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Benfrid S, Park K, Dellarole M, Voss JE, Tamietti C, Pehau‐Arnaudet G, Raynal B, Brûlé S, England P, Zhang X, Mikhailova A, Hasan M, Ungeheuer M, Petres S, Biering SB, Harris E, Sakuntabhai A, Buchy P, Duong V, Dussart P, Coulibaly F, Bontems F, Rey FA, Flamand M. Dengue virus NS1 protein conveys pro-inflammatory signals by docking onto high-density lipoproteins. EMBO Rep 2022; 23:e53600. [PMID: 35607830 PMCID: PMC10549233 DOI: 10.15252/embr.202153600] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 10/05/2023] Open
Abstract
The dengue virus nonstructural protein 1 (NS1) is a secreted virulence factor that modulates complement, activates immune cells and alters endothelial barriers. The molecular basis of these events remains incompletely understood. Here we describe a functional high affinity complex formed between NS1 and human high-density lipoproteins (HDL). Collapse of the soluble NS1 hexamer upon binding to the lipoprotein particle leads to the anchoring of amphipathic NS1 dimeric subunits into the HDL outer layer. The stable complex can be visualized by electron microscopy as a spherical HDL with rod-shaped NS1 dimers protruding from the surface. We further show that the assembly of NS1-HDL complexes triggers the production of pro-inflammatory cytokines in human primary macrophages while NS1 or HDL alone do not. Finally, we detect NS1 in complex with HDL and low-density lipoprotein (LDL) particles in the plasma of hospitalized dengue patients and observe NS1-apolipoprotein E-positive complexes accumulating overtime. The functional reprogramming of endogenous lipoprotein particles by NS1 as a means to exacerbate systemic inflammation during viral infection provides a new paradigm in dengue pathogenesis.
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Affiliation(s)
- Souheyla Benfrid
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Université Paris Descartes SorbonneParis CitéFrance
- Present address:
Laboratoire de Santé AnimaleANSES, INRA, ENVA, UMR 1161Université Paris‐EstMaisons‐AlfortFrance
| | - Kyu‐Ho Park
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Applied Molecular VirologyInstitut Pasteur KoreaSeongnam‐siKorea
| | - Mariano Dellarole
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Virus Biophysics LaboratoryBionanosciences Research Center (CIBION)National Scientific and Technical Research Council (CONICET)Ciudad Autónoma de Buenos AiresArgentina
| | - James E Voss
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Department of Immunology and MicrobiologyThe Scripps Research InstituteLa JollaCAUSA
| | - Carole Tamietti
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
| | | | - Bertrand Raynal
- Molecular Biophysics FacilityCNRS UMR 3528Institut PasteurParisFrance
| | - Sébastien Brûlé
- Molecular Biophysics FacilityCNRS UMR 3528Institut PasteurParisFrance
| | - Patrick England
- Molecular Biophysics FacilityCNRS UMR 3528Institut PasteurParisFrance
| | - Xiaokang Zhang
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Present address:
Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, CAS Key Laboratory of Brain Connectome and Manipulationthe Brain Cognition and Brain Disease Institute (BCBDI)Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen‐Hong Kong Institute of Brain Science‐Shenzhen Fundamental Research InstitutionsShenzhenChina
| | - Anastassia Mikhailova
- HIV Inflammation et PersistanceInstitut PasteurParisFrance
- Present address:
Division of Molecular NeurobiologyDepartment of Medical Biochemistry and BiophysicsKarolinska InstituteStockholmSweden
| | - Milena Hasan
- Cytometry and Biomarkers Unit of Technology and ServiceCB UTechSParisFrance
| | | | - Stéphane Petres
- Production and Purification of Recombinant Proteins FacilityInstitut PasteurParisFrance
| | - Scott B Biering
- Division of Infectious Diseases and VaccinologySchool of Public HealthUniversity of CaliforniaBerkeleyCAUSA
| | - Eva Harris
- Division of Infectious Diseases and VaccinologySchool of Public HealthUniversity of CaliforniaBerkeleyCAUSA
| | | | - Philippe Buchy
- Virology UnitInstitut Pasteur du CambodgeInstitut Pasteur International NetworkPhnom PenhCambodia
- Present address:
GlaxoSmithKline Vaccines R&DSingaporeSingapore
| | - Veasna Duong
- Virology UnitInstitut Pasteur du CambodgeInstitut Pasteur International NetworkPhnom PenhCambodia
| | - Philippe Dussart
- Virology UnitInstitut Pasteur du CambodgeInstitut Pasteur International NetworkPhnom PenhCambodia
| | - Fasséli Coulibaly
- Department of Biochemistry and Molecular BiologyMonash UniversityClaytonVic.Australia
| | - François Bontems
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
- Département de Biologie et Chimie StructuralesInstitut de Chimie des Substances Naturelles, CNRS UPR2301Gif‐sur‐YvetteFrance
| | - Félix A Rey
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
| | - Marie Flamand
- Unité de Virologie StructuraleInstitut Pasteur and CNRS UMR3569ParisFrance
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Ren J, Chen Z, Ling F, Huang Y, Gong Z, Liu Y, Mao Z, Lin C, Yan H, Shi X, Zhang R, Guo S, Chen E, Wang Z, Sun J. Epidemiology of Indigenous Dengue Cases in Zhejiang Province, Southeast China. Front Public Health 2022; 10:857911. [PMID: 35493348 PMCID: PMC9046573 DOI: 10.3389/fpubh.2022.857911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Autochthonous transmission of the dengue virus (DENV) occurred each year from 2014 to 2018 in Zhejiang province, and became an emerging public health problem. We characterized the autochthonous transmission of the DENV and traced the source of infection for further control and prevention of dengue. Methods Descriptive and spatiotemporal cluster analyses were conducted to characterize the epidemiology of autochthonous transmission of the DENV. Molecular epidemiology was used to identify the infection source. Results In total, 1,654 indigenous cases and 12 outbreaks, with no deaths, were reported during 2004–2018. Before 2017, all outbreaks occurred in suburban areas. During 2017–2018, five out of eight outbreaks occurred in urban areas. The median duration of outbreaks (28 days) in 2017–2018 was shortened significantly (P = 0.028) in comparison with that in 2004–2016 (71 days). The median onset-visiting time, visiting-confirmation time, and onset-confirmation time was 1, 3, and 4 days, respectively. The DENV serotypes responsible for autochthonous transmission in Zhejiang Province were DENV 1, DENV 2, and DENV 3, with DENV 1 being the most frequently reported. Southeast Asia was the predominant source of indigenous infection. Conclusions Zhejiang Province witnessed an increase in the frequency, incidence, and geographic expansion of indigenous Dengue cases in recent years. The more developed coastal and central region of Zhejiang Province was impacted the most.
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Affiliation(s)
- Jiangping Ren
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
- Zhejiang Provincial Station of Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Hangzhou, China
| | - Zhiping Chen
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Feng Ling
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
- Zhejiang Provincial Station of Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Hangzhou, China
| | - Yangmei Huang
- Hangzhou Municipal Center for Disease Control and Prevention, Hangzhou, China
| | - Zhenyu Gong
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
| | - Ying Liu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Zhiyuan Mao
- Department of Tropical Medicine, Tulane School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, United States
| | - Chunping Lin
- The Center for Disease Control and Prevention of Huangyan District, Taizhou, China
| | - Hao Yan
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Xuguang Shi
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Rong Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Song Guo
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Enfu Chen
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
- Zhejiang Provincial Station of Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Hangzhou, China
- Enfu Chen
| | - Zhen Wang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Zhen Wang
| | - Jimin Sun
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
- Zhejiang Provincial Station of Emerging Infectious Disease Control and Prevention, Chinese Academy of Medical Sciences, Hangzhou, China
- *Correspondence: Jimin Sun
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3
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Vuong NL, Cheung KW, Periaswamy B, Vi TT, Duyen HTL, Leong YS, Binte Hamis ZN, Gregorova M, Ooi EE, Sessions O, Rivino L, Yacoub S. Hyperinflammatory syndrome, natural killer cell function and genetic polymorphisms in the pathogenesis of severe dengue. J Infect Dis 2022; 226:1338-1347. [PMID: 35267010 PMCID: PMC9574659 DOI: 10.1093/infdis/jiac093] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/08/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Severe dengue, characterized by shock and organ dysfunction is driven by an excessive host immune response. We investigated the role of hyperinflammation in dengue pathogenesis. METHODS Patients recruited into an observational study were divided into three plasma leak severity grades. Hyperinflammatory biomarkers were measured at 4 time-points. Frequencies, activation and cytotoxic potential of NK cells were analysed by flow cytometry. RNA was extracted from sorted CD56+ NK cells and libraries prepared using SMART-Seq and sequenced using HiSeq3000 (Illumina). RESULTS 69 patients were included (grade 0: 42, grade 1: 19, grade 2: 8 patients). Patients with grade 2 leakage had higher biomarkers than grade 0, including higher peak ferritin levels (83.3% vs 45.2%) and H scores (median 148.5 vs 105.5). NK cells from grade 2 patients exhibited decreased expression of perforin and granzyme B and activation markers. RNA sequencing revealed three SNPs in NK cell functional genes associated with more severe leakage; NK cell lectin-like receptor K1 gene (KLRK1) and PRF1 gene. CONCLUSIONS Features of hyperinflammation are associated with dengue severity, including higher biomarkers, impaired NK cell function and polymorphisms in genes NK cell cytolyitc function genes (KLRK1 and PRF-1). Trials of immunomodulatory therapy in these patients is now warranted.
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Affiliation(s)
- Nguyen Lam Vuong
- Oxford University Clinical Research Unit; Ho Chi Minh City, Vietnam.,University of Medicine and Pharmacy at Ho Chi Minh City; Ho Chi Minh City, Vietnam
| | | | | | - Tran Thuy Vi
- Oxford University Clinical Research Unit; Ho Chi Minh City, Vietnam
| | | | | | | | | | - Eng Eong Ooi
- Duke-NUS Medical School; Singapore.,Saw Swee Hock School of Public Health, National University of Singapore; Singapore
| | - October Sessions
- Duke-NUS Medical School; Singapore.,Saw Swee Hock School of Public Health, National University of Singapore; Singapore.,Department of Pharmacy, National University of Singapore; Singapore
| | - Laura Rivino
- Duke-NUS Medical School; Singapore.,School of Cellular and Molecular Medicine, University of Bristol; UK
| | - Sophie Yacoub
- Oxford University Clinical Research Unit; Ho Chi Minh City, Vietnam.,Centre for Tropcial Medicine and Global Health, University of Oxford; UK
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4
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Navero-Castillejos J, Benitez R, Torner N, Muñoz J, Camprubí-Ferrer D, Peiró-Mestres A, Sulleiro E, Silgado A, Gonzalo V, Falgueras T, Alejo-Cancho I, Roldán M, Plasencia V, Albarracin R, Perez J, Navarro A, Calderón A, Rubio R, Navarro M, Micó M, Llaberia J, Navarro M, Barrachina J, Vilamala A, Martí C, Pulido MÁ, Sanchez-Seco MP, Vazquez A, Martínez A, Jané M, Martínez MJ. Molecular Characterization of Imported and Autochthonous Dengue in Northeastern Spain. Viruses 2021; 13:1910. [PMID: 34696340 PMCID: PMC8539074 DOI: 10.3390/v13101910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 12/26/2022] Open
Abstract
Dengue is the most significant arbovirus worldwide and a public health threat to non-endemic areas in which Aedes vectors are present. Autochthonous dengue transmission has been reported in several European countries in the last decade. Infected travelers from endemic regions arriving to areas colonized by Aedes albopictus in Europe need to be monitored in surveillance and control programs. We aimed to perform molecular characterization of RT-PCR-positive dengue cases detected in Catalonia, northeastern Spain, from 2013 to 2018. The basic demographic information and the geographical regions of importation were also analyzed. One-hundred four dengue cases were studied (103 imported infections and the first autochthonous case in our region). The dengue virus strains detected were serotyped and genotyped using molecular methods, and phylogenetic analyses were conducted. All four dengue serotypes were detected in travelers, including up to 10 different genotypes, reflecting the global circulation of dengue in endemic areas. The primary travel-related case of the 2018 autochthonous transmission was not identified, but the molecular analysis revealed dengue serotype 1, genotype I of Asian origin. Our results highlight the diversity of imported dengue virus strains and the role of molecular epidemiology in supporting arbovirus surveillance programs.
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Affiliation(s)
- Jessica Navero-Castillejos
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Rosa Benitez
- North Metropolitan International Health Unit PROSICS, Hospital Universitari Germans Trias i Pujol, 08916 Badalona, Spain;
| | - Nuria Torner
- CIBER Epidemiology and Public Health CIBERESP, University of Barcelona, 08036 Barcelona, Spain;
| | - José Muñoz
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Daniel Camprubí-Ferrer
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Aida Peiró-Mestres
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Elena Sulleiro
- Department of Microbiology, Vall d’Hebron University Hospital, PROSICS, 08035 Barcelona, Spain; (E.S.); (A.S.)
| | - Aroa Silgado
- Department of Microbiology, Vall d’Hebron University Hospital, PROSICS, 08035 Barcelona, Spain; (E.S.); (A.S.)
| | - Verónica Gonzalo
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Teresa Falgueras
- Hospital Municipal de Badalona, Badalona Serveis Assistencials, 08911 Badalona, Spain; (T.F.); (A.C.)
| | - Izaskun Alejo-Cancho
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Montserrat Roldán
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Virginia Plasencia
- Microbiology Laboratory, Catlab, 08232 Viladecavalls, Spain; (V.P.); (J.P.); (R.R.)
| | - Rosa Albarracin
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Josefa Perez
- Microbiology Laboratory, Catlab, 08232 Viladecavalls, Spain; (V.P.); (J.P.); (R.R.)
| | - Alexander Navarro
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Ana Calderón
- Hospital Municipal de Badalona, Badalona Serveis Assistencials, 08911 Badalona, Spain; (T.F.); (A.C.)
| | - Rosa Rubio
- Microbiology Laboratory, Catlab, 08232 Viladecavalls, Spain; (V.P.); (J.P.); (R.R.)
| | - Mireia Navarro
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Miguel Micó
- Microbiology Department, Xarxa Assistencial Universitària de Manresa, 08243 Manresa, Spain;
| | - Jaume Llaberia
- Hospital de Barcelona, Societat Cooperativa d’Instal·lacions Assistencials Sanitàries (SCIAS), 08034 Barcelona, Spain;
| | - María Navarro
- Microbiology Department, Hospital Universitari de Vic, 08500 Barcelona, Spain; (M.N.); (A.V.)
| | - Josep Barrachina
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Anna Vilamala
- Microbiology Department, Hospital Universitari de Vic, 08500 Barcelona, Spain; (M.N.); (A.V.)
| | - Carmina Martí
- Hospital General de Granollers, 08402 Granollers, Spain; (C.M.); (M.Á.P.)
| | | | - María Paz Sanchez-Seco
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28222 Madrid, Spain; (M.P.S.-S.); (A.V.)
| | - Ana Vazquez
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28222 Madrid, Spain; (M.P.S.-S.); (A.V.)
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain
| | - Ana Martínez
- Public Health Agency of Catalonia, Generalitat of Catalonia, 08005 Barcelona, Spain; (A.M.); (M.J.)
| | - Mireia Jané
- Public Health Agency of Catalonia, Generalitat of Catalonia, 08005 Barcelona, Spain; (A.M.); (M.J.)
| | - Miguel Julián Martínez
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
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5
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Vuong NL, Lam PK, Ming DKY, Duyen HTL, Nguyen NM, Tam DTH, Duong Thi Hue K, Chau NV, Chanpheaktra N, Lum LCS, Pleités E, Simmons CP, Rosenberger KD, Jaenisch T, Bell D, Acestor N, Halleux C, Olliaro PL, Wills BA, Geskus RB, Yacoub S. Combination of inflammatory and vascular markers in the febrile phase of dengue is associated with more severe outcomes. eLife 2021; 10:67460. [PMID: 34154705 PMCID: PMC8331184 DOI: 10.7554/elife.67460] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 06/11/2021] [Indexed: 12/21/2022] Open
Abstract
Background Early identification of severe dengue patients is important regarding patient management and resource allocation. We investigated the association of 10 biomarkers (VCAM-1, SDC-1, Ang-2, IL-8, IP-10, IL-1RA, sCD163, sTREM-1, ferritin, CRP) with the development of severe/moderate dengue (S/MD). Methods We performed a nested case-control study from a multi-country study. A total of 281 S/MD and 556 uncomplicated dengue cases were included. Results On days 1-3 from symptom onset, higher levels of any biomarker increased the risk of developing S/MD. When assessing together, SDC-1 and IL-1RA were stable, while IP-10 changed the association from positive to negative; others showed weaker associations. The best combinations associated with S/MD comprised IL-1RA, Ang-2, IL-8, ferritin, IP-10, and SDC-1 for children, and SDC-1, IL-8, ferritin, sTREM-1, IL-1RA, IP-10, and sCD163 for adults. Conclusions Our findings assist the development of biomarker panels for clinical use and could improve triage and risk prediction in dengue patients. Funding This study was supported by the EU's Seventh Framework Programme (FP7-281803 IDAMS), the WHO, and the Bill and Melinda Gates Foundation.
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Affiliation(s)
- Nguyen Lam Vuong
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam.,University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Viet Nam
| | - Phung Khanh Lam
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam.,University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Viet Nam
| | - Damien Keng Yen Ming
- Department of Infectious Disease, Imperial College London, London, United Kingdom
| | - Huynh Thi Le Duyen
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam
| | - Nguyet Minh Nguyen
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam
| | - Dong Thi Hoai Tam
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam
| | - Kien Duong Thi Hue
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam
| | - Nguyen Vv Chau
- Hospital for Tropical Diseases, Ho Chi Minh city, Viet Nam
| | | | | | - Ernesto Pleités
- Hospital Nacional de Niños Benjamin Bloom, San Salvador, El Salvador
| | - Cameron P Simmons
- Centre for Tropical Medicine and Global health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom.,Institute for Vector-Borne Disease, Monash University, Clayton, Australia
| | - Kerstin D Rosenberger
- Section Clinical Tropical Medicine, Department for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany
| | - Thomas Jaenisch
- Section Clinical Tropical Medicine, Department for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany.,Heidelberg Institute of Global Health (HIGH), Heidelberg University Hospital, Heidelberg, Germany
| | - David Bell
- Independent consultant, Issaquah, United States
| | - Nathalie Acestor
- Consultant, Intellectual Ventures, Global Good Fund, Bellevue, United States
| | - Christine Halleux
- UNICEF/UNDP/World Bank/WHO Special Programme for Research and Training in Tropical Diseases, World Health Organization, Geneva, Switzerland
| | - Piero L Olliaro
- Centre for Tropical Medicine and Global health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Bridget A Wills
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam.,Centre for Tropical Medicine and Global health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Ronald B Geskus
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam.,Centre for Tropical Medicine and Global health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
| | - Sophie Yacoub
- Oxford University Clinical Research Unit (OUCRU), Ho Chi Minh City, Viet Nam.,Centre for Tropical Medicine and Global health, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom
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6
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Illustrated histopathological features of fatal dengue cases in Colombia. ACTA ACUST UNITED AC 2020; 40:438-447. [PMID: 33030821 PMCID: PMC7666849 DOI: 10.7705/biomedica.5016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Indexed: 11/21/2022]
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7
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Buetow KH, Meador LR, Menon H, Lu YK, Brill J, Cui H, Roe DJ, DiCaudo DJ, Hastings KT. High GILT Expression and an Active and Intact MHC Class II Antigen Presentation Pathway Are Associated with Improved Survival in Melanoma. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2019; 203:2577-2587. [PMID: 31591149 PMCID: PMC6832889 DOI: 10.4049/jimmunol.1900476] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
The MHC class I Ag presentation pathway in melanoma cells has a well-established role in immune-mediated destruction of tumors. However, the clinical significance of the MHC class II Ag presentation pathway in melanoma cells is less clear. In Ag-presenting cells, IFN-γ-inducible lysosomal thiol reductase (GILT) is critical for MHC class II-restricted presentation of multiple melanoma Ags. Although not expressed in benign melanocytes of nevi, GILT and MHC class II expression is induced in malignant melanocytes in a portion of melanoma specimens. Analysis of The Cancer Genome Atlas cutaneous melanoma data set showed that high GILT mRNA expression was associated with improved overall survival. Expression of IFN-γ, TNF-α, and IL-1β was positively associated with GILT expression in melanoma specimens. These cytokines were capable of inducing GILT expression in human melanoma cells in vitro. GILT protein expression in melanocytes was induced in halo nevi, which are nevi undergoing immune-mediated regression, and is consistent with the association of GILT expression with improved survival in melanoma. To explore potential mechanisms of GILT's association with patient outcome, we investigated pathways related to GILT function and expression. In contrast to healthy skin specimens, in which the MHC class II pathway was nearly uniformly expressed and intact, there was substantial variation in the MHC class II pathway in the The Cancer Genome Atlas melanoma specimens. Both an active and intact MHC class II pathway were associated with improved overall survival in melanoma. These studies support a role for GILT and the MHC class II Ag presentation pathway in melanoma outcome.
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Affiliation(s)
- Kenneth H Buetow
- School of Life Sciences, Arizona State University, Tempe, AZ 85281
| | - Lydia R Meador
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ 85004
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
| | - Hari Menon
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ 85004
| | - Yih-Kuang Lu
- School of Life Sciences, Arizona State University, Tempe, AZ 85281
| | - Jacob Brill
- School of Life Sciences, Arizona State University, Tempe, AZ 85281
| | - Haiyan Cui
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
| | - Denise J Roe
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
- Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ 85724; and
| | | | - K Taraszka Hastings
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, AZ 85004;
- University of Arizona Cancer Center, University of Arizona, Tucson, AZ 85724
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8
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Sugiyanto Z, Yohan B, Hadisaputro S, Dharmana E, Suharti C, Djamiatun K, Rahmi FL, Sasmono RT. Inhibitory Effect of Alpha-Mangostin to Dengue Virus Replication and Cytokines Expression in Human Peripheral Blood Mononuclear Cells. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:345-349. [PMID: 31538308 PMCID: PMC6814697 DOI: 10.1007/s13659-019-00218-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 09/10/2019] [Indexed: 05/22/2023]
Abstract
Massive pro-inflammatory cytokines production has been correlated with the pathogenesis of severe dengue disease. The active compound of mangosteen fruit pericarps, α-mangostin, has been commonly used as traditional medicine and dietary supplement. We examined the effect of α-mangostin against dengue virus (DENV) infection in human peripheral blood mononuclear cells (PBMC) by the measurement of virus titer and TNF-α and IFN-γ cytokines concentration post infection. Increasing concentration of α-mangostin inhibited virus replication and reduced inflammatory cytokines expression at 24- and 48-h post infection. Our results support the potential use of α-mangostin as anti-antiviral and anti-inflammatory therapies in the treatment of dengue.
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Affiliation(s)
- Zaenal Sugiyanto
- Faculty of Health Science, Dian Nuswantoro University, Jl. Imam Bonjol 270, Semarang, 50131, Indonesia
- Doctoral Program in Medical and Health Sciences, Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
| | - Benediktus Yohan
- Eijkman Institute for Molecular Biology, Ministry of Research, Technology and Higher Education, Jl. Diponegoro 69, Jakarta, 10430, Indonesia
| | - Soeharyo Hadisaputro
- Doctoral Program in Medical and Health Sciences, Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
- Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
| | - Edi Dharmana
- Doctoral Program in Medical and Health Sciences, Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
- Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
| | - Catharina Suharti
- Doctoral Program in Medical and Health Sciences, Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
- Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
| | - Kis Djamiatun
- Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
| | - Fifin L Rahmi
- Faculty of Medicine, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, 50275, Indonesia
| | - R Tedjo Sasmono
- Eijkman Institute for Molecular Biology, Ministry of Research, Technology and Higher Education, Jl. Diponegoro 69, Jakarta, 10430, Indonesia.
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9
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Molecular Epidemiology of Dengue in Panama: 25 Years of Circulation. Viruses 2019; 11:v11080764. [PMID: 31434193 PMCID: PMC6724401 DOI: 10.3390/v11080764] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/16/2019] [Accepted: 07/24/2019] [Indexed: 11/16/2022] Open
Abstract
Dengue virus (DENV) is the most prevalent arbovirus in terms of human public health importance globally. In addition to DENV epidemiological surveillance, genomic surveillance may help investigators understand the epidemiological dynamics, geographic distribution, and temporal patterns of DENV circulation. Herein, we aimed to reconstruct the molecular epidemiology and phylogeny of DENV in Panama to connect the epidemiological history of DENV dispersal and circulation in Latin America. We retrospectively analyzed the epidemiological data obtained during 25 years of DENV surveillance in Panama. DENV was reintroduced in Panama in 1993 after a 35 year absence of autochthonous transmission. The increase in the number of total dengue cases has been accompanied by an increase in severe and fatal cases, with the highest case fatality rate recorded in 2011. All four serotypes were detected in Panama, which is characterized by serotype replacement and/or co-circulation of multiple serotypes. Phylogenetic analysis of datasets collected from envelope (E) gene sequences obtained from viruses isolated from human sera demonstrated that circulating viruses were highly diverse and clustered in distinct clades, with co-circulation of clades from the same genotype. Our analyses also suggest that Panamanian strains were related to viruses from different regions of the Americas, suggesting a continuous exchange of viruses within the Americas.
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10
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Lima WG, Souza NA, Fernandes SOA, Cardoso VN, Godói IP. Serum lipid profile as a predictor of dengue severity: A systematic review and meta‐analysis. Rev Med Virol 2019; 29:e2056. [DOI: 10.1002/rmv.2056] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/24/2019] [Accepted: 04/27/2019] [Indexed: 12/12/2022]
Affiliation(s)
- William Gustavo Lima
- Laboratório de Radioisótopos, Departamento de Análises Clínicas e Toxicológicas, Faculdade de farmácia, Campus PampulhaUniversidade Federal de Minas Gerais Belo Horizonte MG Brazil
| | - Nayara Alves Souza
- Escola de Enfermagem, Campus Centro‐oeste Dona LinduUniversidade Federal de São João Del‐rei Divinópolis MG Brazil
| | - Simone Odília Antunes Fernandes
- Laboratório de Radioisótopos, Departamento de Análises Clínicas e Toxicológicas, Faculdade de farmácia, Campus PampulhaUniversidade Federal de Minas Gerais Belo Horizonte MG Brazil
| | - Valbert Nascimento Cardoso
- Laboratório de Radioisótopos, Departamento de Análises Clínicas e Toxicológicas, Faculdade de farmácia, Campus PampulhaUniversidade Federal de Minas Gerais Belo Horizonte MG Brazil
| | - Isabella Piassi Godói
- Instituto de Saúde e Estudos BiológicosUniversidade Federal do Sul e Sudeste do Pará Marabá Pará Brazil
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11
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Ouédraogo S, Benmarhnia T, Bonnet E, Somé PA, Barro AS, Kafando Y, Soma DD, Dabiré RK, Saré D, Fournet F, Ridde V. Evaluation of Effectiveness of a Community-Based Intervention for Control of Dengue Virus Vector, Ouagadougou, Burkina Faso. Emerg Infect Dis 2019; 24:1859-1867. [PMID: 30226159 PMCID: PMC6154160 DOI: 10.3201/eid2410.180069] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
We evaluated the effectiveness of a community-based intervention for dengue vector control in Ouagadougou, the capital city of Burkina Faso. Households in the intervention (n = 287) and control (n = 289) neighborhoods were randomly sampled and the outcomes collected before the intervention (October 2015) and after the intervention (October 2016). The intervention reduced residents' exposure to dengue vector bites (vector saliva biomarker difference -0.08 [95% CI -0.11 to -0.04]). The pupae index declined in the intervention neighborhood (from 162.14 to 99.03) and increased in the control neighborhood (from 218.72 to 255.67). Residents in the intervention neighborhood were less likely to associate dengue with malaria (risk ratio 0.70 [95% CI 0.58-0.84]) and had increased knowledge about dengue symptoms (risk ratio 1.44 [95% CI 1.22-1.69]). Our study showed that well-planned, evidence/community-based interventions that control exposure to dengue vectors are feasible and effective in urban settings in Africa that have limited resources.
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12
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Deen J, von Seidlein L. Paracetamol for dengue fever: no benefit and potential harm? LANCET GLOBAL HEALTH 2019; 7:e552-e553. [PMID: 31000122 DOI: 10.1016/s2214-109x(19)30157-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 11/29/2022]
Affiliation(s)
| | - Lorenz von Seidlein
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
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13
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Dias M, Pattabiraman C, Siddappa S, Gowda M, Shet A, Smith D, Muehlemann B, Tamma K, Solomon T, Jones T, Krishna S. Complete assembly of a dengue virus type 3 genome from a recent genotype III clade by metagenomic sequencing of serum. Wellcome Open Res 2019; 3:44. [PMID: 30167467 PMCID: PMC6085601 DOI: 10.12688/wellcomeopenres.14438.2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2019] [Indexed: 12/02/2022] Open
Abstract
Background: Mosquito-borne flaviviruses, such as dengue and Japanese encephalitis virus (JEV), cause life-threatening diseases, particularly in the tropics. Methods: Here we performed unbiased metagenomic sequencing of RNA extracted from the serum of four patients and the plasma of one patient, all hospitalized at a tertiary care centre in South India with severe or prolonged febrile illness, together with the serum from one healthy control, in 2014. Results: We identified and assembled a complete dengue virus type 3 sequence from a case of severe dengue fever. We also identified a small number of JEV sequences in the serum of two adults with febrile illness, including one with severe dengue. Phylogenetic analysis revealed that the dengue sequence belonged to genotype III. It has an estimated divergence time of 13.86 years from the most highly related Indian strains. In total, 11 amino acid substitutions were predicted for this strain in the antigenic envelope protein, when compared to the parent strain used for development of the first commercial dengue vaccine. Conclusions: We demonstrate that both genome assembly and detection of a low number of viral sequences are possible through the unbiased sequencing of clinical material. These methods may help ascertain causal agents for febrile illnesses with no known cause.
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Affiliation(s)
- Mary Dias
- St. John's Medical College and Hospital, Bangalore, 560034, India
| | - Chitra Pattabiraman
- National Institute of Mental Health and Neurosciences, India, Bangalore, 560029, India
| | - Shilpa Siddappa
- Centre for Cellular and Molecular Platforms, Bangalore, 560065, India
| | - Malali Gowda
- Trans-Disciplinary University, Foundation for Revitalization of Local Health Traditions, Bangalore, 560064, India
| | - Anita Shet
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, 21205, USA
| | - Derek Smith
- Center for Pathogen Evolution, Department of
Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
- World Health Organization
Collaborating Center for Modeling, Evolution, and Control of Emerging Infectious Diseases, Cambridge, CB2 3EJ, UK
| | - Barbara Muehlemann
- Center for Pathogen Evolution, Department of
Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
- World Health Organization
Collaborating Center for Modeling, Evolution, and Control of Emerging Infectious Diseases, Cambridge, CB2 3EJ, UK
| | | | - Tom Solomon
- Institute of Infection and Global Health, and National Institute for Health Research, Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, Liverpool, L69 7BE, UK
| | - Terry Jones
- Center for Pathogen Evolution, Department of
Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
- World Health Organization
Collaborating Center for Modeling, Evolution, and Control of Emerging Infectious Diseases, Cambridge, CB2 3EJ, UK
| | - Sudhir Krishna
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, 560065, India
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14
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Mahmud-Al-Rafat A, Majumder A, Taufiqur Rahman KM, Mahedi Hasan AM, Didarul Islam KM, Taylor-Robinson AW, Billah MM. Decoding the enigma of antiviral crisis: Does one target molecule regulate all? Cytokine 2019; 115:13-23. [PMID: 30616034 PMCID: PMC7129598 DOI: 10.1016/j.cyto.2018.12.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 12/02/2018] [Accepted: 12/03/2018] [Indexed: 12/13/2022]
Abstract
IL-6 class switching provides regulation over pro- and anti-inflammatory responses. Unregulated IL-6 trans-signaling promotes uncontrolled pro-inflammatory responses. ADAM-17 regulates class switching between IL-6 trans- and classical-signaling. Selective ADAM-17 blocking restricts overexpression of pro-inflammatory cytokines. ADAM-17 may be an antiviral drug target to reduce immunopathology disease severity.
Disease fatality associated with Ebola, SARS-CoV and dengue infections in humans is attributed to a cytokine storm that is triggered by excessive pro-inflammatory responses. Interleukin (IL)-6 acts as a mediator between pro- and anti-inflammatory reactivity by initiating trans- and classical-signaling, respectively. Hence, IL-6 is assumed to provide a target for a broad range of antiviral agents. Available immunosuppressive antivirals are directed to control an often exaggerated pro-inflammatory response that gives rise to complex clinical conditions such as lymphocytopenia. It is known that IL-6, via its soluble receptor (sIL-6R), initiates a pro-inflammatory response while an anti-inflammatory response is triggered by the membrane-bound IL-6 receptor (IL-6R). Future antivirals should thus aim to target the mechanism that regulates switching between IL-6 trans- and classical-signaling. In this review, we propose that the tumour necrosis factor-α converting enzyme ADAM-17 could be the master molecule involved in regulating IL-6 class switching and through this in controlling pro- and anti-inflammatory responses to viral antigenic stimuli. Therefore, ADAM-17 should be considered as a potential target molecule for novel antiviral drug discovery that would regulate host reactivity to infection and thereby limit or prevent fatal outcomes.
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Affiliation(s)
- Abdullah Mahmud-Al-Rafat
- Research & Development Division, Incepta Vaccine Ltd., Zirabo, Savar, Dhaka 1341, Bangladesh; Biotechnology and Genetic Engineering Discipline, Khulna University, Khulna 9208, Bangladesh.
| | - Apurba Majumder
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover 30625, Germany
| | - K M Taufiqur Rahman
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N6N5, Canada.
| | - A M Mahedi Hasan
- Institute of Cell Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3FF, UK.
| | - K M Didarul Islam
- Biotechnology and Genetic Engineering Discipline, Khulna University, Khulna 9208, Bangladesh
| | - Andrew W Taylor-Robinson
- School of Health, Medical & Applied Sciences, Central Queensland University, Brisbane, QLD 4000, Australia.
| | - Md Morsaline Billah
- Biotechnology and Genetic Engineering Discipline, Khulna University, Khulna 9208, Bangladesh.
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15
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Ren J, Ling F, Sun J, Gong Z, Liu Y, Shi X, Zhang R, Zhai Y, Chen E, Chen Z. Epidemiological profile of dengue in Zhejiang Province, southeast China. PLoS One 2018; 13:e0208810. [PMID: 30533054 PMCID: PMC6289432 DOI: 10.1371/journal.pone.0208810] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 11/23/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Dengue is one of the most important vector-bore infectious diseases in China because of its drastic increase in incidence, geographic extension and profound influence on China's economy. This study aims to retrospectively uncover the epidemiological profile of dengue in Zhejiang, one of the most developed provinces in China, and to find the problem existing in dengue control and prevention. METHODOLOGY Descriptive analyses on the dengue incidence and associated factors were performed. We also identified potential space-time cluster and generated the risk map of dengue. PRINCIPAL FINDINGS A total of 529 cases were reported in Zhejiang Province from 2005 to 2016, and 44.4% were imported. 67.7% of cases were 25~60 years old and the overall male-to-female sex ratio was 1.09:1. Dengue was reported all year round and 70.7% of cases occurred between August and October. Indigenous cases were only reported in the period between July to November and more than half occurred in September. Geographically, dengue was most distributed in Jinghua (3.62 per million), Shaoxing (1.00 per million) and Taizhou (0.81 per million) prefecture level cities. Outbreaks were confirmed in Yiwu, Keqiao and Huangyan counties in 2009, 2015, and 2016, respectively. 73.9% cases would seek medical advice within two days after onset and be confirmed within 9 days after onset. 75.6% would be recognized as dengue within 8 days after their first visit. The time intervals between onset and confirmation (median 7 vs 6 days; Wilcoxon rank sum test Z = -2.40, P = 0.016), first visit and confirmation (median 7 vs 6 days; Wilcoxon rank sum test Z = -2.59, P = 0.009) of indigenous cases were significantly longer than those of imported ones. However, the time intervals between onset and first visit for indigenous cases was shorter (median 0 vs 1 days; Wilcoxon rank sum test Z = -2.10, P = 0.036). Fever (99.1%), fatigue (81.9), rash (63.7%), headache (67.2%) and myalgia (52.60%) were the most frequently mentioned symptoms. CONCLUSIONS Zhejiang has recently witnessed an increase in incidence and geographic extension of dengue. Timely diagnosis is important to stop local transmission and outbreak.
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Affiliation(s)
- Jiangping Ren
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
- Field Epidemiology Training Program of Zhejiang Province, Hangzhou, China
| | - Feng Ling
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
| | - Jimin Sun
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
| | - Zhenyu Gong
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
| | - Ying Liu
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Xuguang Shi
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Rong Zhang
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Yujia Zhai
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
| | - Enfu Chen
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
- Key Laboratory of Vaccine, Prevention and Control of Infectious Disease of Zhejiang Province, Hangzhou, China
- * E-mail: (EC); (ZC)
| | - Zhiping Chen
- Zhejiang Provincial Centre for Disease Control and Prevention, Hangzhou, China
- * E-mail: (EC); (ZC)
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16
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Li F, Lang Y, Ji Z, Xia Z, Han Y, Cheng Y, Liu G, Sun F, Zhao Y, Gao M, Chen Z, Wu Y, Li W, Cao Z. A scorpion venom peptide Ev37 restricts viral late entry by alkalizing acidic organelles. J Biol Chem 2018; 294:182-194. [PMID: 30404919 PMCID: PMC6322876 DOI: 10.1074/jbc.ra118.005015] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/01/2018] [Indexed: 12/26/2022] Open
Abstract
Viral infections still threaten human health all over the world, and many people die from viral diseases every year. However, there are no effective vaccines or drugs for preventing or managing most viral diseases. Thus, the discovery and development of broad-spectrum antiviral agents remain urgent. Here, we expressed and purified a venom peptide, Ev37, from the scorpion Euscorpiops validus in a prokaryotic system. We found that rEv37 can inhibit dengue virus type 2 (DENV-2), hepatitis C virus (HCV), Zika virus (ZIKV), and herpes simplex virus type 1 (HSV-1) infections in a dose-dependent manner at noncytotoxic concentrations, but that it has no effect on Sendai virus (SeV) and adenovirus (AdV) infections in vitro Furthermore, rEv37 alkalized acidic organelles to prevent low pH-dependent fusion of the viral membrane-endosomal membrane, which mainly blocks the release of the viral genome from the endosome to the cytoplasm and then restricts viral late entry. Taken together, our results indicate that the scorpion venom peptide Ev37 is a broad-spectrum antiviral agent with a specific molecular mechanism against viruses undergoing low pH-dependent fusion activation during entry into host cells. We conclude that Ev37 is a potential candidate for development as an antiviral drug.
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Affiliation(s)
- Fangfang Li
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yange Lang
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Zhenglin Ji
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Zhiqiang Xia
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yuewen Han
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yuting Cheng
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Gaomin Liu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Fang Sun
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yonghui Zhao
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Minjun Gao
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Zongyun Chen
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yingliang Wu
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China; Bio-drug Research Center, Wuhan University, Wuhan 430072, China
| | - Wenxin Li
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China; Bio-drug Research Center, Wuhan University, Wuhan 430072, China
| | - Zhijian Cao
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China; Bio-drug Research Center, Wuhan University, Wuhan 430072, China; Hubei Province Engineering and Technology Research, Center for Fluorinated Pharmaceuticals, Wuhan University, Wuhan 430072, China.
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17
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Nonalcoholic fatty liver disease is associated with increased hemoconcentration, thrombocytopenia, and longer hospital stay in dengue-infected patients with plasma leakage. PLoS One 2018; 13:e0205965. [PMID: 30332476 PMCID: PMC6192651 DOI: 10.1371/journal.pone.0205965] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 10/04/2018] [Indexed: 01/13/2023] Open
Abstract
A prominent histopathological feature of fatal dengue cases is hepatic steatosis. However, the association between hepatic steatosis and dengue severity is unknown. We conducted a study to determine the associations of nonalcoholic fatty liver disease (NAFLD) with laboratory markers of dengue severity and length of hospital stay (LOS). A retrospective study was conducted at a private hospital in Jakarta, Indonesia, from December 2011 to December 2016. Bivariate analysis was performed to analyze the associations of laboratory markers of dengue severity and LOS with the presence or absence of NAFLD in no-plasma-leakage (no leakage) and plasma-leakage (leakage) groups. There were 267 dengue-infected patients included in this study. Of these patients, 115 (43.1%) were classified as belonging to the no leakage group, and 152 (56.9%) were classified as belonging to the leakage group. Of the 115 patients belonging to the no leakage group, 53 (46.1%) did not have NAFLD, and 62 (53.9%) had NAFLD. Of the 152 patients belonging to the leakage group, 85 (55.9%) did not have NAFLD, and 67 (44.1%) had NAFLD. Leakage group patients with NAFLD experienced significantly higher hemoconcentration severity (p = 0.04), lower platelet count (p = 0.004) and higher LOS (p = 0.042) than did leakage group patients without NAFLD. The presence of NAFLD in dengue-infected patients with plasma leakage was associated with more severe hemoconcentration, thrombocytopenia and prolonged hospital stay.
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18
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Ramirez L, Betanzos A, Raya-Sandino A, González-Mariscal L, Del Angel RM. Dengue virus enters and exits epithelial cells through both apical and basolateral surfaces and perturbs the apical junctional complex. Virus Res 2018; 258:39-49. [PMID: 30278191 DOI: 10.1016/j.virusres.2018.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 09/17/2018] [Accepted: 09/26/2018] [Indexed: 01/06/2023]
Abstract
Dengue is the most relevant mosquito-borne viral disease in the world. It has been estimated that 390 million infections of dengue occur each year. Dengue virus (DENV) infection can be asymptomatic or can produce a self-limited febrile illness called dengue fever (DF) or a severe form of the infection called severe dengue. In some viruses, the entry and egress from cells, occur in a specific domain of polarized endothelial and epithelial cells. In this study, we investigated whether the entry and release of DENV was polarized in epithelial cells, and evaluated the effect of DENV infection on cellular junctions of epithelial cells. We used MDCK epithelial cells, which serve as an excellent model to study a functional barrier due to the presence of an apical junctional complex (AJC), and showed that entry and release of DENV from the cells, is bipolar. Additionally, we performed paracellular flux, diffusion of membrane lipid, immunofluorescence and immunoblotting assays to evaluate the integrity of the AJC during DENV infection. We observed that at later stages of infection, DENV altered the barrier function causing a decrease in the transepithelial electrical resistance and the degradation and delocalization of TJ and AJ proteins. The present study contributes to understand how DENV traverse epithelia in order to cause a productive infection, and provides insights into the mechanism of DENV pathogenesis.
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Affiliation(s)
| | - Abigail Betanzos
- Departamento de Infectómica y Patogénesis Molecular, Mexico; Conacyt, Mexico
| | - Arturo Raya-Sandino
- Departamento de Fisiología, Biofísicay Neurociencias. CINVESTAV-IPN, Mexico, D.F., Mexico
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Kao JC, HuangFu WC, Tsai TT, Ho MR, Jhan MK, Shen TJ, Tseng PC, Wang YT, Lin CF. The antiparasitic drug niclosamide inhibits dengue virus infection by interfering with endosomal acidification independent of mTOR. PLoS Negl Trop Dis 2018; 12:e0006715. [PMID: 30125275 PMCID: PMC6117097 DOI: 10.1371/journal.pntd.0006715] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 08/30/2018] [Accepted: 07/23/2018] [Indexed: 12/12/2022] Open
Abstract
Background The antiparasitic agent niclosamide has been demonstrated to inhibit the arthropod-borne Zika virus. Here, we investigated the antiviral capacity of niclosamide against dengue virus (DENV) serotype 2 infection in vitro and in vivo. Principle finding Niclosamide effectively retarded DENV-induced infection in vitro in human adenocarcinoma cells (A549), mouse neuroblastoma cells (Neuro-2a), and baby hamster kidney fibroblasts (BHK-21). Treatment with niclosamide did not retard the endocytosis of DENV while niclosamide was unable to enhance the antiviral type I interferon response. Furthermore, niclosamide did not cause a direct effect on viral replicon-based expression. Niclosamide has been reported to competitively inhibit the mTOR (mammalian target of rapamycin), STAT3 (signal transducer and activator of transcription 3), and NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) signaling pathways; however, selective inhibitors of those pathways did not reduce DENV infection. Similar to the vacuolar-type H+-ATPase inhibitor bafilomycin A1, both niclosamide and other protonophores, such as CCCP (carbonyl cyanide m-chlorophenyl hydrazone), and FCCP (carbonyl cyanide-p-trifluoromethoxyphenylhydrazone), effectively reduced endosomal acidification and viral dsRNA replication. Co-administration of a single dose of niclosamide partially decreased viral replication, viral encephalitis, and mortality in DENV-infected ICR suckling mice. Significance These results demonstrate that niclosamide diminishes viral infection by hindering endosomal acidification. Dengue and severe dengue cause global health concerns annually. Without antiviral drugs, supportive care is the only treatment option for patients with DENV infection. A current vaccine has been approved for protection against DENV infection; however, the potential risks and challenges associated with the immunopathogenesis of DENV remain unresolved. For anti-dengue therapy, the repurposing of drugs with antimicrobial and anticancer properties is a possible pharmacological strategy. In this study, we evaluated the potential antiviral effects of the antiparasitic drug niclosamide, considering its current pharmacological efficacy against arthropod-borne Zika virus infection. Using in vitro and in vivo models of DENV infection, we demonstrated that one of the therapeutic effects of niclosamide is to significantly target endosomal acidification. Following safety screening, repurposing niclosamide treatment may facilitate the development of anti-dengue drugs in the near future.
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Affiliation(s)
- Jo-Chi Kao
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Chun HuangFu
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Ting Tsai
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Min-Ru Ho
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ming-Kai Jhan
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ting-Jing Shen
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Po-Chun Tseng
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yung-Ting Wang
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chiou-Feng Lin
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
- * E-mail:
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Badreddine S, Al-Dhaheri F, Al-Dabbagh A, Al-Amoudi A, Al-Ammari M, Elatassi N, Abbas H, Magliah R, Malibari A, Almoallim H. Dengue fever. Clinical features of 567 consecutive patients admitted to a tertiary care center in Saudi Arabia. Saudi Med J 2018; 38:1025-1033. [PMID: 28917067 PMCID: PMC5694636 DOI: 10.15537/smj.2017.10.20965] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES To delineate the clinical features and outcomes of dengue infection and to guide clinician of early diagnosis and identification of risks factors for dengue hemorrhagic fever. Methods: This study is a retrospective cross-sectional. Clinical records of 567 patients with a confirmed diagnosis of dengue infection, admitted to a single hospital in Jeddah, Saudi Arabia, between January 2010 and June 2014 were reviewed. Results: Dengue infection was most common in adult males. Sixty-eight percent of infections were in Saudi nationals. In addition to the diagnostic clinical features, leucopenia and thrombocytopenia were typical of dengue infection. Approximately 4.1% of adult patients and 7.1% of pediatric patients developed dengue hemorrhagic fever (DHF). Abdominal pain and vomiting were more common in patients developing DHF. Mean platelet count was lower in adult, but not pediatric patients developing DHF. Peak alanine aminotransferase (ALT) was higher in adult and pediatric patients developing DHF. Three patients died, 2 of them developed DHF. Ninety-eight percent of adult patients and 92% of pediatric patients made a full recovery. Conclusions: Dengue infection is common in Jeddah. Abdominal pain and vomiting, thrombocytopenia, and elevated ALT are typical of severe infection, which is more likely to be associated with significant morbidity and mortality.
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Affiliation(s)
- Samar Badreddine
- Department of Medicine, Dr. Soliman Fakeeh Hospital, Jeddah, Kingdom of Saudi Arabia. E-mail.
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21
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Dias M, Pattabiraman C, Siddappa S, Gowda M, Shet A, Smith D, Muehlemann B, Tamma K, Solomon T, Jones T, Krishna S. Complete assembly of a dengue virus type 3 genome from a recent genotype III clade by metagenomic sequencing of serum. Wellcome Open Res 2018; 3:44. [PMID: 30167467 PMCID: PMC6085601 DOI: 10.12688/wellcomeopenres.14438.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2018] [Indexed: 08/17/2023] Open
Abstract
Background: Mosquito-borne flaviviruses, such as dengue and Japanese encephalitis virus (JEV), cause life-threatening diseases, particularly in the tropics. Methods: Here we performed unbiased metagenomic sequencing of RNA extracted from the serum of four patients and the plasma of one patient, all hospitalized at a tertiary care centre in South India with severe or prolonged febrile illness, together with the serum from one healthy control, in 2014. Results: We identified and assembled a complete dengue virus type 3 sequence from a case of severe dengue fever. We also identified a small number of JEV sequences in the serum of two adults with febrile illness, including one with severe dengue. Phylogenetic analysis revealed that the dengue sequence belonged to genotype III. It has an estimated divergence time of 13.86 years from the most highly related Indian strains. In total, 11 amino acid substitutions were predicted for this strain in the antigenic envelope protein, when compared to the parent strain used for development of the first commercial dengue vaccine. Conclusions: We demonstrate that both genome assembly and detection of a low number of viral sequences are possible through the unbiased sequencing of clinical material. These methods may help ascertain causal agents for febrile illnesses with no known cause.
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Affiliation(s)
- Mary Dias
- St. John's Medical College and Hospital, Bangalore, 560034, India
| | - Chitra Pattabiraman
- National Institute of Mental Health and Neurosciences, India, Bangalore, 560029, India
| | - Shilpa Siddappa
- Centre for Cellular and Molecular Platforms, Bangalore, 560065, India
| | - Malali Gowda
- Trans-Disciplinary University, Foundation for Revitalization of Local Health Traditions, Bangalore, 560064, India
| | - Anita Shet
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, 21205, USA
| | - Derek Smith
- Center for Pathogen Evolution, Department of
Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
- World Health Organization
Collaborating Center for Modeling, Evolution, and Control of Emerging Infectious Diseases, Cambridge, CB2 3EJ, UK
| | - Barbara Muehlemann
- Center for Pathogen Evolution, Department of
Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
- World Health Organization
Collaborating Center for Modeling, Evolution, and Control of Emerging Infectious Diseases, Cambridge, CB2 3EJ, UK
| | | | - Tom Solomon
- Institute of Infection and Global Health, and National Institute for Health Research, Health Protection Research Unit in Emerging and Zoonotic Infections, University of Liverpool, Liverpool, L69 7BE, UK
| | - Terry Jones
- Center for Pathogen Evolution, Department of
Zoology, University of Cambridge, Cambridge, CB2 3EJ, UK
- World Health Organization
Collaborating Center for Modeling, Evolution, and Control of Emerging Infectious Diseases, Cambridge, CB2 3EJ, UK
| | - Sudhir Krishna
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, 560065, India
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22
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High prevalence of dengue antibodies and the arginine variant of the FcγRIIa polymorphism in asymptomatic individuals in a population of Minas Gerais State, Southeast Brazil. Immunogenetics 2017; 70:355-362. [DOI: 10.1007/s00251-017-1046-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 11/12/2017] [Indexed: 12/30/2022]
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23
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An Envelope-Modified Tetravalent Dengue Virus-Like-Particle Vaccine Has Implications for Flavivirus Vaccine Design. J Virol 2017; 91:JVI.01181-17. [PMID: 28956764 DOI: 10.1128/jvi.01181-17] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 09/09/2017] [Indexed: 12/30/2022] Open
Abstract
Dengue viruses (DENV) infect 50 to 100 million people each year. The spread of DENV-associated infections is one of the most serious public health problems worldwide, as there is no widely available vaccine or specific therapeutic for DENV infections. To address this, we developed a novel tetravalent dengue vaccine by utilizing virus-like particles (VLPs). We created recombinant DENV1 to -4 (DENV1-4) VLPs by coexpressing precursor membrane (prM) and envelope (E) proteins, with an F108A mutation in the fusion loop structure of E to increase the production of VLPs in mammalian cells. Immunization with DENV1-4 VLPs as individual, monovalent vaccines elicited strong neutralization activity against each DENV serotype in mice. For use as a tetravalent vaccine, DENV1-4 VLPs elicited high levels of neutralization activity against all four serotypes simultaneously. The neutralization antibody responses induced by the VLPs were significantly higher than those with DNA or recombinant E protein immunization. Moreover, antibody-dependent enhancement (ADE) was not observed against any serotype at a 1:10 serum dilution. We also demonstrated that the Zika virus (ZIKV) VLP production level was enhanced by introducing the same F108A mutation into the ZIKV envelope protein. Taken together, these results suggest that our strategy for DENV VLP production is applicable to other flavivirus VLP vaccine development, due to the similarity in viral structures, and they describe the promising development of an effective tetravalent vaccine against the prevalent flavivirus.IMPORTANCE Dengue virus poses one of the most serious public health problems worldwide, and the incidence of diseases caused by the virus has increased dramatically. Despite decades of effort, there is no effective treatment against dengue. A safe and potent vaccine against dengue is still needed. We developed a novel tetravalent dengue vaccine by using virus-like particles (VLPs), which are noninfectious because they lack the viral genome. Previous attempts of other groups to use dengue VLPs resulted in generally poor yields. We found that a critical amino acid mutation in the envelope protein enhances the production of VLPs. Our tetravalent vaccine elicited potent neutralizing antibody responses against all four DENV serotypes. Our findings can also be applied to vaccine development against other flaviviruses, such as Zika virus or West Nile virus.
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24
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Ho MR, Tsai TT, Chen CL, Jhan MK, Tsai CC, Lee YC, Chen CH, Lin CF. Blockade of dengue virus infection and viral cytotoxicity in neuronal cells in vitro and in vivo by targeting endocytic pathways. Sci Rep 2017; 7:6910. [PMID: 28761128 PMCID: PMC5537343 DOI: 10.1038/s41598-017-07023-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/20/2017] [Indexed: 02/07/2023] Open
Abstract
Dengue virus (DENV) infection in neuronal cells was speculated to trigger neuropathy. Herein, we determined the blockade of DENV infection by targeting endocytic pathways in vitro and in vivo. In DENV-infected mouse brains, we previously showed that viral proteins are expressed in neuronal cells around the hippocampus with accompanying neurotoxicity. DENV caused infection, including entry, double-stranded (ds)RNA replication, protein expression, and virus release, followed by cytotoxicity in the mouse neuronal Neuro-2a cell line. Pharmacologically blocking clathrin-mediated endocytosis of the DENV retarded viral replication. Targeting vacuolar-type H+-ATPase (V-ATPase)-based endosomal acidification effectively blocked the DENV replication process, but had no direct effect on viral translation. Blockade of the clathrin- and V-ATPase-based endocytic pathways also attenuated DENV-induced neurotoxicity. Inhibiting endosomal acidification effectively retarded DENV infection, acute viral encephalitis, and mortality. These results demonstrate that clathrin mediated endocytosis of DENV followed by endosomal acidification-dependent viral replication in neuronal cells, which can lead to neurotoxicity.
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Affiliation(s)
- Min-Ru Ho
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Tsung-Ting Tsai
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Chia-Ling Chen
- Translational Research Center, Taipei Medical University, Taipei, 110, Taiwan
| | - Ming-Kai Jhan
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Cheng-Chieh Tsai
- Department of Nursing, Chung Hwa University of Medical Technology, Tainan, 717, Taiwan
| | - Yi-Chao Lee
- The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan
| | - Chun-Han Chen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.,Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Chiou-Feng Lin
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan. .,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.
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25
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Suwarto S, Sasmono RT, Sinto R, Ibrahim E, Suryamin M. Association of Endothelial Glycocalyx and Tight and Adherens Junctions With Severity of Plasma Leakage in Dengue Infection. J Infect Dis 2017; 215:992-999. [PMID: 28453844 PMCID: PMC5407050 DOI: 10.1093/infdis/jix041] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/18/2017] [Indexed: 12/21/2022] Open
Abstract
Background. The role of vascular endothelial (VE) components in dengue infection with plasma leakage is unknown. Therefore, we conducted a study to determine the adjusted association of the endothelial glycocalyx layer (EGL) and tight and adherens junction markers with plasma leakage. Methods. A prospective observational study was conducted at Cipto Mangunkusumo Hospital and Persahabatan Hospital, Jakarta, Indonesia. Adult dengue patients admitted to the hospital on the third day of fever from November 2013 through August 2015 were included in the study. Multiple regression analysis was used to determine the adjusted association of the VE biomarkers with the severity of the plasma leakage. Results. A total of 103 dengue-infected patients participated in the study. In the critical phase, levels of syndecan-1 (odds ratio [OR] = 1.004; 95% confidence interval [CI] = 1.001–1.007) and chondroitin sulfate (OR = 1.157; 95% CI = 1.025–1.307) had an adjusted association with plasma leakage, whereas levels of syndecan-1 (OR = 1.004; 95% CI = 1.000–1.008) and claudin-5 (OR = 1.038; 95% CI = 1.004–1.074) had an adjusted association with severe plasma leakage. Conclusions. In dengue-infected patients, elevated levels of syndecan-1 and chondroitin sulfate are strongly associated with plasma leakage, and elevated levels of syndecan-1 and claudin-5 are strongly associated with severe plasma leakage.
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Affiliation(s)
- Suhendro Suwarto
- Division of Tropical and Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo National Hospital, Jakarta, Indonesia
| | | | - Robert Sinto
- Division of Tropical and Infectious Diseases, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Cipto Mangunkusumo National Hospital, Jakarta, Indonesia
| | - Eppy Ibrahim
- Department of Internal Medicine, Persahabatan Hospital, Jakarta, Indonesia
| | - Maulana Suryamin
- Department of Internal Medicine, Persahabatan Hospital, Jakarta, Indonesia
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26
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Scherwitzl I, Mongkolsapaja J, Screaton G. Recent advances in human flavivirus vaccines. Curr Opin Virol 2017; 23:95-101. [DOI: 10.1016/j.coviro.2017.04.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 04/07/2017] [Indexed: 11/25/2022]
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Moreira-Soto A, Soto-Garita C, Corrales-Aguilar E. Neotropical primary bat cell lines show restricted dengue virus replication. Comp Immunol Microbiol Infect Dis 2016; 50:101-105. [PMID: 28131369 DOI: 10.1016/j.cimid.2016.12.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 12/06/2016] [Accepted: 12/19/2016] [Indexed: 11/25/2022]
Abstract
Dengue is the most widespread arboviral disease affecting humans. Bats are recognized carriers of emerging viral zoonoses and have been proposed as dengue reservoirs, since RNA/NS1 and/or antiviral antibodies have been detected. Yet, experimental inoculation of Artibeus bats failed to show virus replication. This conflicting results prevent drawing further conclusions of whether bats sustain dengue infection. To test bat cellular permissivity to dengue infection, we established primary bat embryonic cells from diverse organs and tissues of Artibeus jamaicensis, Molossus sinaloae, and Desmodus rotundus. We observed a limited serotype-, organ-, and bat species- specific dengue susceptibility. Only some Molossus-derived primary cells sustained poorly initial Dengue serotype-1 replication, though it was latter absent. To elucidate if Molossus bats may play a role in dengue replication, ecological or in vivo experiments must be performed. Taken together our results show that Dengue did not replicate efficiently in cell lines derived from Neotropical bat species.
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Affiliation(s)
- Andrés Moreira-Soto
- Virology-CIET (Research Center for Tropical Diseases), Faculty of Microbiology, University of Costa Rica, 11501-2060 San José, Costa Rica.
| | - Claudio Soto-Garita
- Virology-CIET (Research Center for Tropical Diseases), Faculty of Microbiology, University of Costa Rica, 11501-2060 San José, Costa Rica.
| | - Eugenia Corrales-Aguilar
- Virology-CIET (Research Center for Tropical Diseases), Faculty of Microbiology, University of Costa Rica, 11501-2060 San José, Costa Rica.
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28
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Chakraborty S. Computational analysis of perturbations in the post-fusion Dengue virus envelope protein highlights known epitopes and conserved residues in the Zika virus. F1000Res 2016; 5:1150. [PMID: 27540468 DOI: 10.12688/f1000research.8853.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/27/2016] [Indexed: 12/11/2022] Open
Abstract
The dramatic transformation of the Zika virus (ZIKV) from a relatively unknown virus to a pathogen generating global-wide panic has exposed the dearth of detailed knowledge about this virus. Decades of research in the related Dengue virus (DENV), finally culminating in a vaccine registered for use in endemic regions (CYD-TDV) in three countries, provides key insights in developing strategies for tackling ZIKV, which has caused global panic to microcephaly and Guillain-Barre Syndrome. Dengue virus (DENV), a member of the family Flaviviridae, the causal agent of the self-limiting Dengue fever and the potentially fatal hemorrhagic fever/dengue shock syndrome, has been a scourge in tropical countries for many centuries. The recently solved structure of mature ZIKV (PDB ID:5IRE) has provided key insights into the structure of the envelope (E) and membrane (M) proteins, the primary target of neutralizing antibodies. The previously established MEPP methodology compares two conformations of the same protein and identifies residues with significant spatial and electrostatic perturbations. In the current work, MEPP analyzed the pre-and post-fusion DENV type 2 envelope (E) protein, and identified several known epitopes (His317, Tyr299, Glu26, Arg188, etc.) (MEPPitope). These residues are overwhelmingly conserved in ZIKV and all DENV serotypes, and also enumerates residue pairs that undergo significant polarity reversal. Characterization of α-helices in E-proteins show that α1 is not conserved in the sequence space of ZIKV and DENV. Furthermore, perturbation of α1 in the post-fusion DENV structure includes a known epitope Asp215, a residue absent in the pre-fusion α1. A cationic β-sheet in the GAG-binding domain that is stereochemically equivalent in ZIKV and all DENV serotypes is also highlighted due to a residue pair (Arg286-Arg288) that has a significant electrostatic polarity reversal upon fusion. Finally, two highly conserved residues (Thr32 and Thr40), with little emphasis in existing literature, are found to have significant electrostatic perturbation. Thus, a combination of different computational methods enable the rapid and rational detection of critical residues as epitopes in the search for an elusive therapy or vaccine that neutralizes multiple members of the Flaviviridae family. These secondary structures are conserved in the related Dengue virus (DENV), and possibly rationalize isolation techniques particle adsorption on magnetic beads coated with anionic polymers and anionic antiviral agents (viprolaxikine) for DENV. These amphipathic α-helices could enable design of molecules for inhibiting α-helix mediated protein-protein interactions. Finally, comparison of these secondary structures in proteins from related families illuminate subtle changes in the proteins that might render them ineffective to previously successful drugs and vaccines, which are difficult to identify by a simple sequence or structural alignment. Finally, conflicting results about residues that are involved in neutralizing a DENV-E protein by the potent antibody 5J7 (PDB ID:3J6U) are reported.
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29
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White MK, Wollebo HS, David Beckham J, Tyler KL, Khalili K. Zika virus: An emergent neuropathological agent. Ann Neurol 2016; 80:479-89. [PMID: 27464346 PMCID: PMC5086418 DOI: 10.1002/ana.24748] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 07/25/2016] [Accepted: 07/25/2016] [Indexed: 01/07/2023]
Abstract
The emergence of Zika virus in the Americas has followed a pattern that is familiar from earlier epidemics of other viruses, where a new disease is introduced into a human population and then spreads rapidly with important public health consequences. In the case of Zika virus, an accumulating body of recent evidence implicates the virus in the etiology of serious pathologies of the human nervous system, that is, the occurrence of microcephaly in neonates and Guillain-Barré syndrome in adults. Zika virus is an arbovirus (arthropod-borne virus) and a member of the family Flaviviridae, genus Flavivirus. Zika virions are enveloped and icosahedral, and contain a nonsegmented, single-stranded, positive-sense RNA genome, which encodes 3 structural and 7 nonstructural proteins that are expressed as a single polyprotein that undergoes cleavage. Zika genomic RNA replicates in the cytoplasm of infected host cells. Zika virus was first detected in 1947 in the blood of a febrile monkey in Uganda's Zika Forest and in crushed suspensions of the Aedes mosquito, which is one of the vectors for Zika virus. The virus remained obscure, with a few human cases confined to Africa and Asia. There are two lineages of the Zika virus, African and Asian, with the Asian strain causing outbreaks in Micronesia in 2007 and French Polynesia in 2013-2014. From here, the virus spread to Brazil with the first report of autochthonous Zika transmission in the Americas in March 2015. The rapid advance of the virus in the Americas and its likely association with microcephaly and Guillain-Barré syndrome make Zika an urgent public health concern. Ann Neurol 2016;80:479-489.
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Affiliation(s)
- Martyn K White
- Department of Neuroscience, Center for Neurovirology, Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA
| | - Hassen S Wollebo
- Department of Neuroscience, Center for Neurovirology, Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA
| | - J David Beckham
- Division of Infectious Diseases, Department of Medicine, Anschutz Medical Campus, University of Colorado, Aurora, CO
- Department of Neurology, Anschutz Medical Campus, University of Colorado, Aurora, CO
| | - Kenneth L Tyler
- Division of Infectious Diseases, Department of Medicine, Anschutz Medical Campus, University of Colorado, Aurora, CO
- Department of Neurology, Anschutz Medical Campus, University of Colorado, Aurora, CO
- Department of Microbiology and Immunology, Anschutz Medical Campus, University of Colorado, Aurora, CO
| | - Kamel Khalili
- Department of Neuroscience, Center for Neurovirology, Comprehensive NeuroAIDS Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA.
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30
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Chakraborty S. Computational analysis of perturbations in the post-fusion Dengue virus envelope protein highlights known epitopes and conserved residues in the Zika virus. F1000Res 2016; 5:1150. [PMID: 27540468 PMCID: PMC4965698 DOI: 10.12688/f1000research.8853.2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/12/2016] [Indexed: 01/08/2023] Open
Abstract
The dramatic transformation of the Zika virus (ZIKV) from a relatively unknown virus to a pathogen generating global-wide panic has exposed the dearth of detailed knowledge about this virus. Decades of research in the related Dengue virus (DENV), finally culminating in a vaccine registered for use in endemic regions (CYD-TDV) in three countries, provides key insights in developing strategies for tackling ZIKV, which has caused global panic to microcephaly and Guillain-Barre Syndrome. Dengue virus (DENV), a member of the family
Flaviviridae, the causal agent of the self-limiting Dengue fever and the potentially fatal hemorrhagic fever/dengue shock syndrome, has been a scourge in tropical countries for many centuries. The recently solved structure of mature ZIKV (PDB ID:5IRE) has provided key insights into the structure of the envelope (E) and membrane (M) proteins, the primary target of neutralizing antibodies. The previously established MEPP methodology compares two conformations of the same protein and identifies residues with significant spatial and electrostatic perturbations. In the current work, MEPP analyzed the pre-and post-fusion DENV type 2 envelope (E) protein, and identified several known epitopes (His317, Tyr299, Glu26, Arg188, etc.) (MEPPitope). These residues are overwhelmingly conserved in ZIKV and all DENV serotypes, and also enumerates residue pairs that undergo significant polarity reversal. Characterization of α-helices in E-proteins show that α1 is not conserved in the sequence space of ZIKV and DENV. Furthermore, perturbation of α1 in the post-fusion DENV structure includes a known epitope Asp215, a residue absent in the pre-fusion α1. A cationic β-sheet in the GAG-binding domain that is stereochemically equivalent in ZIKV and all DENV serotypes is also highlighted due to a residue pair (Arg286-Arg288) that has a significant electrostatic polarity reversal upon fusion. Finally, two highly conserved residues (Thr32 and Thr40), with little emphasis in existing literature, are found to have significant electrostatic perturbation. Thus, a combination of different computational methods enable the rapid and rational detection of critical residues as epitopes in the search for an elusive therapy or vaccine that neutralizes multiple members of the
Flaviviridae family. These secondary structures are conserved in the related Dengue virus (DENV), and possibly rationalize isolation techniques particle adsorption on magnetic beads coated with anionic polymers and anionic antiviral agents (viprolaxikine) for DENV. These amphipathic α-helices could enable design of molecules for inhibiting α-helix mediated protein-protein interactions. Finally, comparison of these secondary structures in proteins from related families illuminate subtle changes in the proteins that might render them ineffective to previously successful drugs and vaccines, which are difficult to identify by a simple sequence or structural alignment. Finally, conflicting results about residues that are involved in neutralizing a DENV-E protein by the potent antibody 5J7 (PDB ID:3J6U) are reported.
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