2009
Antibodies against a Tick Protein, Salp15, Protect Mice from the Lyme Disease Agent
Dai J, Wang P, Adusumilli S, Booth CJ, Narasimhan S, Anguita J, Fikrig E. Antibodies against a Tick Protein, Salp15, Protect Mice from the Lyme Disease Agent. Cell Host & Microbe 2009, 6: 482-492. PMID: 19917502, PMCID: PMC2843562, DOI: 10.1016/j.chom.2009.10.006.Peer-Reviewed Original ResearchConceptsArthropod-borne pathogensTick-borne BorreliaTick salivary proteinsTick proteinsB. burgdorferiLyme diseaseDisease agentsTick-borne illnessB. burgdorferi infectionLyme disease agentHuman vaccinesSalp15Infection of miceB. burgdorferi antigensMicrobial toxinsMammalian hostsBorrelia burgdorferiPathogensMechanism of actionBurgdorferi infectionProtect miceMedical importanceBurgdorferiProtective capacityMice
2008
The Tick Salivary Protein Salp15 Inhibits the Killing of Serum-Sensitive Borrelia burgdorferi Sensu Lato Isolates
Schuijt TJ, Hovius JW, van Burgel ND, Ramamoorthi N, Fikrig E, van Dam AP. The Tick Salivary Protein Salp15 Inhibits the Killing of Serum-Sensitive Borrelia burgdorferi Sensu Lato Isolates. Infection And Immunity 2008, 76: 2888-2894. PMID: 18426890, PMCID: PMC2446733, DOI: 10.1128/iai.00232-08.Peer-Reviewed Original ResearchConceptsComplement-mediated killingBurgdorferi-specific antibodiesBorrelia burgdorferiStrong protective effectSerum-sensitive isolatesNormal human serumBorrelia burgdorferi sensu latoBurgdorferi sensu latoProtective effectMembrane attack complexTick salivaLyme diseaseBorrelia burgdorferi sensu lato isolatesComplement complexI. scapularis Salp15B. burgdorferiSalp15Attack complexBurgdorferiHuman serumKillingSpirochetesIxodes scapularisIsolatesTicks
2007
Identification of Salp15 Homologues in Ixodes ricinus Ticks
Hovius JW, Ramamoorthi N, Veer C, de Groot KA, Nijhof AM, Jongejan F, van Dam AP, Fikrig E. Identification of Salp15 Homologues in Ixodes ricinus Ticks. Vector-Borne And Zoonotic Diseases 2007, 7: 296-303. PMID: 17896872, DOI: 10.1089/vbz.2006.0624.Peer-Reviewed Original ResearchConceptsSalp15 homologuesI. scapularis Salp15T cell activationDifferent Ixodes speciesAmino acid sequenceEntire amino acid sequenceSignal sequenceMammalian hostsProtein sequencesAcid sequenceC-terminusReverse transcriptase-polymerase chain reactionSensu strictoIxodes speciesSensu latoMajor vectorHomologuesB. burgdorferi sensu latoBorrelia speciesProteinSalp15Borrelia burgdorferi sensu strictoSpeciesI. ricinusBurgdorferi sensu strictoTick–host–pathogen interactions in Lyme borreliosis
Hovius JW, van Dam AP, Fikrig E. Tick–host–pathogen interactions in Lyme borreliosis. Trends In Parasitology 2007, 23: 434-438. PMID: 17656156, DOI: 10.1016/j.pt.2007.07.001.Peer-Reviewed Original ResearchConceptsVertebrate hostsB. burgdorferi survivalB. burgdorferi genesEnzootic life cycleSpirochete survivalGene productsB. burgdorferiArthropod vectorsGenesVector moleculesLife cycleDifferent environmentsHostBorrelia burgdorferiIxodes ticksTROSPATicksSpirochetal agentBurgdorferiLyme borreliosisMicrobesSalp15ExpressionSurvival
2006
Cutting Edge: CD4 Is the Receptor for the Tick Saliva Immunosuppressor, Salp15
Garg R, Juncadella IJ, Ramamoorthi N, Ashish, Ananthanarayanan SK, Thomas V, Rincón M, Krueger JK, Fikrig E, Yengo CM, Anguita J. Cutting Edge: CD4 Is the Receptor for the Tick Saliva Immunosuppressor, Salp15. The Journal Of Immunology 2006, 177: 6579-6583. PMID: 17082567, PMCID: PMC4302324, DOI: 10.4049/jimmunol.177.10.6579.Peer-Reviewed Original ResearchConceptsDownstream effector proteinsSrc kinase LckC-terminal residuesLipid raft reorganizationEffector proteinsKinase LckTyrosine phosphorylationMolecular basisExtracellular domainEarly stepsSalp15T cell activationSalivary proteinsCD4 coreceptorProteinCalcium fluxCell activationT cellsCellsLckRepressionPhosphorylationIL-2 productionResiduesCoreceptor
2002
Salp15, an Ixodes scapularis Salivary Protein, Inhibits CD4+ T Cell Activation
Anguita J, Ramamoorthi N, Hovius JW, Das S, Thomas V, Persinski R, Conze D, Askenase PW, Rincón M, Kantor FS, Fikrig E. Salp15, an Ixodes scapularis Salivary Protein, Inhibits CD4+ T Cell Activation. Immunity 2002, 16: 849-859. PMID: 12121666, DOI: 10.1016/s1074-7613(02)00325-4.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBase SequenceCalcium SignalingCD4-Positive T-LymphocytesCell DivisionDrosophilaFemaleInterleukin-2IxodesLymphocyte ActivationMiceMice, Inbred BALB CMolecular Sequence DataRabbitsRatsReceptors, Antigen, T-CellReceptors, Interleukin-2Salivary Proteins and PeptidesConceptsT cell activationVector-host interactionsI. scapularis salivaCell activationMolecular basisFunctional importanceTCR ligationSalp15ProteinSalivary proteinsTick salivaCalcium fluxIxodes scapularis salivaActivationArthropodsRepressionImmune responseLow productionPleiotropic propertiesHostInhibits CD4T cell-mediated immune responsesVivo