2008
Drak2 Contributes to West Nile Virus Entry into the Brain and Lethal Encephalitis
Wang S, Welte T, McGargill M, Town T, Thompson J, Anderson JF, Flavell RA, Fikrig E, Hedrick SM, Wang T. Drak2 Contributes to West Nile Virus Entry into the Brain and Lethal Encephalitis. The Journal Of Immunology 2008, 181: 2084-2091. PMID: 18641347, PMCID: PMC2494872, DOI: 10.4049/jimmunol.181.3.2084.Peer-Reviewed Original ResearchConceptsT cellsWNV infectionIFN-gamma-producing T cellsWest Nile virus entryWNV-infected miceExperimental autoimmune encephalomyelitisLethal WNV infectionBlood-brain barrierGroups of miceDeath-associated protein familyWild-type miceAutoimmune encephalomyelitisWest Nile virusViral AgViral loadBrain barrierViral levelsLethal encephalitisPeripheral tissuesB cellsSystemic infectionMiceInfectionVirus entryBrainMatrix Metalloproteinase 9 Facilitates West Nile Virus Entry into the Brain
Wang P, Dai J, Bai F, Kong KF, Wong SJ, Montgomery RR, Madri JA, Fikrig E. Matrix Metalloproteinase 9 Facilitates West Nile Virus Entry into the Brain. Journal Of Virology 2008, 82: 8978-8985. PMID: 18632868, PMCID: PMC2546894, DOI: 10.1128/jvi.00314-08.Peer-Reviewed Original ResearchConceptsMatrix metalloproteinase-9Blood-brain barrierWest Nile virusWNV entryMetalloproteinase-9MMP9 expressionWNV infectionIntact blood-brain barrierBlood-brain barrier permeabilityBrain viral loadWest Nile virus entryEvans blue leakageMosquito-borne encephalitisWest Nile encephalitisLethal WNV challengeWild-type miceCentral nervous systemType IV collagen degradationPeripheral viremiaViral loadLeukocyte infiltrateInflammatory cytokinesLikely multifactorialBarrier permeabilityHost cytokinesDysregulation 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 differencesICAM-1 Participates in the Entry of West Nile Virus into the Central Nervous System
Dai J, Wang P, Bai F, Town T, Fikrig E. ICAM-1 Participates in the Entry of West Nile Virus into the Central Nervous System. Journal Of Virology 2008, 82: 4164-4168. PMID: 18256150, PMCID: PMC2292986, DOI: 10.1128/jvi.02621-07.Peer-Reviewed Original ResearchConceptsWest Nile virusICAM-1Control animalsWest Nile virus neuroinvasionBlood-brain barrier leakagePathogenesis of encephalitisNile virusBlood-brain barrierLow viral loadWest Nile encephalitisCentral nervous systemICAM-1 participatesVirus neuroinvasionNeuronal damageLeukocyte infiltrationViral encephalitisViral loadBarrier leakageViral infectionNervous systemEncephalitisMiceICAMVirusAnimals
2007
Abrogation of macrophage migration inhibitory factor decreases West Nile virus lethality by limiting viral neuroinvasion
Arjona A, Foellmer HG, Town T, Leng L, McDonald C, Wang T, Wong SJ, Montgomery RR, Fikrig E, Bucala R. Abrogation of macrophage migration inhibitory factor decreases West Nile virus lethality by limiting viral neuroinvasion. Journal Of Clinical Investigation 2007, 117: 3059-3066. PMID: 17909632, PMCID: PMC1994625, DOI: 10.1172/jci32218.Peer-Reviewed Original ResearchConceptsMacrophage migration inhibitory factorMigration inhibitory factorViral neuroinvasionWest Nile virusInvolvement of MIFInhibitory factorProinflammatory cytokine macrophage migration inhibitory factorCytokine macrophage migration inhibitory factorWNV-infected miceBlood-brain barrierLife-threatening encephalitisWild-type miceAcute WNV infectionFlavivirus West Nile virusMIF expressionMIF levelsViral loadWNV encephalitisMIF actionPharmacotherapeutic approachesInflammatory responseWNV infectionCerebrospinal fluidSusceptible individualsInnate immunity
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 virus
2004
Toll-like receptor 3 mediates West Nile virus entry into the brain causing lethal encephalitis
Wang T, Town T, Alexopoulou L, Anderson JF, Fikrig E, Flavell RA. Toll-like receptor 3 mediates West Nile virus entry into the brain causing lethal encephalitis. Nature Medicine 2004, 10: 1366-1373. PMID: 15558055, DOI: 10.1038/nm1140.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisBlood-Brain BarrierBrainEncephalitisImmunohistochemistryInflammationMembrane GlycoproteinsMiceMice, Inbred C57BLMice, KnockoutMicroscopy, FluorescencePermeabilityReceptors, Cell SurfaceSignal TransductionToll-Like Receptor 3Toll-Like ReceptorsTumor Necrosis Factor-alphaViral LoadWest Nile virusConceptsToll-like receptor 3West Nile virusWNV infectionViral loadInflammatory responseReceptor 3Blood-brain barrier compromiseTLR3-deficient miceWest Nile virus entryLethal WNV infectionBlood-brain barrierWild-type miceNeuronal injuryIntracerebroventricular administrationBrain infectionCytokine productionBrain penetrationTumor necrosisTLR3 stimulationLethal encephalitisBarrier compromiseVariable severityInfectionVirus entryNile virus