2014
Anaplasma phagocytophilum surface protein AipA mediates invasion of mammalian host cells
Seidman D, Ojogun N, Walker NJ, Mastronunzio J, Kahlon A, Hebert KS, Karandashova S, Miller DP, Tegels BK, Marconi RT, Fikrig E, Borjesson DL, Carlyon JA. Anaplasma phagocytophilum surface protein AipA mediates invasion of mammalian host cells. Cellular Microbiology 2014, 16: 1133-1145. PMID: 24612118, PMCID: PMC4115035, DOI: 10.1111/cmi.12286.Peer-Reviewed Original ResearchConceptsGranulocytic anaplasmosisObligate intracellular bacteriumVivo infectionInfectionPhagocytophilum infectionTransmission feedingObligate intracellular pathogensInfected ticksIntracellular pathogensNon-phagocytic cellsIntracellular bacteriumHL-60 cellsHost cell invasionCell invasionAnaplasma phagocytophilumPeptide-specific antiserumOwn uptakeHost cellsAttractive targetInternalization stepMammalian cellsInvasion proteinsSurface proteinsCell morphotypesCells
2012
Anaplasma phagocytophilum Asp14 Is an Invasin That Interacts with Mammalian Host Cells via Its C Terminus To Facilitate Infection
Kahlon A, Ojogun N, Ragland SA, Seidman D, Troese MJ, Ottens AK, Mastronunzio JE, Truchan HK, Walker NJ, Borjesson DL, Fikrig E, Carlyon JA. Anaplasma phagocytophilum Asp14 Is an Invasin That Interacts with Mammalian Host Cells via Its C Terminus To Facilitate Infection. Infection And Immunity 2012, 81: 65-79. PMID: 23071137, PMCID: PMC3536139, DOI: 10.1128/iai.00932-12.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnaplasma phagocytophilumAnimalsBacterial Outer Membrane ProteinsBinding SitesCell AdhesionCell Line, TumorEhrlichiaEhrlichiosisGene Expression Regulation, BacterialGlutathione TransferaseHL-60 CellsHumansMembrane GlycoproteinsMembrane ProteinsMiceMolecular Sequence DataProtein BindingProtein Structure, TertiaryProteomeSequence Analysis, ProteinTranscription, GeneticUp-RegulationConceptsMammalian host cellsHost cellsReticulate cellsOuter membrane protein candidatesSurface proteinsOuter membrane protein AMembrane protein AA. phagocytophilum-infected ticksObligate intracellular bacteriumA. phagocytophilumGlutathione S-transferaseTranscriptional profilingSurface proteomeC-terminusAffinity purificationFamily AnaplasmataceaeProtein candidatesSelective biotinylationCellular invasionAsp14Transmission feedingAmino acidsS-transferaseIntracellular bacteriumP-selectin glycoprotein ligand-1Postgenomic Analyses Reveal Development of Infectious Anaplasma phagocytophilum during Transmission from Ticks to Mice
Mastronunzio JE, Kurscheid S, Fikrig E. Postgenomic Analyses Reveal Development of Infectious Anaplasma phagocytophilum during Transmission from Ticks to Mice. Journal Of Bacteriology 2012, 194: 2238-2247. PMID: 22389475, PMCID: PMC3347074, DOI: 10.1128/jb.06791-11.Peer-Reviewed Original ResearchConceptsOpen reading frameA. phagocytophilum genomeObligate intracellular bacteriaBlood-feeding arthropodsCell surface proteinsMammalian cell cultureRickettsiales orderUncharacterized proteinsRibosomal proteinsEssential proteinsTranscriptome sequencingBacterial adaptationA. phagocytophilumDNA replicationTick salivary glandsPostgenomic analysisReading frameMammalian hostsAnaplasma phagocytophilumDevelopmental transitionsDC-specific markerIntracellular bacteriaTransmission feedingSurface proteinsProtein
2001
Inhibition of Borrelia burgdorferi-Tick Interactions In Vivo by Outer Surface Protein A Antibody
Pal U, Montgomery R, Lusitani D, Voet P, Weynants V, Malawista S, Lobet Y, Fikrig E. Inhibition of Borrelia burgdorferi-Tick Interactions In Vivo by Outer Surface Protein A Antibody. The Journal Of Immunology 2001, 166: 7398-7403. PMID: 11390491, DOI: 10.4049/jimmunol.166.12.7398.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnti-Bacterial AgentsAntibodies, BacterialAntibodies, MonoclonalAntigens, SurfaceBacterial Outer Membrane ProteinsBacterial VaccinesBinding Sites, AntibodyBorrelia burgdorferi GroupDigestive SystemEpitopesFemaleImmune SeraInjections, IntraperitonealInjections, SubcutaneousIxodesLipoproteinsLyme DiseaseLyme Disease VaccinesMiceMice, SCIDMutationProtein Structure, TertiaryRecombinant ProteinsConceptsB. burgdorferi sensu strictoBurgdorferi sensu strictoB. burgdorferi N40Treatment of miceOuter Surface ProteinsB. burgdorferi sensu lato genospeciesSurface protein AOuter surface protein ASCID miceMurine modelB. burgdorferi attachmentLyme diseaseMiceB. burgdorferiBorrelia afzeliiB. afzeliiTick gutBorrelia gariniiOspAVivoAdherenceAntiserumPresent studySurface proteinsGut
1997
Borrelia burgdorferi genes selectively expressed in ticks and mammals
de Silva AM, Fikrig E. Borrelia burgdorferi genes selectively expressed in ticks and mammals. Trends In Parasitology 1997, 13: 267-270. PMID: 15275064, DOI: 10.1016/s0169-4758(97)01074-0.Peer-Reviewed Original ResearchLyme disease vaccineTick-borne infectionsDisease vaccineHuman trialsSpirochete Borrelia burgdorferiDifferent surface proteinsLyme diseaseBorrelia burgdorferiLyme disease bacteriumBorrelia burgdorferi genesDisease bacteriumSurface proteinsRecent studiesDifferential gene expressionLife styleGene expressionVaccineInfectionDisease
1995
Safety and Immunogenicity of an Outer Surface Protein A Vaccine in Subjects with Previous Lyme Disease
Schoen R, Meurice F, Brunet C, Cretella S, Krause D, Craft J, Fikrig E. Safety and Immunogenicity of an Outer Surface Protein A Vaccine in Subjects with Previous Lyme Disease. The Journal Of Infectious Diseases 1995, 172: 1324-1329. PMID: 7594671, DOI: 10.1093/infdis/172.5.1324.Peer-Reviewed Original ResearchMeSH KeywordsAdultAntibodies, BacterialAntibody FormationAntigens, SurfaceBacterial Outer Membrane ProteinsBacterial VaccinesBorrelia burgdorferi GroupDose-Response Relationship, DrugEnzyme-Linked Immunosorbent AssayHumansImmunization ScheduleImmunoglobulin GLipoproteinsLyme DiseaseProspective StudiesSafetyVaccines, SyntheticConceptsSide effectsLyme diseaseOspA vaccinePrevious Lyme diseaseThree-dose scheduleLocal side effectsSystemic side effectsLyme vaccineMild arthralgiaVaccine doseThird doseProspective studyOspA antibodiesHealthy volunteersOuter surface proteinsVaccinePatientsDiseaseImmunogenicityDoseMonthsSubjectsSurface proteinsSafetyArthralgiaLyme Disease in Human DR4Dw4-Transgenic Mice
Feng S, Barthold S, Bockenstedt L, Zaller D, Fikrig E. Lyme Disease in Human DR4Dw4-Transgenic Mice. The Journal Of Infectious Diseases 1995, 172: 286-289. PMID: 7797933, DOI: 10.1093/infdis/172.1.286.Peer-Reviewed Original ResearchConceptsDR4 transgenic miceChronic Lyme arthritisLyme arthritisGroups of miceHigh antibody titersHLA-DR4 allelesB. burgdorferiControl miceMajor histocompatibility complex class II genesAntibody titersArthritisOuter surface proteinsClass II genesLyme diseaseMiceDay 120Beta 1 domainsAlpha 1Equal severityBorrelia burgdorferiMouse IBurgdorferiHuman alpha 1DiseaseSurface proteinsOral vaccination with an attenuated Salmonella typhimurium strain expressing Borrelia burgdorferi OspA prevents murine Lyme borreliosis
Dunne M, al-Ramadi BK, Barthold SW, Flavell RA, Fikrig E. Oral vaccination with an attenuated Salmonella typhimurium strain expressing Borrelia burgdorferi OspA prevents murine Lyme borreliosis. Infection And Immunity 1995, 63: 1611-1614. PMID: 7890431, PMCID: PMC173199, DOI: 10.1128/iai.63.4.1611-1614.1995.Peer-Reviewed Original ResearchConceptsAnti-OspA antibodyMurine Lyme borreliosisDevelopment of antibodiesMajor outer surface proteinsSalmonella typhimurium strainsOral vaccinationIntradermal challengeMouse modelAttenuated strainOuter surface proteinsHigh titersLyme borreliosisLyme diseaseBorrelia burgdorferiTyphimurium strainsCausative agentDiseaseAntibodiesSurface proteinsSalmonella typhimuriumGavageVaccinationMiceTitersBorreliosis
1994
A chromosomal Borrelia burgdorferi gene encodes a 22-kilodalton lipoprotein, P22, that is serologically recognized in Lyme disease
Lam TT, Nguyen TP, Fikrig E, Flavell RA. A chromosomal Borrelia burgdorferi gene encodes a 22-kilodalton lipoprotein, P22, that is serologically recognized in Lyme disease. Journal Of Clinical Microbiology 1994, 32: 876-883. PMID: 8027338, PMCID: PMC263156, DOI: 10.1128/jcm.32.4.876-883.1994.Peer-Reviewed Original ResearchConceptsLate-stage diseaseLyme diseaseOuter surface proteinsEarly-stage diseaseExamination of seraErythema migransSurface proteinsPulsed-field gel electrophoresisPatientsEtiologic agentDiseaseBorrelia burgdorferiB. burgdorferiAntibodiesLipoproteinBorrelia burgdorferi genesSerumBurgdorferiShort amino terminusOuter surface proteins E and F of Borrelia burgdorferi, the agent of Lyme disease
Lam TT, Nguyen TP, Montgomery RR, Kantor FS, Fikrig E, Flavell RA. Outer surface proteins E and F of Borrelia burgdorferi, the agent of Lyme disease. Infection And Immunity 1994, 62: 290-298. PMID: 8262642, PMCID: PMC186099, DOI: 10.1128/iai.62.1.290-298.1994.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAntigens, BacterialBacterial Outer Membrane ProteinsBacterial ProteinsBase SequenceBlotting, WesternBorrelia burgdorferi GroupCloning, MolecularCodonFluorescent Antibody TechniqueGenes, BacterialHumansLipoproteinsLyme DiseaseMolecular Sequence DataMolecular WeightOperonRegulatory Sequences, Nucleic AcidRestriction MappingSequence AlignmentSequence Homology, Nucleic AcidSolubilityConceptsOspE genesMolecular massSignal peptidase IIConsensus cleavage sequenceTranscriptional unitsLeader sequenceCommon promoterBp downstreamOuter surface proteinsProtein EStop codonSurface lipoproteinsLabeling showBorrelia burgdorferiGenesHydrophobic domainCleavage sequenceSurface proteinsAmino acidsPeptidase IIProteinOuter surface protein EGel electrophoresisNucleotidesImmunofluorescence studies
1993
Evasion of protective immunity by Borrelia burgdorferi by truncation of outer surface protein B.
Fikrig E, Tao H, Kantor FS, Barthold SW, Flavell RA. Evasion of protective immunity by Borrelia burgdorferi by truncation of outer surface protein B. Proceedings Of The National Academy Of Sciences Of The United States Of America 1993, 90: 4092-4096. PMID: 7683420, PMCID: PMC46452, DOI: 10.1073/pnas.90.9.4092.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAntibodiesAntibodies, MonoclonalAntigens, BacterialAntigens, SurfaceBacterial Outer Membrane ProteinsBase SequenceBorrelia burgdorferi GroupCloning, MolecularCodonEpitopesEscherichia coliFemaleFluorescent Antibody TechniqueGenes, BacterialHumansLyme DiseaseMiceMice, Inbred C3HPolymerase Chain ReactionRecombinant Fusion ProteinsRecombinant ProteinsRestriction MappingTicksVaccines, SyntheticViral VaccinesConceptsProtective immune responseVaccination immunityProtective immunityProtective antibodiesAntibody responseImmune destructionImmune responseHost defenseOuter surface proteinsLyme diseaseOuter surface protein BBorrelia burgdorferiCausative agentOspBMicePolyclonal antibodiesImmunityAntibodiesPresent studyStrain B31Surface proteinsProtein BPrevious studiesVaccinationOspB.A monoclonal antibody to OspA inhibits association of Borrelia burgdorferi with human endothelial cells
Comstock LE, Fikrig E, Shoberg RJ, Flavell RA, Thomas DD. A monoclonal antibody to OspA inhibits association of Borrelia burgdorferi with human endothelial cells. Infection And Immunity 1993, 61: 423-431. PMID: 7678585, PMCID: PMC302746, DOI: 10.1128/iai.61.2.423-431.1993.Peer-Reviewed Original ResearchConceptsEndothelial cellsB. burgdorferiMonoclonal antibodiesInhibitory effectHUVE cellsBorrelia burgdorferiCultured human umbilical vein endothelial cellsNorth American strainsLevel of adherenceHuman umbilical vein endothelial cellsUmbilical vein endothelial cellsInhibition of adherenceImmunoglobulin G fractionVein endothelial cellsHuman endothelial cellsSurface proteinsAmerican strainsOspA epitopeOuter surface proteinsInhibitory actionPenetration assayMAbsG fractionAntibodiesBurgdorferi
1992
Serologic Diagnosis of Lyme Disease using Recombinant Outer Surface Proteins A and Band Flagellin
Fikrig E, Huguenel E, Berland R, Rahn D, Hardin J, Flavell R. Serologic Diagnosis of Lyme Disease using Recombinant Outer Surface Proteins A and Band Flagellin. The Journal Of Infectious Diseases 1992, 165: 1127-1132. PMID: 1583333, DOI: 10.1093/infdis/165.6.1127.Peer-Reviewed Original ResearchConceptsLyme diseaseRecombinant outer surface proteinRecombinant outer surface protein AB. burgdorferi antigensSurface protein AOuter surface protein AEarly diseaseLate diseaseSerologic diagnosisDiagnostic testingOuter surface proteinsImmunogenic regionPatientsDiseaseBorrelia burgdorferiELISAImmunoblotAntibodiesSurface proteinsFlagellinProtein AAntigenDiagnosis