2016
A novel mosquito ubiquitin targets viral envelope protein for degradation and reduces virion production during dengue virus infection
Troupin A, Londono-Renteria B, Conway MJ, Cloherty E, Jameson S, Higgs S, Vanlandingham DL, Fikrig E, Colpitts TM. A novel mosquito ubiquitin targets viral envelope protein for degradation and reduces virion production during dengue virus infection. Biochimica Et Biophysica Acta 2016, 1860: 1898-1909. PMID: 27241849, PMCID: PMC4949077, DOI: 10.1016/j.bbagen.2016.05.033.Peer-Reviewed Original ResearchConceptsProtein degradationUbiquitin proteinGene expressionProtein expression constructsSite-directed mutagenesisViral protein degradationInnate immune signalingDengue virusProteasomal degradationProtein interactionsExpression constructsMosquito cellsSignificant human diseaseMicroarray analysisImmune signalingViral envelope proteinsVirus infectionHuman diseasesBlood feedingAmino acidsProteinMultiple functionsQRT-PCRVirion productionAntiviral function
2012
Antibodies against the Envelope Glycoprotein Promote Infectivity of Immature Dengue Virus Serotype 2
da Silva Voorham JM, Rodenhuis-Zybert IA, Nuñez N, Colpitts TM, van der Ende-Metselaar H, Fikrig E, Diamond MS, Wilschut J, Smit JM. Antibodies against the Envelope Glycoprotein Promote Infectivity of Immature Dengue Virus Serotype 2. PLOS ONE 2012, 7: e29957. PMID: 22431958, PMCID: PMC3303773, DOI: 10.1371/journal.pone.0029957.Peer-Reviewed Original ResearchConceptsAntibody-dependent enhancementImmature DENVAnti-prM antibodiesStructural proteins prMSevere dengue diseaseDengue virus antibodiesDengue virus serotype 2Dose-dependent mannerImmature particlesStandard virus preparationsVirus preparationsVirus antibodiesPrecursor membrane proteinVirus serotype 2Lethal infectionMouse modelDengue diseaseImmune serumDENV particlesProtein prMInfection studiesAntibodiesEnhanced infectivityInfectionSerotype 2
2011
prM-antibody renders immature West Nile virus infectious in vivo
Colpitts TM, Rodenhuis-Zybert I, Moesker B, Wang P, Fikrig E, Smit JM. prM-antibody renders immature West Nile virus infectious in vivo. Journal Of General Virology 2011, 92: 2281-2285. PMID: 21697345, PMCID: PMC3347797, DOI: 10.1099/vir.0.031427-0.Peer-Reviewed Original ResearchConceptsWest Nile virusInfectious West Nile virusNile virusDeath of micePrM antibodiesNeurotropic pathogensWNV particlesSevere human diseasesFamily FlaviviridaeVivo proofImmature flavivirus particlesInfectious potentialAntibodiesDiseaseViral surfaceVirus particlesPrM proteinFlavivirus particlesVirusHuman diseasesInfectionMiceFlavivirusesBrainSerum
2009
Fusion Loop Peptide of the West Nile Virus Envelope Protein Is Essential for Pathogenesis and Is Recognized by a Therapeutic Cross-Reactive Human Monoclonal Antibody
Sultana H, Foellmer HG, Neelakanta G, Oliphant T, Engle M, Ledizet M, Krishnan MN, Bonafé N, Anthony KG, Marasco WA, Kaplan P, Montgomery RR, Diamond MS, Koski RA, Fikrig E. Fusion Loop Peptide of the West Nile Virus Envelope Protein Is Essential for Pathogenesis and Is Recognized by a Therapeutic Cross-Reactive Human Monoclonal Antibody. The Journal Of Immunology 2009, 183: 650-660. PMID: 19535627, PMCID: PMC3690769, DOI: 10.4049/jimmunol.0900093.Peer-Reviewed Original ResearchConceptsWest Nile virus envelope proteinWest Nile virusVirus envelope proteinDengue virusCross-reactive human monoclonal antibodiesBlood-brain barrier permeabilityEnvelope proteinWest Nile virus infectionNeutralization escape variantsNile virusWest Nile encephalitisNeutralization escape mutantsHuman monoclonal antibodyFatal neurological diseaseParental West Nile virusFusion loopEscape variantsInflammatory responseBarrier permeabilityLethal encephalitisMAb11Virus infectionHuman mAbsEscape mutantsNeurological diseasesInflammasome-activating nanoparticles as modular systems for optimizing vaccine efficacy
Demento SL, Eisenbarth SC, Foellmer HG, Platt C, Caplan MJ, Saltzman W, Mellman I, Ledizet M, Fikrig E, Flavell RA, Fahmy TM. Inflammasome-activating nanoparticles as modular systems for optimizing vaccine efficacy. Vaccine 2009, 27: 3013-3021. PMID: 19428913, PMCID: PMC2695996, DOI: 10.1016/j.vaccine.2009.03.034.Peer-Reviewed Original ResearchMeSH KeywordsAdjuvants, ImmunologicAnimalsAntibody FormationCarrier ProteinsCD8-Positive T-LymphocytesDendritic CellsLactic AcidLipopolysaccharidesMiceMice, Inbred C57BLNanoparticlesNLR Family, Pyrin Domain-Containing 3 ProteinPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerVaccinationViral Envelope ProteinsWest Nile FeverWest Nile Virus VaccinesConceptsPattern recognition receptorsToll-like receptorsInflammasome activationInnate immune system activationEffective adaptive immune responseIntracellular pattern recognition receptorsAntigen-presenting cellsAdaptive immune responsesWest Nile encephalitisImmune system activationInnate immune pathwaysWild-type macrophagesDendritic cellsCellular immunityVaccination approachesVaccine efficacyIL-1betaNLRP3 inflammasomeAdjuvant systemImmune responsePotent new approachMurine modelInflammasome activitySystem activationImmune pathways
2008
A recombinant West Nile virus envelope protein vaccine candidate produced in Spodoptera frugiperda expresSF+ cells
Bonafé N, Rininger JA, Chubet RG, Foellmer HG, Fader S, Anderson JF, Bushmich SL, Anthony K, Ledizet M, Fikrig E, Koski RA, Kaplan P. A recombinant West Nile virus envelope protein vaccine candidate produced in Spodoptera frugiperda expresSF+ cells. Vaccine 2008, 27: 213-222. PMID: 18996430, PMCID: PMC2651515, DOI: 10.1016/j.vaccine.2008.10.046.Peer-Reviewed Original ResearchConceptsVaccine candidatesClinical adverse effectsProtein vaccine candidateRecombinant vaccine candidateWNV vaccineAntibody titersHumoral immunityProtective efficacySafe vaccineWNV infectionChallenge modelVaccine antigensAnimal modelsViral protectionHigh dosesProtein antigensAdverse effectsImmunogenicitySerum-free cultureAntigenCell linesNaïve foalsVaccineAluminum hydroxideInfectionDysregulation of TLR3 Impairs the Innate Immune Response to West Nile Virus in the Elderly
Kong KF, Delroux K, Wang X, Qian F, Arjona A, Malawista SE, Fikrig E, Montgomery RR. Dysregulation of TLR3 Impairs the Innate Immune Response to West Nile Virus in the Elderly. Journal Of Virology 2008, 82: 7613-7623. PMID: 18508883, PMCID: PMC2493309, DOI: 10.1128/jvi.00618-08.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge FactorsAgedAged, 80 and overCell Adhesion MoleculesCell LineCells, CulturedCytokinesFemaleHumansImmunity, InnateLectins, C-TypeMacrophagesMaleMiddle AgedNorth AmericaProtein BindingReceptors, Cell SurfaceSTAT1 Transcription FactorToll-Like Receptor 3Viral Envelope ProteinsWest Nile FeverWest Nile virusConceptsInnate immune responseToll-like receptor 3Intercellular adhesion molecule 3West Nile virusImmune responseYoung donorsC-type lectin dendritic cell-specific intercellular adhesion molecule 3Dendritic cell-specific intercellular adhesion molecule 3Nile virusBlood-brain barrierWNV envelope proteinSevere neurological diseaseResponsiveness of macrophagesPrimary human macrophagesCytokine levelsOlder donorsWNV infectionNeurological diseasesReceptor 3Human macrophagesOlder individualsElevated levelsMacrophagesMolecule 3Significant differences
2007
Antibodies Targeting Linear Determinants of the Envelope Protein Protect Mice against West Nile Virus
Ledizet M, Kar K, Foellmer HG, Bonafé N, Anthony KG, Gould LH, Bushmich SL, Fikrig E, Koski RA. Antibodies Targeting Linear Determinants of the Envelope Protein Protect Mice against West Nile Virus. The Journal Of Infectious Diseases 2007, 196: 1741-1748. PMID: 18190253, DOI: 10.1086/523654.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAntibodies, ViralAntibody AffinityChlorocebus aethiopsDrosophilaEpitopesFemaleFluorescent Antibody TechniqueHorsesImmunization, PassiveImmunoglobulinsMiceMice, Inbred C3HMolecular Sequence DataPeptide FragmentsVero CellsViral Envelope ProteinsWest Nile FeverWest Nile virusConceptsE proteinMultiple flavivirus infectionsVirus-neutralizing antibodiesE protein epitopesFlavivirus envelope proteinProtect miceWest Nile virusFlavivirus infectionLethal challengeProtective antibodiesWest Nile virus E proteinProtective epitopesVirus E proteinRelated flavivirusesImmunoglobulinAntibodiesNile virusLinear determinantsEpitopesEnvelope proteinProtein epitopesMiceHost cell membraneWNVPeptidesWest Nile Virus Envelope Protein Inhibits dsRNA-Induced Innate Immune Responses
Arjona A, Ledizet M, Anthony K, Bonafé N, Modis Y, Town T, Fikrig E. West Nile Virus Envelope Protein Inhibits dsRNA-Induced Innate Immune Responses. The Journal Of Immunology 2007, 179: 8403-8409. PMID: 18056386, DOI: 10.4049/jimmunol.179.12.8403.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCytokinesImmunity, InnateMacrophagesMicePoly I-CPolyubiquitinRecombinant ProteinsRNA, Double-StrandedToll-Like Receptor 3Viral Envelope ProteinsWest Nile virusConceptsWest Nile virusInnate immune responseReceptor-interacting protein 1Immune responseMajor structural proteinVirus-associated molecular patternsDipteran cellsViral replication intermediatesRNA helicasesAdaptor molecule TRIFReplication intermediatesStructural proteinsWNV envelope proteinGlycosylation patternsMolecular patternsAntiviral stateGlycosylation profileProtein 1Murine macrophagesProinflammatory cytokinesCytokine productionImmunosuppressive effectsDsRNAImmune cellsEnvelope proteinA West Nile Virus Recombinant Protein Vaccine That Coactivates Innate and Adaptive Immunity
Huleatt J, Foellmer H, Hewitt D, Tang J, Desai P, Price A, Jacobs A, Takahashi V, Huang Y, Nakaar V, Alexopoulou L, Fikrig E, Powell T, McDonald W. A West Nile Virus Recombinant Protein Vaccine That Coactivates Innate and Adaptive Immunity. The Journal Of Infectious Diseases 2007, 195: 1607-1617. PMID: 17471430, DOI: 10.1086/517613.Peer-Reviewed Original ResearchConceptsImmune responseAntibody responseImmunoglobulin G antibody responseC3H/HeN miceWest Nile virus vaccineAdaptive immune signalsTLR5-deficient miceAntigen-specific responsesG antibody responseProtective immune responseAdaptive immune responsesToll-like receptorsWNV envelope proteinLethal WNV challengeRecombinant protein vaccineInterleukin-8 productionNeutralized viral infectivityEnzyme-linked immunosorbentEffective WNV vaccinesWNV vaccineHeN miceVirus challengeProtein vaccineVirus vaccineWNV challenge
2006
Antiviral Peptides Targeting the West Nile Virus Envelope Protein
Bai F, Town T, Pradhan D, Cox J, Ashish, Ledizet M, Anderson JF, Flavell RA, Krueger JK, Koski RA, Fikrig E. Antiviral Peptides Targeting the West Nile Virus Envelope Protein. Journal Of Virology 2006, 81: 2047-2055. PMID: 17151121, PMCID: PMC1797586, DOI: 10.1128/jvi.01840-06.Peer-Reviewed Original ResearchConceptsWest Nile virusMurine blood-brain barrierEnvelope proteinBlood-brain barrierPeptide 9West Nile encephalitisWNV envelope proteinCentral nervous systemWest Nile virus envelope proteinCDNA phage display libraryBrain parenchymaVirus envelope proteinHuman encephalitisViral envelope proteinsWNV infectionControl animalsPeptide-1Nervous systemRelated flavivirusesDengue virusAntiviral activityNew therapeuticsInhibition concentrationAntiviral peptidesNile virusCrystal Structure of West Nile Virus Envelope Glycoprotein Reveals Viral Surface Epitopes
Kanai R, Kar K, Anthony K, Gould LH, Ledizet M, Fikrig E, Marasco WA, Koski RA, Modis Y. Crystal Structure of West Nile Virus Envelope Glycoprotein Reveals Viral Surface Epitopes. Journal Of Virology 2006, 80: 11000-11008. PMID: 16943291, PMCID: PMC1642136, DOI: 10.1128/jvi.01735-06.Peer-Reviewed Original ResearchConceptsWest Nile virus-specific antibodiesEnvelope glycoproteinTick-borne encephalitis virusWest Nile Virus Envelope GlycoproteinLife-threatening encephalitisVirus-specific antibodiesWest Nile virusMajor envelope glycoproteinAntiviral vaccinesVirus envelope glycoproteinDengue virusEncephalitis virusFlavivirus genusViral attachmentReceptor bindingWest NileTherapeutic antibodiesMolecular landscapeNile virusVirusSurface epitopesE proteinViruses e.Viral surfaceVirus surface
2005
A recombinant envelope protein vaccine against West Nile virus
Ledizet M, Kar K, Foellmer HG, Wang T, Bushmich SL, Anderson JF, Fikrig E, Koski RA. A recombinant envelope protein vaccine against West Nile virus. Vaccine 2005, 23: 3915-3924. PMID: 15917113, DOI: 10.1016/j.vaccine.2005.03.006.Peer-Reviewed Original Research
2002
A Recombinant Envelope Protein-Based Enzyme-Linked Immunosorbent Assay for West Nile Virus Serodiagnosis
Wang T, Magnarelli LA, Anderson JF, Gould LH, Bushmich SL, Wong SJ, Fikrig E. A Recombinant Envelope Protein-Based Enzyme-Linked Immunosorbent Assay for West Nile Virus Serodiagnosis. Vector-Borne And Zoonotic Diseases 2002, 2: 105-109. PMID: 12653304, DOI: 10.1089/153036602321131904.Peer-Reviewed Original Research
2001
West Nile Virus Envelope Protein
WANG T, ANDERSON J, MAGNARELLI L, BUSHMICH S, WONG S, KOSKI R, FIKRIG E. West Nile Virus Envelope Protein. Annals Of The New York Academy Of Sciences 2001, 951: 325-327. PMID: 11797789, DOI: 10.1111/j.1749-6632.2001.tb02708.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, ViralHumansMiceMice, Inbred C3HRecombinant ProteinsViral Envelope ProteinsWest Nile FeverWest Nile virusConceptsWest Nile virus envelope proteinVirus envelope proteinWest Nile virus infectionRole of antibodiesE proteinEnvelope proteinWest Nile virusPassive immunizationHumoral responseWest Nile virus E proteinVirus infectionVirus E proteinNile virusProtein serumInfectionAntibodiesRecombinant formPatientsImmunizationProteinMiceDiagnosisImmunitySerumImmunization of Mice Against West Nile Virus with Recombinant Envelope Protein
Wang T, Anderson J, Magnarelli L, Wong S, Koski R, Fikrig E. Immunization of Mice Against West Nile Virus with Recombinant Envelope Protein. The Journal Of Immunology 2001, 167: 5273-5277. PMID: 11673542, DOI: 10.4049/jimmunol.167.9.5273.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, ViralImmunizationMiceMice, Inbred C3HRecombinant ProteinsVaccines, SyntheticViral Envelope ProteinsViral VaccinesWest Nile virusConceptsWN virus infectionRecombinant E proteinWest Nile virusVirus infectionC3H/HeN miceE proteinNile virusImmunization of miceRecombinant envelope proteinsPassive administrationCandidate vaccinesHeN miceFatal encephalitisImmunization experimentsImmunoblot assayWN virusInfectionVirus isolatesEnvelope proteinProtein antiserumVirusMiceEncephalitisPatientsImmunization