual transmisison.
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Affiliation(s)
- Annelies Wilder-Smith
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.,Department of Global Health and Epidemiology, University of Umea, Umea, Sweden.,London School of Hygiene and Tropical Medicine, Department of Disease Control, London, UK
| | - Chui Rhong Chang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Wei Yee Leong
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
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61
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Dos Passos Cunha M, Ortiz-Baez AS, de Melo Freire CC, de Andrade Zanotto PM. Codon adaptation biases among sylvatic and urban genotypes of Dengue virus type 2. INFECTION GENETICS AND EVOLUTION 2018; 64:207-211. [PMID: 29792991 PMCID: PMC7106335 DOI: 10.1016/j.meegid.2018.05.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 05/09/2018] [Accepted: 05/20/2018] [Indexed: 11/29/2022]
Abstract
Dengue virus (DENV) emerged from the sylvatic environment and colonized urban settings, being sustained in a human-Aedes-human transmission chain, mainly by the bites of females of the anthropophilic species Aedes aegypti. Herein, we sought evidence for fine-tuning in viral codon usage, possibly due to viral adaptation to human transmission. We compared the codon adaptation of DENV serotype 2 (DENV-2) genotypes from urban and sylvatic habitats and tried to correlate the findings with key evolutionary determinants. We found that DENV-2 codons of urban and sylvatic genotypes had a higher CAI to humans than to Ae. aegypti. Remarkably, we found no significant differences in codon adaptation to human between urban American/Asian and sylvatic DENV-2 genotypes. Moreover, CAI values were significantly different, when comparing all genotypes to Ae. aegypti codon preferences, with lower values for sylvatic than urban genotypes. In summary, our findings suggest the presence of a molecular signature among the genotypes that circulate in sylvatic and urban environments, and may help explain the trafficking of DENV-2 strains to an urban cycle. DENV-2 codons of all genotypes had a higher CAI to humans than to Ae. Aegypti. CAI values for the sylvatic genotype were the lowest in humans and Ae. Aegypti. Similar CAI values were recovered for the American/Asian and the Sylvatic genotypes.
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Affiliation(s)
- Marielton Dos Passos Cunha
- Laboratory of Molecular Evolution and Bioinformatics, Department of Microbiology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
| | - Ayda Susana Ortiz-Baez
- Laboratory of Molecular Evolution and Bioinformatics, Department of Microbiology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil; Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogotá, Colombia
| | | | - Paolo Marinho de Andrade Zanotto
- Laboratory of Molecular Evolution and Bioinformatics, Department of Microbiology, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil.
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Dwivedi VD, Tripathi IP, Tripathi RC, Bharadwaj S, Mishra SK. Genomics, proteomics and evolution of dengue virus. Brief Funct Genomics 2018; 16:217-227. [PMID: 28073742 DOI: 10.1093/bfgp/elw040] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The genome of a pathogenic organism possesses a specific order of nucleotides that contains not only information about the synthesis and expression of proteomes, which are required for its growth and survival, but also about its evolution. Inhibition of any particular protein, which is required for the survival of that pathogenic organism, can be used as a potential therapeutic target for the development of effective drugs to treat its infections. In this review, the genomics, proteomics and evolution of dengue virus have been discussed, which will be helpful in better understanding of its origin, growth, survival and evolution, and may contribute toward development of new efficient anti-dengue drugs.
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Pollett S, Melendrez MC, Maljkovic Berry I, Duchêne S, Salje H, Cummings DAT, Jarman RG. Understanding dengue virus evolution to support epidemic surveillance and counter-measure development. INFECTION GENETICS AND EVOLUTION 2018; 62:279-295. [PMID: 29704626 DOI: 10.1016/j.meegid.2018.04.032] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 04/20/2018] [Accepted: 04/24/2018] [Indexed: 11/30/2022]
Abstract
Dengue virus (DENV) causes a profound burden of morbidity and mortality, and its global burden is rising due to the co-circulation of four divergent DENV serotypes in the ecological context of globalization, travel, climate change, urbanization, and expansion of the geographic range of the Ae.aegypti and Ae.albopictus vectors. Understanding DENV evolution offers valuable opportunities to enhance surveillance and response to DENV epidemics via advances in RNA virus sequencing, bioinformatics, phylogenetic and other computational biology methods. Here we provide a scoping overview of the evolution and molecular epidemiology of DENV and the range of ways that evolutionary analyses can be applied as a public health tool against this arboviral pathogen.
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Affiliation(s)
- S Pollett
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA; Marie Bashir Institute, University of Sydney, NSW, Australia; Institute for Global Health Sciences, University of California at San Francisco, CA, USA.
| | - M C Melendrez
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - I Maljkovic Berry
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - S Duchêne
- Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Australia
| | - H Salje
- Institut Pasteur, Paris, France; Johns Hopkins School of Public Health, Baltimore, MD, USA
| | - D A T Cummings
- Johns Hopkins School of Public Health, Baltimore, MD, USA; University of Florida, FL, USA
| | - R G Jarman
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, USA
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64
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Salles TS, da Encarnação Sá-Guimarães T, de Alvarenga ESL, Guimarães-Ribeiro V, de Meneses MDF, de Castro-Salles PF, dos Santos CR, do Amaral Melo AC, Soares MR, Ferreira DF, Moreira MF. History, epidemiology and diagnostics of dengue in the American and Brazilian contexts: a review. Parasit Vectors 2018; 11:264. [PMID: 29690895 PMCID: PMC5937836 DOI: 10.1186/s13071-018-2830-8] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 04/03/2018] [Indexed: 12/02/2022] Open
Abstract
Dengue virus (DENV), an arbovirus transmitted by mosquitoes, has become a major threat to American human life, reaching approximately 23 million cases from 1980 to 2017. Brazil is among the countries most affected by this terrible viral disease, with 13.6 million cases. DENV has four different serotypes, DENV1-4, which show a broad clinical spectrum. Dengue creates a staggering epidemiological and economic burden for endemic countries. Without a specific therapy and with a commercial vaccine that presents some problems relative to its full effectiveness, initiatives to improve vector control strategies, early disease diagnostics and the development of vaccines and antiviral drugs are priorities. In this study, we present the probable origins of dengue in America and the trajectories of its spread. Overall, dengue diagnostics are costly, making the monitoring of dengue epidemiology more difficult and affecting physicians' therapeutic decisions regarding dengue patients, especially in developing countries. This review also highlights some recent and important findings regarding dengue in Brazil and the Americas. We also summarize the existing DENV polymerase chain reaction (PCR) diagnostic tests to provide an improved reference since these tests are useful and accurate at discriminating DENV from other flaviviruses that co-circulate in the Americas. Additionally, these DENV PCR assays ensure virus serotyping, enabling epidemiologic monitoring.
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Affiliation(s)
- Tiago Souza Salles
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-909 Brazil
- Departamento de Virologia, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-590 Brazil
| | | | - Evelyn Seam Lima de Alvarenga
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-909 Brazil
| | - Victor Guimarães-Ribeiro
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-909 Brazil
| | | | | | - Carlucio Rocha dos Santos
- Universidade Federal do Rio de Janeiro, Instituto de Bioquímica Médica, Rio de Janeiro, RJ 21941-902 Brazil
| | - Ana Claudia do Amaral Melo
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-909 Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, 21941-902 RJ Brazil
| | - Marcia Regina Soares
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-909 Brazil
| | - Davis Fernandes Ferreira
- Departamento de Virologia, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ 21941-590 Brazil
- Department of Molecular and Structural Biochemistry, North Carolina State University, 120 W Broughton Dr, Raleigh, NC USA
| | - Monica Ferreira Moreira
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-909 Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Rio de Janeiro, 21941-902 RJ Brazil
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65
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Stabell AC, Meyerson NR, Gullberg RC, Gilchrist AR, Webb KJ, Old WM, Perera R, Sawyer SL. Dengue viruses cleave STING in humans but not in nonhuman primates, their presumed natural reservoir. eLife 2018; 7:31919. [PMID: 29557779 PMCID: PMC5860865 DOI: 10.7554/elife.31919] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 02/08/2018] [Indexed: 12/25/2022] Open
Abstract
Human dengue viruses emerged from primate reservoirs, yet paradoxically dengue does not reach high titers in primate models. This presents a unique opportunity to examine the genetics of spillover versus reservoir hosts. The dengue virus 2 (DENV2) - encoded protease cleaves human STING, reducing type I interferon production and boosting viral titers in humans. We find that both human and sylvatic (reservoir) dengue viruses universally cleave human STING, but not the STING of primates implicated as reservoir species. The special ability of dengue to cleave STING is thus specific to humans and a few closely related ape species. Conversion of residues 78/79 to the human-encoded 'RG' renders all primate (and mouse) STINGs sensitive to viral cleavage. Dengue viruses may have evolved to increase viral titers in the dense and vast human population, while maintaining decreased titers and pathogenicity in the more rare animals that serve as their sustaining reservoir in nature.
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Affiliation(s)
- Alex C Stabell
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
| | - Nicholas R Meyerson
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
| | - Rebekah C Gullberg
- Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, United States
| | - Alison R Gilchrist
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
| | - Kristofor J Webb
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
| | - William M Old
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
| | - Rushika Perera
- Arthropod-borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, United States
| | - Sara L Sawyer
- Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, United States
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66
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Liu W, Pickering P, Duchêne S, Holmes EC, Aaskov JG. Highly Divergent Dengue Virus Type 2 in Traveler Returning from Borneo to Australia. Emerg Infect Dis 2018; 22:2146-2148. [PMID: 27869598 PMCID: PMC5189156 DOI: 10.3201/eid2212.160813] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Dengue virus type 2 was isolated from a tourist who returned from Borneo to Australia. Phylogenetic analysis identified this virus as highly divergent and occupying a basal phylogenetic position relative to all known human and sylvatic dengue virus type 2 strains and the most divergent lineage not assigned to a new serotype.
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67
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Luo H, Winkelmann ER, Fernandez-Salas I, Li L, Mayer SV, Danis-Lozano R, Sanchez-Casas RM, Vasilakis N, Tesh R, Barrett AD, Weaver SC, Wang T. Zika, dengue and yellow fever viruses induce differential anti-viral immune responses in human monocytic and first trimester trophoblast cells. Antiviral Res 2018; 151:55-62. [PMID: 29331320 DOI: 10.1016/j.antiviral.2018.01.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/02/2018] [Accepted: 01/06/2018] [Indexed: 10/18/2022]
Abstract
Zika virus (ZIKV) is a mosquito-borne flavivirus associated with severe neonatal birth defects, but the causative mechanism is incompletely understood. ZIKV shares sequence homology and early clinical manifestations with yellow fever virus (YFV) and dengue virus (DENV) and are all transmitted in urban cycles by the same species of mosquitoes. However, YFV and DENV have been rarely reported to cause congenital diseases. Here, we compared infection with a contemporary ZIKV strain (FSS13025) to YFV17D and DENV-4 in human monocytic cells (THP-1) and first-trimester trophoblasts (HTR-8). Our results suggest that all three viruses have similar tropisms for both cells. Nevertheless, ZIKV induced strong type 1 IFN and inflammatory cytokine and chemokine production in monocytes and peripheral blood mononuclear cells. Furthermore, ZIKV infection in trophoblasts induced lower IFN and higher inflammatory immune responses. Placental inflammation is known to contribute to the risk of brain damage in preterm newborns. Inhibition of toll-like receptor (TLR)3 and TLR8 each abrogated the inflammatory cytokine responses in ZIKV-infected trophoblasts. Our findings identify a potential link between maternal immune activation and ZIKV-induced congenital diseases, and a potential therapeutic strategy that targets TLR-mediated inflammatory responses in the placenta.
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Affiliation(s)
- Huanle Luo
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Evandro R Winkelmann
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | | | - Li Li
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Sandra V Mayer
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Rogelio Danis-Lozano
- Centro Regional de Salud Pública, Instituto Nacional de Salud Pública, Tapachula, Mexico
| | | | - Nikos Vasilakis
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA; Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Robert Tesh
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA; Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Alan D Barrett
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA; Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Scott C Weaver
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA; Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA
| | - Tian Wang
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA; Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA; Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, USA.
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68
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Braack L, Gouveia de Almeida AP, Cornel AJ, Swanepoel R, de Jager C. Mosquito-borne arboviruses of African origin: review of key viruses and vectors. Parasit Vectors 2018; 11:29. [PMID: 29316963 PMCID: PMC5759361 DOI: 10.1186/s13071-017-2559-9] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 11/27/2017] [Indexed: 12/28/2022] Open
Abstract
Key aspects of 36 mosquito-borne arboviruses indigenous to Africa are summarized, including lesser or poorly-known viruses which, like Zika, may have the potential to escape current sylvatic cycling to achieve greater geographical distribution and medical importance. Major vectors are indicated as well as reservoir hosts, where known. A series of current and future risk factors is addressed. It is apparent that Africa has been the source of most of the major mosquito-borne viruses of medical importance that currently constitute serious global public health threats, but that there are several other viruses with potential for international challenge. The conclusion reached is that increased human population growth in decades ahead coupled with increased international travel and trade is likely to sustain and increase the threat of further geographical spread of current and new arboviral disease.
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Affiliation(s)
- Leo Braack
- School of Health Systems & Public Health, University of Pretoria, Pretoria, South Africa.
| | - A Paulo Gouveia de Almeida
- Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal.,Department of Medical Virology, University of Pretoria, Pretoria, South Africa
| | - Anthony J Cornel
- School of Health Systems & Public Health, University of Pretoria, Pretoria, South Africa.,Department of Entomology and Nematology, Mosquito Control Research Laboratory, Kearney Agricultural Center, UC Davis, Parlier, CA, USA
| | - Robert Swanepoel
- Department of Veterinary Tropical Diseases, University of Pretoria, Pretoria, South Africa
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69
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Higuera A, Ramírez JD. The Colombian peace deal and its impact on the evolution of tropical diseases agents. INFECTION GENETICS AND EVOLUTION 2017; 57:145-150. [PMID: 29180270 DOI: 10.1016/j.meegid.2017.11.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/22/2017] [Accepted: 11/24/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Adriana Higuera
- Universidad del Rosario, Facultad de Ciencias Naturales y Matemáticas, Programa de Biología, Grupo de Investigaciones Microbiológicas - UR (GIMUR), Bogotá, Colombia
| | - Juan David Ramírez
- Universidad del Rosario, Facultad de Ciencias Naturales y Matemáticas, Programa de Biología, Grupo de Investigaciones Microbiológicas - UR (GIMUR), Bogotá, Colombia.
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70
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Pu J, Wu S, Xie H, Li Y, Yang Z, Wu X, Huang X. miR-146a Inhibits dengue-virus-induced autophagy by targeting TRAF6. Arch Virol 2017; 162:3645-3659. [PMID: 28825144 PMCID: PMC7086938 DOI: 10.1007/s00705-017-3516-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 07/18/2017] [Indexed: 12/28/2022]
Abstract
During dengue virus (DENV) infection, the virus manipulates different cellular pathways to assure productive replication, including autophagy. However, it remains unclear how this autophagic process is regulated. Here, we have demonstrated a novel role for the microRNA miR-146a in negatively regulating the cellular autophagic pathway in DENV-infected A549 cells and THP-1 cells. Overexpression of miR-146a significantly blocked DENV2-induced autophagy, and LNA-mediated inhibition of miR-146a counteracted these effects. Moreover, co-overexpression of TRAF6, a target of miR-146a, significantly reversed the inhibitory effect of miR-146a on autophagy. Notably, treatment with recombinant IFN-β fully restored the autophagic activity in TRAF6-silenced cells. Furthermore, our data showed that, in DENV2-infected A549 cells, autophagy promoted a pro-inflammatory response to significantly increase TNF-α and IL-6 production. Taken together, our results define a novel role for miR-146a as a negative regulator of DENV-induced autophagy and identify TRAF6 as a key target of this microRNA in modulating the DENV-autophagy interaction.
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Affiliation(s)
- Jieying Pu
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China
| | - Siyu Wu
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China
- Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Heping Xie
- Department of Traditional Chinese Medicine, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yuye Li
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou, 510080, China
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China
| | - Zhicong Yang
- Guangzhou Center for Disease Control and Prevention, 1 Qide Road, Guangzhou, 510440, China
| | - Xinwei Wu
- Guangzhou Center for Disease Control and Prevention, 1 Qide Road, Guangzhou, 510440, China.
| | - Xi Huang
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan 2nd Road, Guangzhou, 510080, China.
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.
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71
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Kenney JL, Romo H, Duggal NK, Tzeng WP, Burkhalter KL, Brault AC, Savage HM. Transmission Incompetence of Culex quinquefasciatus and Culex pipiens pipiens from North America for Zika Virus. Am J Trop Med Hyg 2017; 96:1235-1240. [PMID: 28500817 PMCID: PMC5417222 DOI: 10.4269/ajtmh.16-0865] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
AbstractIn late 2014, Zika virus (ZIKV; Flaviviridae, Flavivirus) emerged as a significant arboviral disease threat in the Western hemisphere. Aedes aegypti and Aedes albopictus have been considered the principal vectors of ZIKV in the New World due to viral isolation frequency and vector competence assessments. Limited reports of Culex transmission potential have highlighted the need for additional vector competence assessments of North American Culex species. Accordingly, North American Culex pipiens and Culex quinquefasciatus were orally exposed and intrathoracically inoculated with the African prototype ZIKV strain and currently circulating Asian lineage ZIKV strains to assess infection, dissemination, and transmission potential. Results indicated that these two North American Culex mosquito species were highly refractory to oral infection with no dissemination or transmission observed with any ZIKV strains assessed. Furthermore, both Culex mosquito species intrathoracically inoculated with either Asian or African lineage ZIKVs failed to expectorate virus in saliva. These in vivo results were further supported by the observation that multiple mosquito cell lines of Culex species origin demonstrated significant growth restriction of ZIKV strains compared with Aedes-derived cell lines. In summation, no evidence for the potential of Cx. pipiens or Cx. quinquefasciatus to serve as a competent vector for ZIKV transmission in North America was observed.
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Affiliation(s)
- Joan L Kenney
- Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Hannah Romo
- Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Nisha K Duggal
- Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Wen-Pin Tzeng
- Centers for Disease Control and Prevention, Fort Collins, Colorado
| | | | - Aaron C Brault
- Centers for Disease Control and Prevention, Fort Collins, Colorado
| | - Harry M Savage
- Centers for Disease Control and Prevention, Fort Collins, Colorado
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72
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Complete Genome Sequence of a Highly Divergent Dengue Virus Type 2 Strain, Imported into Australia from Sabah, Malaysia. GENOME ANNOUNCEMENTS 2017; 5:5/29/e00546-17. [PMID: 28729258 PMCID: PMC5522925 DOI: 10.1128/genomea.00546-17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In 2015, a female patient returning to Australia from Sabah, Malaysia, was diagnosed with a suspected sylvatic dengue virus type 2 (DENV-2) infection, becoming the second case of imported highly divergent dengue virus infection recorded in Australia. We describe here the complete genome sequencing of the DENV-2 strain isolated from this patient.
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73
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Rodhain F. [Arboviruses also have an American dream]. ACTA ACUST UNITED AC 2017; 110:147-159. [PMID: 28509947 DOI: 10.1007/s13149-017-0557-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 01/04/2017] [Indexed: 01/18/2023]
Abstract
Some arboviruses that originated in the Old World have been introduced by humans into the American continent. The first of them was the yellow fever virus, coming from the West African coast with slaves in the 17th-19th centuries, followed by dengue viruses, which were always prevalent within the Americas. Next was theWest Nile virus, introduced in New York in 1999, that spread in only a few years over the whole continent. Then, Chikungunya virus arrived on Saint Martin Island in 2013 after its outbreak in Polynesia; it is now widespread in the Caribbean Islands and on the American continent from the United States to Brazil. Finally, Zika virus, already active in Asia and in the South Pacific region, was introduced in Brazil and spread between the southern part of United States and south Brazil. These unexpected emergences are the consequence of the generalization of transoceanic trading; so, it is humans who are truly responsible for such transportation of viruses from the African and Asian continents. The mechanisms of virus establishment in unusual ecosystems have to be analyzed in order to understand the conditions for the circulation of the viruses, which supposes an adaptation to new hosts and vectors that are sometimes local species (like Culex vectors of West Nile virus) but mainly previously introduced mosquitoes (like Aedes aegypti and/or Aedes albopictus). Over time, all these vectors developed a strong anthropophily and, most of them, a remarkable adaptation to urban environment; hence, these arboviruses can disseminate both in rural and urban context. This type of arboviral emergences will certainly continue in the following years and we must imperatively develop preventive strategies by detecting virus mutations with capacity for emergence, enhancing the sensibility and rapidity of epidemiological surveillance, and becoming ready to face such events that cause a truly international health crisis.
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Affiliation(s)
- F Rodhain
- Institut Pasteur, 25 rue du Docteur-Roux, 75724, Paris cedex 15, France.
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74
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Hu TS, Zhang HL, Feng Y, Fan JH, Tang T, Liu YH, Zhang L, Yin XX, Chen G, Li HC, Zu J, Li HB, Li YY, Yu J, Zhang FQ, Fan QS. Epidemiological and molecular characteristics of emergent dengue virus in Yunnan Province near the China-Myanmar-Laos border, 2013-2015. BMC Infect Dis 2017; 17:331. [PMID: 28482813 PMCID: PMC5422898 DOI: 10.1186/s12879-017-2401-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 04/12/2017] [Indexed: 11/18/2022] Open
Abstract
Background Yunnan Province is located in southwestern China and neighbors the Southeast Asian countries, all of which are dengue-endemic areas. In 2000–2013, sporadic imported cases of dengue fever (DF) were reported almost annually in Yunnan Province. During 2013–2015, we confirmed that a large-scale indigenous DF outbreak emerged in cities of Yunnan Province near the China-Myanmar-Laos border. Methods Epidemiological characteristics of DF in Yunnan Province during 2013–2015 were evaluated by retrospective analysis. A total of 232 dengue virus (DENV)-positive sera were randomly collected for sequence analysis of the capsid/premembrane region of DENV from patients with DF in Yunnan Province. The envelope gene of DENV isolates was also amplified and sequenced. Phylogenetic analyses were performed using the neighbor-joining method with the Tajima-Nei model. Results Phylogenetically, all DENV-positive samples could be classified into DENV-1 genotype I and DENV-2 Asian I genotype during 2013–2015 and DENV-4 genotype I in 2015 from Ruili City; and DENV-3 genotype II in 2013 and DENV-2 Cosmopolitan genotype in 2015 from Xishuangbanna Prefecture. Conclusions Our results indicated that imported DF from patients from Laos and Myanmar was the primary cause of the DF epidemic in Yunnan Province. Additionally, DENV strains of all four serotypes were identified in indigenous cases in Yunnan Province during the same time period, while the dengue epidemic pattern observed in southwestern Yunnan showed characteristics of a hypoendemic nature: circulation of DENV-1 and DENV-2 over consecutive years. Electronic supplementary material The online version of this article (doi:10.1186/s12879-017-2401-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ting-Song Hu
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China.,The Postdoctoral Programme of Kunming General Hospital, Chengdu Military Region, Kunming, People's Republic of China
| | - Hai-Lin Zhang
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China.,Yunnan Institute of Endemic Diseases Control and Prevention, Dali, Yunnan, People's Republic of China
| | - Yun Feng
- Yunnan Institute of Endemic Diseases Control and Prevention, Dali, Yunnan, People's Republic of China
| | - Jian-Hua Fan
- Xishuangbanna Center for Disease Control and Prevention, Jinghong, Yunnan, People's Republic of China
| | - Tian Tang
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China
| | - Yong-Hua Liu
- Ruili Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Liu Zhang
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China
| | - Xiao-Xiong Yin
- Ruili Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Gang Chen
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China
| | - Hua-Chang Li
- Lincang Center for Disease Control and Prevention, Lincang, Yunnan, People's Republic of China
| | - Jin Zu
- Xishuangbanna Center for Disease Control and Prevention, Jinghong, Yunnan, People's Republic of China
| | - Hong-Bin Li
- Xishuangbanna Center for Disease Control and Prevention, Jinghong, Yunnan, People's Republic of China
| | - Yuan-Yuan Li
- Xishuangbanna Center for Disease Control and Prevention, Jinghong, Yunnan, People's Republic of China
| | - Jing Yu
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China
| | - Fu-Qiang Zhang
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China.
| | - Quan-Shui Fan
- Center for Disease Control and Prevention, Chengdu Military Region, 168 Daguan Road, Kunming, 650032, People's Republic of China.
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75
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Luang-Suarkia D, Ernst T, Alpers MP, Garruto R, Smith D, Imrie A. Serological evidence for transmission of multiple dengue virus serotypes in Papua New Guinea and West Papua prior to 1963. PLoS Negl Trop Dis 2017; 11:e0005488. [PMID: 28437465 PMCID: PMC5426789 DOI: 10.1371/journal.pntd.0005488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 05/11/2017] [Accepted: 03/13/2017] [Indexed: 11/18/2022] Open
Abstract
Little is known about the natural history of dengue in Papua New Guinea (PNG). We assessed dengue virus (DENV)-specific neutralizing antibody profiles in serum samples collected from northern and southern coastal areas and the highland region of New Guinea between 1959 and 1963. Neutralizing antibodies were demonstrated in sera from the northern coast of New Guinea: from Sabron in Dutch New Guinea (now known as West Papua) and from four villages in East Sepik in what is now PNG. Previous monotypic infection with DENV-1, DENV-2, and DENV-4 was identified, with a predominance of anti-DENV-2 neutralizing antibody. The majority of positive sera demonstrated evidence of multiple previous DENV infections and neutralizing activity against all four serotypes was detected, with anti-DENV-2 responses being most frequent and of greatest magnitude. No evidence of previous DENV infection was identified in the Asmat villages of the southern coast and a single anti-DENV-positive sample was identified in the Eastern Highlands of PNG. These findings indicate that multiple DENV serotypes circulated along the northern coast of New Guinea at different times in the decades prior to 1963 and support the notion that dengue has been a significant yet neglected tropical infection in PNG for many decades. Dengue is a mosquito-borne disease caused by infection with any of the four dengue virus serotypes (DENV-1 –DENV-4), which are transmitted in more than 100 tropical and subtropical countries. The current global dengue burden, and dengue mortality, is greatest in the southeast Asian and western Pacific region where more than 70% of people at risk of infection reside. All four DENV serotypes have been reported to circulate in this region and each DENV serotype has been associated with high rates of morbidity and mortality. Sequential infection with heterologous DENV serotypes is associated with more severe dengue disease (previously known as dengue hemorrhagic fever and dengue shock syndrome) and co-circulation of multiple DENV serotypes is frequently observed in endemic countries. Substantial variation in local capacity for systematic surveillance and reporting among countries in the region means dengue burden is likely underestimated. We tested archival serum samples collected more than 50 years ago in Papua New Guinea in order to begin to assess the true burden of dengue, in a country where severe dengue has not been reported and DF is rare. Serological evidence for previous monotypic and multitypic DENV infection in adults living along the northeastern coast of PNG between 1959–1963 indicates dengue was transmitted prior to this period. The contribution of dengue to acute febrile illness in PNG, and the reasons for the apparent lack of severe disease, should be investigated.
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Affiliation(s)
- Dagwin Luang-Suarkia
- School of Biomedical Sciences, University of Western Australia, Nedlands, Western Australia, Australia
- Virology Laboratory, Papua New Guinea Institute of Medical Research, Goroka, Papua New Guinea
| | - Timo Ernst
- School of Biomedical Sciences, University of Western Australia, Nedlands, Western Australia, Australia
| | | | - Ralph Garruto
- Binghamton University, Binghamton, New York, United States of America
| | - David Smith
- School of Biomedical Sciences, University of Western Australia, Nedlands, Western Australia, Australia
- Pathwest Laboratory Medicine WA, Nedlands, Western Australia, Australia
| | - Allison Imrie
- School of Biomedical Sciences, University of Western Australia, Nedlands, Western Australia, Australia
- Pathwest Laboratory Medicine WA, Nedlands, Western Australia, Australia
- * E-mail:
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76
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Mayer SV, Tesh RB, Vasilakis N. The emergence of arthropod-borne viral diseases: A global prospective on dengue, chikungunya and zika fevers. Acta Trop 2017; 166:155-163. [PMID: 27876643 PMCID: PMC5203945 DOI: 10.1016/j.actatropica.2016.11.020] [Citation(s) in RCA: 247] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 10/27/2016] [Accepted: 11/16/2016] [Indexed: 01/02/2023]
Abstract
Arthropod-borne viruses (arboviruses) present a substantial threat to human and animal health worldwide. Arboviruses can cause a variety of clinical presentations that range from mild to life threatening symptoms. Many arboviruses are present in nature through two distinct cycles, the urban and sylvatic cycle that are maintained in complex biological cycles. In this review we briefly discuss the factors driving the emergence of arboviruses, such as the anthropogenic aspects of unrestrained human population growth, economic expansion and globalization. Also the important aspects of viruses and vectors in the occurrence of arboviruses epidemics. The focus of this review will be on dengue, zika and chikungunya viruses, particularly because these viruses are currently causing a negative impact on public health and economic damage around the world.
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Affiliation(s)
- Sandra V Mayer
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, TX 77555-0609, USA
| | - Robert B Tesh
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, TX 77555-0609, USA; Center for Biodefense and Emerging Infectious Diseases, UTMB, Galveston, USA; Center for Tropical Diseases, UTMB, Galveston, TX 77555-0609, USA; Institute for Human Infections and Immunity, UTMB, Galveston, TX 77555-0610, USA
| | - Nikos Vasilakis
- Department of Pathology, University of Texas Medical Branch (UTMB), Galveston, TX 77555-0609, USA; Center for Biodefense and Emerging Infectious Diseases, UTMB, Galveston, USA; Center for Tropical Diseases, UTMB, Galveston, TX 77555-0609, USA; Institute for Human Infections and Immunity, UTMB, Galveston, TX 77555-0610, USA.
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77
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Frederico ÉHFF, Cardoso ALBD, Moreira-Marconi E, de Sá-Caputo DDC, Guimarães CAS, Dionello CDF, Morel DS, Paineiras-Domingos LL, de Souza PL, Brandão-Sobrinho-Neto S, Carvalho-Lima RP, Guedes-Aguiar EDO, Costa-Cavalcanti RG, Kutter CR, Bernardo-Filho M. ANTI-VIRAL EFFECTS OF MEDICINAL PLANTS IN THE MANAGEMENT OF DENGUE: A SYSTEMATIC REVIEW. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES : AJTCAM 2017; 14:33-40. [PMID: 28740942 PMCID: PMC5514443 DOI: 10.21010/ajtcam.v14i4s.5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
BACKGROUND Dengue is considered as an important arboviral disease. Safe, low-cost, and effective drugs that possess inhibitory activity against dengue virus (DENV) are mostly needed to try to combat the dengue infection worldwide. Medicinal plants have been considered as an important alternative to manage several diseases, such as dengue. As authors have demonstrated the antiviral effect of medicinal plants against DENV, the aim of this study was to review systematically the published research concerning the use of medicinal plants in the management of dengue using the PubMed database. MATERIALS AND METHODS Search and selection of publications were made using the PubMed database following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA statement). RESULTS Six publications met the inclusion criteria and were included in the final selection after thorough analysis. CONCLUSION It is suggested that medicinal plants' products could be used as potential anti-DENV agents.
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Affiliation(s)
- Éric Heleno Freira Ferreira Frederico
- Programa de Pós-graduação em Biociências, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
- Corresponding Author E-mail Address:
| | - André Luiz Bandeira Dionísio Cardoso
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Eloá Moreira-Marconi
- Programa de Pós-Graduação em Fisiopatologia Clínica e Experimental, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Danúbia da Cunha de Sá-Caputo
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Carlos Alberto Sampaio Guimarães
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Carla da Fontoura Dionello
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Danielle Soares Morel
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Laisa Liane Paineiras-Domingos
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Patricia Lopes de Souza
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Samuel Brandão-Sobrinho-Neto
- Mestrado Profissional em Saúde, Medicina Laboratorial e Tecnologia Forense, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Av. Marechal Rondon, Rio de Janeiro, 20950-003, RJ, Brasil
| | - Rafaelle Pacheco Carvalho-Lima
- Mestrado Profissional em Saúde, Medicina Laboratorial e Tecnologia Forense, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Av. Marechal Rondon, Rio de Janeiro, 20950-003, RJ, Brasil
| | - Eliane de Oliveira Guedes-Aguiar
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Rebeca Graça Costa-Cavalcanti
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
| | - Cristiane Ribeiro Kutter
- Mestrado Profissional em Saúde, Medicina Laboratorial e Tecnologia Forense, Universidade do Estado do Rio de Janeiro, Instituto de Biologia Roberto Alcantara Gomes, Av. Marechal Rondon, Rio de Janeiro, 20950-003, RJ, Brasil
| | - Mario Bernardo-Filho
- Laboratório de Vibrações Mecânicas e Práticas Integrativas e Complementares, Departamento de Biofísica e Biometria, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, 20551-030, RJ, Brasil
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78
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Pu J, He L, Xie H, Wu S, Li Y, Zhang P, Yang Z, Huang X. Antiviral activity of Carbenoxolone disodium against dengue virus infection. J Med Virol 2016; 89:571-581. [PMID: 27155198 PMCID: PMC7167157 DOI: 10.1002/jmv.24571] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2016] [Indexed: 12/14/2022]
Abstract
As one of the most important mosquito‐borne viral diseases, dengue infection is now becoming a global concern due to its rapid spread and rise in incidence. Currently, there is no approved vaccine or effective antiviral drug for dengue virus (DENV) infection. Glycyrrhetinic acid (GNa) and its related derivatives have been reported to inhibit a broad spectrum of viruses. However, it is unknown whether Carbenoxolone disodium (CBX), one of the GNa derivatives, affects DENV infection. Here, we found that the production of infectious DENV particles was significantly decreased by CBX treatment in DENV‐permissive cells, while the viral RNA and viral protein synthesis were not affected. Moreover, results from time‐of‐addition study showed that the inhibitory effect of CBX on DENV was exhibited by targeting the virus itself, not the host cells. Directly incubating DENV with CBX resulted in a remarkable reduction of virus titer and virus infectivity. Furthermore, DENV RNA from progeny virions in the supernatants was significantly decreased by CBX treatment in a dose‐dependent manner. Taken together, these data indicate that the antiviral activity of CBX against DENV may be mainly due to a virucidal effect exerted by the compound itself. Our work, for the first time, demonstrates that CBX has antiviral activity against DENV infection, providing useful information for development of potential therapeutic interventions against dengue. J. Med. Virol. 89:571–581, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jieying Pu
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China
| | - Li He
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China.,The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
| | - Heping Xie
- Department of Traditional Chinese Medicine, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Siyu Wu
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China
| | - Yuye Li
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China
| | - Ping Zhang
- Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China
| | - Zhicong Yang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - Xi Huang
- Program of Immunology, Affiliated Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Diseases Control (Sun Yat-sen University), Ministry of Education, Guangzhou, China
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79
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Abstract
Zika virus (ZIKV) originated and continues to circulate in a sylvatic transmission cycle between non-human primate hosts and arboreal mosquitoes in tropical Africa. Recently ZIKV invaded the Americas, where it poses a threat to human health, especially to pregnant women and their infants. Here we examine the risk that ZIKV will establish a sylvatic cycle in the Americas, focusing on Brazil. We review the natural history of sylvatic ZIKV and present a mathematical dynamic transmission model to assess the probability of establishment of a sylvatic ZIKV transmission cycle in non-human primates and/or other mammals and arboreal mosquito vectors in Brazil. Brazil is home to multiple species of primates and mosquitoes potentially capable of ZIKV transmission, though direct assessment of host competence (ability to mount viremia sufficient to infect a feeding mosquito) and vector competence (ability to become infected with ZIKV and disseminate and transmit upon subsequent feedings) of New World species is lacking. Modeling reveals a high probability of establishment of sylvatic ZIKV across a large range of biologically plausible parameters. Probability of establishment is dependent on host and vector population sizes, host birthrates, and ZIKV force of infection. Research on the host competence of New World monkeys or other small mammals to ZIKV, on vector competence of New World Aedes, Sabethes, and Haemagogus mosquitoes for ZIKV, and on the geographic range of potential New World hosts and vectors is urgently needed. A sylvatic cycle of ZIKV would make future elimination efforts in the Americas practically impossible, and paints a dire picture for the epidemiology of ZIKV and our ability to end the ongoing outbreak of congenital Zika syndrome.
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80
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Martina BE, Barzon L, Pijlman GP, de la Fuente J, Rizzoli A, Wammes LJ, Takken W, van Rij RP, Papa A. Human to human transmission of arthropod-borne pathogens. Curr Opin Virol 2016; 22:13-21. [PMID: 27915056 DOI: 10.1016/j.coviro.2016.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 11/07/2016] [Accepted: 11/11/2016] [Indexed: 12/17/2022]
Abstract
Human-to-human (H2H) transmitted arthropod-borne pathogens are a growing burden worldwide, with malaria and dengue being the most common mosquito-borne H2H transmitted diseases. The ability of vectors to get infected by humans during a blood meal to further propel an epidemic depends on complex interactions between pathogens, vectors and humans, in which human interventions and demographic and environmental conditions play a significant role. Herein, we discuss the distal and proximal drivers affecting H2H vector-borne pathogen transmission and identify knowledge gaps and future perspectives.
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Affiliation(s)
- Byron E Martina
- Viroscience Laboratory, Erasmus Medical Centre, Rotterdam, The Netherlands; Artemis One Health Research Institute, Utrecht, The Netherlands
| | - Luisa Barzon
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Gorben P Pijlman
- Laboratory of Virology, Wageningen University, Wageningen, The Netherlands
| | - José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM, Ciudad Real, Spain; Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, USA
| | - Annapaola Rizzoli
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all'Adige (Trento), Italy
| | - Linda J Wammes
- Department of Microbiology & Infectious Diseases, Erasmus MC, Rotterdam, The Netherlands
| | - Willem Takken
- Laboratory of Entomology, Wageningen University, Wageningen, The Netherlands
| | - Ronald P van Rij
- Department of Medical Microbiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Anna Papa
- Department of Microbiology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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81
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Patterson J, Sammon M, Garg M. Dengue, Zika and Chikungunya: Emerging Arboviruses in the New World. West J Emerg Med 2016; 17:671-679. [PMID: 27833670 PMCID: PMC5102589 DOI: 10.5811/westjem.2016.9.30904] [Citation(s) in RCA: 191] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/19/2016] [Accepted: 09/08/2016] [Indexed: 11/15/2022] Open
Abstract
The arboviruses that cause dengue, chikungunya, and Zika illnesses have rapidly expanded across the globe in recent years, with large-scale outbreaks occurring in Western Hemisphere territories in close proximity to the United States (U.S.). In March 2016, the Centers for Disease Control and Protection (CDC) expanded its vector surveillance maps for A. aegypti and A. albopictus, the mosquito vectors for these arboviruses. They have now been shown to inhabit a larger portion of the U.S., including the heavily populated northeast corridor. Emergency physicians need to further familiarize themselves with these diseases, which have classically been considered only in returning travelers but may soon be encountered in the U.S. even in the absence of travel. In this paper, we discuss the presentation and treatment of dengue, Zika, and chikungunya, as well as special challenges presented to the emergency physician in evaluating a patient with a suspected arbovirus infection.
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Affiliation(s)
- Jessica Patterson
- Temple University Hospital and School of Medicine, Department of Emergency Medicine, Philadelphia, Pennsylvania
| | - Maura Sammon
- Temple University Hospital and School of Medicine, Department of Emergency Medicine, Philadelphia, Pennsylvania
| | - Manish Garg
- Temple University Hospital and School of Medicine, Department of Emergency Medicine, Philadelphia, Pennsylvania
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82
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Tree MO, McKellar DR, Kieft KJ, Watson AM, Ryman KD, Conway MJ. Insect-specific flavivirus infection is restricted by innate immunity in the vertebrate host. Virology 2016; 497:81-91. [DOI: 10.1016/j.virol.2016.07.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/18/2016] [Accepted: 07/05/2016] [Indexed: 11/15/2022]
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83
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Tabachnick WJ. Climate Change and the Arboviruses: Lessons from the Evolution of the Dengue and Yellow Fever Viruses. Annu Rev Virol 2016; 3:125-145. [DOI: 10.1146/annurev-virology-110615-035630] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Walter J. Tabachnick
- Florida Medical Entomology Laboratory, Department of Entomology and Nematology, University of Florida, Vero Beach, Florida 32962;
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84
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Hu Y, Hu Y, Sun L, Wong J, Wang M. Antiviral effects of liposome-encapsulated PolyICLC against Dengue virus in a mouse model. Biochem Biophys Res Commun 2016; 478:913-8. [PMID: 27524246 DOI: 10.1016/j.bbrc.2016.08.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/29/2016] [Accepted: 08/08/2016] [Indexed: 11/29/2022]
Abstract
This study presents the first investigation of the antiviral effects of the liposome-encapsulated PolyICLC (LE-PolyICLC) on Dengue virus (DENV) in a mouse model. In vivo efficacy studies showed that LE-PolyICLC acted to increase antiviral mechanisms mainly through promoting cytokine expression associated with innate immunity, such as IFN-γ. In addition, the pro-inflammatory cytokine TNF-α was also increased, while IL-6 level was decreased in serum. The titers of total antibodies against DENV2 in mice were also elevated. Administration of LE-PolyICLC not only alleviated the loss of body weight, degree of morbidity, and pathological damage in brains, but also reduced the viral titers and expression of viral E protein in the brain. Notably, the effectiveness of LE-PolyICLC was better than PolyICLC on the basis of the data presented in this study. These results, therefore, set a foundation for further development of LE-PolyICLC as an attractive candidate of antiviral agents to be used in both prophylactic and therapeutic settings in DENV diseases.
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Affiliation(s)
- Yongxin Hu
- Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yanxin Hu
- Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Lunquan Sun
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha 410078, China.
| | - Jonathan Wong
- Biotechnology, DRDC, Box 4000, Station Main, Medicine Hat, Alta T1A 8K6, Canada.
| | - Ming Wang
- Key Laboratory of Animal Epidemiology and Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; Key Laboratory of Veterinary Bioproduction and Chemical Medicine of the Minstry of Agriculture, Zhongmu Institutes of China Animal Husbandry Industry Co., Ltd, No. 156 Beiqing Road, Haidian District, Beijing 100095, China.
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85
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Importance of mosquito "quasispecies" in selecting an epidemic arthropod-borne virus. Sci Rep 2016; 6:29564. [PMID: 27383735 PMCID: PMC4935986 DOI: 10.1038/srep29564] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 06/16/2016] [Indexed: 11/08/2022] Open
Abstract
Most arthropod-borne viruses (arboviruses), perpetuated by alternation between a vertebrate host and an insect vector, are likely to emerge through minor genetic changes enabling the virus to adapt to new hosts. In the past decade, chikungunya virus (CHIKV; Alphavirus, Togaviridae) has emerged on La Réunion Island following the selection of a unique substitution in the CHIKV E1 envelope glycoprotein (E1-A226V) of an East-Central-South African (ECSA) genotype conferring a higher transmission rate by the mosquito Aedes albopictus. Assumed to have occurred independently on at least four separate occasions, this evolutionary convergence was suspected to be responsible for CHIKV worldwide expansion. However, assumptions on CHIKV emergence were mainly based on viral genetic changes and the role of the mosquito population quasispecies remained unexplored. Here we show that the nature of the vector population is pivotal in selecting the epidemic CHIKV. We demonstrate using microsatellites mosquito genotyping that Ae. albopictus populations are genetically differentiated, contributing to explain their differential ability to select the E1-226V mutation. Aedes albopictus, newly introduced in Congo coinciding with the first CHIKV outbreak, was not able to select the substitution E1-A226V nor to preferentially transmit a CHIKV clone harboring the E1-226V as did Ae. albopictus from La Réunion.
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86
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Weaver SC, Costa F, Garcia-Blanco MA, Ko AI, Ribeiro GS, Saade G, Shi PY, Vasilakis N. Zika virus: History, emergence, biology, and prospects for control. Antiviral Res 2016; 130:69-80. [PMID: 26996139 PMCID: PMC4851879 DOI: 10.1016/j.antiviral.2016.03.010] [Citation(s) in RCA: 496] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 03/09/2016] [Accepted: 03/12/2016] [Indexed: 12/18/2022]
Abstract
Zika virus (ZIKV), a previously obscure flavivirus closely related to dengue, West Nile, Japanese encephalitis and yellow fever viruses, has emerged explosively since 2007 to cause a series of epidemics in Micronesia, the South Pacific, and most recently the Americas. After its putative evolution in sub-Saharan Africa, ZIKV spread in the distant past to Asia and has probably emerged on multiple occasions into urban transmission cycles involving Aedes (Stegomyia) spp. mosquitoes and human amplification hosts, accompanied by a relatively mild dengue-like illness. The unprecedented numbers of people infected during recent outbreaks in the South Pacific and the Americas may have resulted in enough ZIKV infections to notice relatively rare congenital microcephaly and Guillain-Barré syndromes. Another hypothesis is that phenotypic changes in Asian lineage ZIKV strains led to these disease outcomes. Here, we review potential strategies to control the ongoing outbreak through vector-centric approaches as well as the prospects for the development of vaccines and therapeutics.
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Affiliation(s)
- Scott C Weaver
- Institute for Human Infections and Immunity, Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston TX, USA; Institute for Human Infections and Immunity, Department of Pathology, University of Texas Medical Branch, Galveston TX, USA.
| | - Federico Costa
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil; Instituto da Saúde Coletiva, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Mariano A Garcia-Blanco
- Department of Biochemistry & Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA; Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
| | - Albert I Ko
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil; Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT, USA
| | - Guilherme S Ribeiro
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, BA, Brazil; Instituto da Saúde Coletiva, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - George Saade
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Pei-Yong Shi
- Department of Biochemistry & Molecular Biology, and Sealy Center for Structural Biology & Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA; Department of Pharmacology & Toxicology, and Sealy Center for Structural Biology & Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA
| | - Nikos Vasilakis
- Institute for Human Infections and Immunity, Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston TX, USA; Institute for Human Infections and Immunity, Department of Pathology, University of Texas Medical Branch, Galveston TX, USA
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87
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El-Kafrawy SA, Sohrab SS, Ela SA, Abd-Alla AMM, Alhabbab R, Farraj SA, Othman NA, Hassan AM, Bergoin M, Klitting R, Charrel RN, Hashem AM, Madani TA, Azhar EI. Multiple Introductions of Dengue 2 Virus Strains into Saudi Arabia from 1992 to 2014. Vector Borne Zoonotic Dis 2016; 16:391-9. [PMID: 27135750 DOI: 10.1089/vbz.2015.1911] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Dengue is a significant arboviral infection that represents a major public health concern worldwide. The infection is endemic in most parts of South East Asia, sub-Saharan Africa, and Latin America. Among the four dengue virus (DENV) serotypes, DENV-2 has been reported to be the predominant serotype in Saudi Arabia since 1992. However, virological and epidemiological data of DENV-2 from Saudi Arabia are severely deficient and require further investigations. METHODS Full genome sequencing of a recent DENV-2 isolate and phylogenetic analysis of all available DENV-2 sequences from Saudi Arabia. RESULTS Based on full genome and envelope (E) gene sequence, we show that a recent isolate (DENV-2-Jeddah-2014) belongs to the Indian subcontinent lineage of the Cosmopolitan genotype with close similarity to recent strains from Pakistan. Interestingly, the E gene sequence of DENV-2-Jeddah-2014 isolate was slightly divergent from those previously identified in Saudi Arabia between 1992 and 2004 with three to nine amino acid (aa) substitutions. While our data show that the Cosmopolitan genotype is still circulating in Saudi Arabia, they highlight four distinct genetic groups suggesting at least four independent introductions into the Kingdom. CONCLUSIONS The close clustering of DENV-2 isolates reported from Saudi Arabia between 1992 and 2014 with strains from countries providing the highest numbers of pilgrims attending either Hajj or Umrah pilgrimages (Indonesia, Pakistan, India) clearly suggests a role for pilgrims or expatriates coming from DENV endemic countries in DENV-2 importation into Saudi Arabia. Accordingly, continuous monitoring of the circulation of DENVs in Saudi Arabia must be implemented to undertake effective control and management strategies in the Kingdom. Screening of the pilgrims coming to perform Hajj and Umrah might help prevent the introduction of new DENV strains, which is expected to increase the burden of the disease not only in Saudi Arabia but also in other countries.
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Affiliation(s)
- Sherif A El-Kafrawy
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Sayed S Sohrab
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Said Abol Ela
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Adly M M Abd-Alla
- 2 Insect Pest Control Laboratory, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture , Vienna, Austria .,3 Pests and Plant Protection Department, National Research Center , Cairo, Egypt
| | - Rowa Alhabbab
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia .,4 Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Suha A Farraj
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Norah A Othman
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Ahmed M Hassan
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Max Bergoin
- 5 Laboratoire de Pathologie Comparée, Université Montpellier 2 , Montpellier, France
| | - Raphaelle Klitting
- 6 Aix Marseille Université, IRD French Institute of Research for Development , EHESP French School of Public Health, EPV UMR_D 190 "Emergence des Pathologies Virales", and IHU Méditerranée Infection, APHM Public Hospitals of Marseille, Marseille, France
| | - Remi N Charrel
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia .,6 Aix Marseille Université, IRD French Institute of Research for Development , EHESP French School of Public Health, EPV UMR_D 190 "Emergence des Pathologies Virales", and IHU Méditerranée Infection, APHM Public Hospitals of Marseille, Marseille, France
| | - Anwar M Hashem
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia .,7 Department of Medical Microbiology and Parasitology Faculty of Medicine, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Tariq A Madani
- 8 Department of Medicine, Faculty of Medicine, King Abdulaziz University , Jeddah, Saudi Arabia
| | - Esam I Azhar
- 1 Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University , Jeddah, Saudi Arabia .,4 Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University , Jeddah, Saudi Arabia
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88
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Molecular Docking and Molecular Dynamics Simulation Studies to Predict Flavonoid Binding on the Surface of DENV2 E Protein. Interdiscip Sci 2016; 9:499-511. [PMID: 26969331 DOI: 10.1007/s12539-016-0157-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 01/22/2016] [Accepted: 02/25/2016] [Indexed: 12/26/2022]
Abstract
Dengue infections are currently estimated to be 390 million cases annually. Yet, there is no vaccine or specific therapy available. Envelope glycoprotein E (E protein) of DENV mediates viral attachment and entry into the host cells. Several flavonoids have been shown to inhibit HIV-1 and hepatitis C virus entry during the virus-host membrane fusion. In this work, molecular docking method was employed to predict the binding of nine flavonoids (baicalin, baicalein, EGCG, fisetin, glabranine, hyperoside, ladanein, quercetin and flavone) to the soluble ectodomain of DENV type 2 (DENV2) E protein. Interestingly, eight flavonoids were found to dock into the same binding pocket located between the domain I and domain II of different subunits of E protein. Consistent docking results were observed not only for the E protein structures of the DENV2-Thai and DENV2-Malaysia (a homology model) but also for the E protein structures of tick-borne encephalitis virus and Japanese encephalitis virus. In addition, molecular dynamics simulations were performed to further evaluate the interaction profile of the docked E protein-flavonoid complexes. Ile4, Gly5, Asp98, Gly100 and Val151 residues of the DENV2-My E protein that aligned to the same residues in the DENV2-Thai E protein form consistent hydrogen bond interactions with baicalein, quercetin and EGCG during the simulations. This study demonstrates flavonoids potentially form interactions with the E protein of DENV2.
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89
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Pang EL, Loh HS. Current perspectives on dengue episode in Malaysia. ASIAN PAC J TROP MED 2016; 9:395-401. [PMID: 27086160 DOI: 10.1016/j.apjtm.2016.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/20/2016] [Indexed: 11/29/2022] Open
Abstract
Prevalence of dengue transmission has been alarmed by an estimate of 390 million infections per annum. Urban encroachment, ecological disruption and poor sanitation are all contributory factors of increased epidemiology. Complication however arises from the fact that dengue virus inherently exists as four different serotypes. Secondary infection is often manifested in the more severe form, such that antibody-dependent enhancement (ADE) could aggravate ailment by allowing pre-existing antibodies to form complexes with infecting viruses as means of intrusion. Consequently, increased viraemic titter and suppression of antiviral response are observed. Deep concerns are thus expressed in regards to escalating trend of hospitalisation and mortality rates. In Malaysia, situation is exacerbated by improper clinical management and pending vector control operations. As a preparedness strategy against the potential deadly dengue pandemic, the call for development of a durable and cost-effective dengue vaccine against all infecting serotypes is intensified. Even though several vaccine candidates are currently being evaluated in clinical trials, uncertainties in regards to serotypes interference, incomplete protection and dose adequacy have been raised. Instead of sole reliance on outsourcing, production of local vaccine should be considered in coherent to government's efforts to combat against dengue.
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Affiliation(s)
- Ee Leen Pang
- School of Biosciences, Faculty of Science, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Hwei-San Loh
- School of Biosciences, Faculty of Science, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia; Biotechnology Research Centre, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.
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90
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Goldhardt R, Patel H, Davis JL. Acute Posterior Multifocal Placoid Pigment Epitheliopathy Following Dengue Fever: A New Association for an Old Disease. Ocul Immunol Inflamm 2016; 24:610-614. [DOI: 10.3109/09273948.2015.1125513] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Raquel Goldhardt
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Heena Patel
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Janet L. Davis
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
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91
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Sarathy VV, Milligan GN, Bourne N, Barrett ADT. Mouse models of dengue virus infection for vaccine testing. Vaccine 2015; 33:7051-60. [PMID: 26478201 PMCID: PMC5563257 DOI: 10.1016/j.vaccine.2015.09.112] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 09/10/2015] [Accepted: 09/16/2015] [Indexed: 01/09/2023]
Abstract
Dengue is a mosquito-borne disease caused by four serologically and genetically related viruses termed DENV-1 to DENV-4. With an annual global burden of approximately 390 million infections occurring in the tropics and subtropics worldwide, an effective vaccine to combat dengue is urgently needed. Historically, a major impediment to dengue research has been development of a suitable small animal infection model that mimics the features of human illness in the absence of neurologic disease that was the hallmark of earlier mouse models. Recent advances in immunocompromised murine infection models have resulted in development of lethal DENV-2, DENV-3 and DENV-4 models in AG129 mice that are deficient in both the interferon-α/β receptor (IFN-α/β R) and the interferon-γ receptor (IFN-γR). These models mimic many hallmark features of dengue disease in humans, such as viremia, thrombocytopenia, vascular leakage, and cytokine storm. Importantly AG129 mice develop lethal, acute, disseminated infection with systemic viral loads, which is characteristic of typical dengue illness. Infected AG129 mice generate an antibody response to DENV, and antibody-dependent enhancement (ADE) models have been established by both passive and maternal transfer of DENV-immune sera. Several steps have been taken to refine DENV mouse models. Viruses generated by peripheral in vivo passages incur substitutions that provide a virulent phenotype using smaller inocula. Because IFN signaling has a major role in immunity to DENV, mice that generate a cellular immune response are desired, but striking the balance between susceptibility to DENV and intact immunity is complicated. Great strides have been made using single-deficient IFN-α/βR mice for DENV-2 infection, and conditional knockdowns may offer additional approaches to provide a panoramic view that includes viral virulence and host immunity. Ultimately, the DENV AG129 mouse models result in reproducible lethality and offer multiple disease parameters to evaluate protection by candidate vaccines.
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Affiliation(s)
- Vanessa V Sarathy
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Gregg N Milligan
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, United States; Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
| | - Nigel Bourne
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, United States; Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
| | - Alan D T Barrett
- Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, United States; Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, United States; Center for Tropical Diseases, University of Texas Medical Branch, Galveston, TX, United States; Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX, United States.
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92
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Insights into the molecular evolution of Dengue virus type 4 in Puerto Rico over two decades of emergence. Virus Res 2015; 213:23-31. [PMID: 26569594 DOI: 10.1016/j.virusres.2015.11.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 12/23/2022]
Abstract
Dengue has emerged globally as a major human health problem since the 1950s and is now the most important arboviral disease of humans, infecting nearly 400 million people annually. While some cases are asymptomatic, others can develop a febrile illness (dengue fever) or even progress to severe and fatal dengue. Dengue is caused by any of 4 closely related but distinct viruses, known as Dengue virus serotype 1 to 4 (DENV-1 to DENV-4) which are maintained in endemic transmission to humans in large urban centers of the tropics by Aedes mosquitoes. Since the early 1960s, Puerto Rico, a major metropolitan center in the Caribbean, has experienced increasingly larger and clinically more severe epidemics following the introduction of all four dengue serotypes. The first dengue hemorrhagic fever epidemic in 1986, and a particularly severe outbreak in 1998 were dominated by novel DENV-4 strains that evolved in Puerto Rico, replacing earlier strains and spreading throughout the region. Sequence characterization of 54 complete DENV-4 genomes and their comparative evolution against 74 previously published viral sequences from the region over several decades shows that DENV-4 strains from these periods were genetically distinct based on unique changes in the envelope and non-structural genes. Their replacement of earlier strains in Puerto Rico progressed rapidly, suggesting that strong natural selection played a role in their fixation. This study confirms that DENVs evolve through rapid lineage turnover driven in part by natural selection and genetic drift.
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93
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Islam R, Salahuddin M, Ayubi MS, Hossain T, Majumder A, Taylor-Robinson AW, Mahmud-Al-Rafat A. Dengue epidemiology and pathogenesis: images of the future viewed through a mirror of the past. Virol Sin 2015; 30:326-43. [PMID: 26494479 PMCID: PMC8200867 DOI: 10.1007/s12250-015-3624-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 10/07/2015] [Indexed: 12/18/2022] Open
Abstract
Every year, millions of individuals throughout the world are seriously affected by dengue virus. The unavailability of a vaccine and of anti-viral drugs has made this mosquito-borne disease a serious health concern. Not only does dengue cause fatalities but it also has a profoundly negative economic impact. In recent decades, extensive research has been performed on epidemiology, vector biology, life cycle, pathogenesis, vaccine development and prevention. Although dengue research is still not at a stage to suggest definite hopes of a cure, encouraging significant advances have provided remarkable progress in the fight against infection. Recent developments indicate that both anti-viral drug and vaccine research should be pursued, in parallel with vector control programs.
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Affiliation(s)
- Rashedul Islam
- Bio-Resources Technology and Industrial Biotechnology Laboratory, Department of Biotechnology and Genetic Engineering, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Mohammed Salahuddin
- Bio-Resources Technology and Industrial Biotechnology Laboratory, Department of Biotechnology and Genetic Engineering, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Md Salahuddin Ayubi
- Bio-Resources Technology and Industrial Biotechnology Laboratory, Department of Biotechnology and Genetic Engineering, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Tahmina Hossain
- Bio-Resources Technology and Industrial Biotechnology Laboratory, Department of Biotechnology and Genetic Engineering, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Apurba Majumder
- Biotechnology and Genetic Engineering Discipline, Khulna University, Khulna, 9100, Bangladesh
| | - Andrew W Taylor-Robinson
- School of Medical & Applied Sciences, Central Queensland University, Rockhampton, 4701, Australia
| | - Abdullah Mahmud-Al-Rafat
- Biotechnology and Genetic Engineering Discipline, Khulna University, Khulna, 9100, Bangladesh.
- Research and Development (R&D) Department, Incepta Vaccine Limited, Zirabo, Savar, Dhaka, 1341, Bangladesh.
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94
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Deshmukh JM, Avachat S, Fating A. DENGUE WITH ATYPICAL MANIFESTATIONS AND WHO CLASSIFICATION. ACTA ACUST UNITED AC 2015. [DOI: 10.18410/jebmh/2015/820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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95
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Weaver SC, Forrester NL. Chikungunya: Evolutionary history and recent epidemic spread. Antiviral Res 2015; 120:32-9. [DOI: 10.1016/j.antiviral.2015.04.016] [Citation(s) in RCA: 273] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 04/28/2015] [Indexed: 11/28/2022]
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96
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Singh S, Gupta BP, Manakkadan A, Manandhar KD, Sreekumar E. Phylogenetic study reveals co-circulation of Asian II and Cosmopolitan genotypes of Dengue virus serotype 2 in Nepal during 2013. INFECTION GENETICS AND EVOLUTION 2015; 34:402-9. [DOI: 10.1016/j.meegid.2015.07.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 07/03/2015] [Accepted: 07/05/2015] [Indexed: 10/23/2022]
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97
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Guo X, Yang H, Wu C, Jiang J, Fan J, Li H, Zhu J, Yang Z, Li Y, Zhou H, Zhang J. Molecular Characterization and Viral Origin of the First Dengue Outbreak in Xishuangbanna, Yunnan Province, China, 2013. Am J Trop Med Hyg 2015; 93:390-393. [PMID: 26078324 PMCID: PMC4530767 DOI: 10.4269/ajtmh.14-0044] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 05/02/2015] [Indexed: 11/15/2022] Open
Abstract
In August 2013, Xishuangbanna, Yunnan Province, China, had its first dengue outbreak. Dengue virus (DENV) RNA detection in sera or viral isolates revealed that all 222 autochthonous patients detected and three Chinese travelers from Laos (imported cases) were positive for DENV-3 serotype, while DENV-1 and DENV-4 were detected in travelers from Myanmar and Thailand during the outbreak. For 33 suspected dengue cases collected before the outbreak, two imported cases from Laos and nine residents living in Laos (Laotian cases) were positive for DENV-3. Further, a random subset of 33 positive cases for DENV-3 was sequenced for the full envelope gene of DENV. Phylogenetic analysis showed that all of the 25 autochthonous cases sequenced were grouped into the same clade, genotype II of DENV-3, with imported cases from Laos and Laotian cases. These results suggest that the genotype II of DENV-3 was associated with the outbreak and may have originated from the virus circulating in Laos.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Hongning Zhou
- *Address correspondence to Hongning Zhou, Yunnan Provincial Key Laboratory of Arbo Infectious Disease Control Research (Preparing), Yunnan Institute of Parasitic Diseases, 6 Xiyuan Road, Simao District, Pu'er City, Yunnan 665000, People's Republic of China, E-mail: or Jiusong Zhang, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong Da-Street, Fengtai District, Beijing 100071, People's Republic of China, E-mail:
| | - Jiusong Zhang
- *Address correspondence to Hongning Zhou, Yunnan Provincial Key Laboratory of Arbo Infectious Disease Control Research (Preparing), Yunnan Institute of Parasitic Diseases, 6 Xiyuan Road, Simao District, Pu'er City, Yunnan 665000, People's Republic of China, E-mail: or Jiusong Zhang, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dong Da-Street, Fengtai District, Beijing 100071, People's Republic of China, E-mail:
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98
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A Dengue Virus Type 4 Model of Disseminated Lethal Infection in AG129 Mice. PLoS One 2015; 10:e0125476. [PMID: 25938762 PMCID: PMC4418603 DOI: 10.1371/journal.pone.0125476] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 03/24/2015] [Indexed: 01/08/2023] Open
Abstract
Dengue is a mosquito-borne disease of global public health significance that is caused by four serologically and genetically related viruses (DENV-1 to DENV-4). Most human DENV infections are asymptomatic, but clinical cases can range in severity from a relatively mild self-limiting illness to a severe life-threatening disease. Infection with one serotype of DENV results in life-long homotypic immunity but only short term heterotypic protection. There are no licensed vaccines or antivirals for dengue due in part to difficulty in developing small animal models that mimic the systemic disease seen in humans. Consequently, an important advance was the description of models of DENV-2 infection in AG129 mice (deficient in interferon alpha/beta and gamma receptor signaling) that resemble human disease. However, the need for well characterized models of disease due to DENV-1, -3, and -4 still remains. Here we describe a new AG129 mouse model utilizing a non-mouse-adapted Thai human DENV-4 strain 703-4. Following intraperitoneal challenge, animals experience a rapidly progressive lethal infection without developing neurologic clinical signs of disease. High virus titers are seen in multiple visceral tissues including the liver, spleen and large intestine, and the infected animals develop vascular leakage and thrombocytopenia, hallmarks of human dengue. Taken together, our studies demonstrate that this model is an important addition to the field of dengue research particularly in understanding similarities and differences in the pathologic basis of the disease caused by different DENV serotypes and in determining comparative efficacy of putative vaccines and antivirals.
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99
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RNAi: antiviral therapy against dengue virus. Asian Pac J Trop Biomed 2015; 3:232-6. [PMID: 23620845 DOI: 10.1016/s2221-1691(13)60057-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 02/25/2013] [Indexed: 01/01/2023] Open
Abstract
Dengue virus infection has become a global threat affecting around 100 countries in the world. Currently, there is no licensed antiviral agent available against dengue. Thus, there is a strong need to develop therapeutic strategies that can tackle this life threatening disease. RNA interference is an important and effective gene silencing process which degrades targeted RNA by a sequence specific process. Several studies have been conducted during the last decade to evaluate the efficiency of siRNA in inhibiting dengue virus replication. This review summarizes siRNAs as a therapeutic approach against dengue virus serotypes and concludes that siRNAs against virus and host genes can be next generation treatment of dengue virus infection.
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100
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Wang B, Li Y, Feng Y, Zhou H, Liang Y, Dai J, Qin W, Hu Y, Wang Y, Zhang L, Baloch Z, Yang H, Xia X. Phylogenetic analysis of dengue virus reveals the high relatedness between imported and local strains during the 2013 dengue outbreak in Yunnan, China: a retrospective analysis. BMC Infect Dis 2015; 15:142. [PMID: 25885572 PMCID: PMC4377197 DOI: 10.1186/s12879-015-0908-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 03/13/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND An outbreak of dengue virus (DENV) occurred in Yunnan province. More than 2,000 individuals were infected from August to November 2013. In this study, we aimed to characterize the origin and prevalence of DENV in Dehong prefecture of Yunnan province using phylogenetic and evolutionary analyses of DENV strains collected from local patients and foreign travelers. METHODS A total of 41 DENV-positive serum samples were randomly collected from travelers who entered China at Ruili port or local patients with dengue fever in Dehong prefecture of Yunnan province, China. The envelope (E) gene of DENV was amplified and sequenced. The distributions and evolutionary characteristics of different genotypes were elucidated by phylogenetic and Bayesian analyses. RESULTS Phylogenetically, all of the 41 DENV-positive samples could be classified into genotype I (43.9%) of serotype DENV-1 and the Asian I genotype (56.1%) of serotype DENV-2. DENV strains derived from local patients and foreign travelers were scattered equally within these two clusters. Furthermore, the DENV strains from the two populations exhibited high relatedness based on evolutionary characteristics. CONCLUSIONS These results suggested that imported and local DENV strains occurring during the dengue outbreak in 2013 were highly related. Additionally, these data may suggest that this dengue outbreak was caused by a newly imported infection from the neighboring country of Myanmar.
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Affiliation(s)
- Binghui Wang
- Faculty of Life Science and Technology, Center for Molecular medicine in Yunnan Province, Kunming University of Science and Technology, Kunming, China.
| | - Yaping Li
- Care center for International travel health in Yunnan, Kunming, China.
| | - Yue Feng
- Faculty of Life Science and Technology, Center for Molecular medicine in Yunnan Province, Kunming University of Science and Technology, Kunming, China.
| | - Hongning Zhou
- Yunnan Research Institute of parasitic disease control, Kunming, China.
| | - Yaobo Liang
- Care center for International travel health in Yunnan, Kunming, China.
| | - Jiejie Dai
- Institute of Molecular Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, China.
| | - Weihong Qin
- Care center for International travel health in Yunnan, Kunming, China.
| | - Yunzhang Hu
- Institute of Molecular Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming, China.
| | - Yajuan Wang
- Faculty of Life Science and Technology, Center for Molecular medicine in Yunnan Province, Kunming University of Science and Technology, Kunming, China.
| | - Li Zhang
- Faculty of Life Science and Technology, Center for Molecular medicine in Yunnan Province, Kunming University of Science and Technology, Kunming, China.
| | - Zulqarnain Baloch
- Faculty of Life Science and Technology, Center for Molecular medicine in Yunnan Province, Kunming University of Science and Technology, Kunming, China.
| | - Henglin Yang
- Yunnan Research Institute of parasitic disease control, Kunming, China.
| | - Xueshan Xia
- Faculty of Life Science and Technology, Center for Molecular medicine in Yunnan Province, Kunming University of Science and Technology, Kunming, China.
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