2025
Secretory leukocyte protease inhibitor influences periarticular joint inflammation in Borrelia burgdorferi-infected mice
Yu Q, Tang X, Hart T, Homer R, Belperron A, Bockenstedt L, Ring A, Nakamura A, Fikrig E. Secretory leukocyte protease inhibitor influences periarticular joint inflammation in Borrelia burgdorferi-infected mice. ELife 2025, 14: rp104913. PMID: 40392222, PMCID: PMC12092001, DOI: 10.7554/elife.104913.Peer-Reviewed Original ResearchConceptsSecretory leukocyte protease inhibitorJoint inflammationC57BL/6 miceHigher infection loadTick-borne infectionsWild-type control miceClinical manifestations of infectionDevelopment of Lyme arthritisElevated serum levelsExcessive pro-inflammatory responsesManifestations of infectionProtease inhibitorsPro-inflammatory responseAnkle joint tissueInfection loadPromote tissue repairAnti-inflammatory effectsSerum levelsPeriarticular swellingClinical manifestationsControl miceTibiotarsal jointMMP-8Lyme diseaseIL-6Secretory leukocyte protease inhibitor influences periarticular joint inflammation in Borrelia burgdorferi-infected mice
Yu Q, Tang X, Hart T, Homer R, Belperron A, Bockenstedt L, Ring A, Nakamura A, Fikrig E. Secretory leukocyte protease inhibitor influences periarticular joint inflammation in Borrelia burgdorferi-infected mice. ELife 2025, 14 DOI: 10.7554/elife.104913.4.Peer-Reviewed Original ResearchSecretory leukocyte protease inhibitorSLPI-deficient miceJoint inflammationC57BL/6 miceDeficient miceB. burgdorferiHigher infection loadTick-borne infectionsWild-type control miceDeficient C57BL/6 miceClinical manifestations of infectionDevelopment of Lyme arthritisElevated serum levelsExcessive pro-inflammatory responsesManifestations of infectionProtease inhibitorsPro-inflammatory responseAnkle joint tissueInfection loadPromote tissue repairAnti-inflammatory effectsSerum levelsPeriarticular swellingClinical manifestationsControl miceTick feeding or vaccination with tick antigens elicits immunity to the Ixodes scapularis exoproteome in guinea pigs and humans
Hart T, Cui Y, Telford S, Marín-López A, Calloway K, Dai Y, Matias J, DePonte K, Jaycox J, DeBlasio M, Hoornstra D, Belperron A, Cibichakravarthy B, Johnson E, Alameh M, Dwivedi G, Hovius J, Bockenstedt L, Weissman D, Ring A, Fikrig E. Tick feeding or vaccination with tick antigens elicits immunity to the Ixodes scapularis exoproteome in guinea pigs and humans. Science Translational Medicine 2025, 17: eads9207. PMID: 40138454, PMCID: PMC12067475, DOI: 10.1126/scitranslmed.ads9207.Peer-Reviewed Original ResearchConceptsTick antigensTick resistanceVector of tick-borne pathogensAcquired tick resistanceTick-borne pathogensIxodes scapularis</i>Tick feedingAntitick vaccinesDetectable antibody responseGuinea pigsTicksTick bitesAntigen cocktailPigsPrimary vectorFeedingAntibody responseHumoral responseImmunogen candidateAntigenLyme diseaseImmunoglobulin GRepeated exposureIxodesNorth America
2011
Age‐associated elevation in TLR5 leads to increased inflammatory responses in the elderly
Qian F, Wang X, Zhang L, Chen S, Piecychna M, Allore H, Bockenstedt L, Malawista S, Bucala R, Shaw AC, Fikrig E, Montgomery RR. Age‐associated elevation in TLR5 leads to increased inflammatory responses in the elderly. Aging Cell 2011, 11: 104-110. PMID: 22023165, PMCID: PMC3257374, DOI: 10.1111/j.1474-9726.2011.00759.x.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAgingExtracellular Signal-Regulated MAP KinasesFemaleHumansInflammationInterleukin-8MaleMiddle AgedMonocytesMultivariate AnalysisNF-kappa Bp38 Mitogen-Activated Protein KinasesPhosphorylationProtein TransportRNA, MessengerSignal TransductionToll-Like Receptor 5Tumor Necrosis Factor-alphaConceptsToll-like receptorsIL-8Multivariable mixed-effects modelsOlder individualsElevated IL-8Levels of TLR5Expression of TLR5Production of TNFAge-associated elevationAge-related decreaseDendritic cellsImmune responsivenessElderly donorsInflammatory responseImmune functionNF-κBTLR5Progressive declineMonocytesMixed effects modelsMAPK p38Significant increaseEffects modelAssociated increaseCritical mechanism
1997
Protective and Arthritis-Resolving Activity in Sera of Mice Infected with Borrelia burgdorferi
Barthold S, Feng S, Bockenstedt L, Fikrig E, Feen K. Protective and Arthritis-Resolving Activity in Sera of Mice Infected with Borrelia burgdorferi. Clinical Infectious Diseases 1997, 25: s9-s17. PMID: 9233658, DOI: 10.1086/516166.Peer-Reviewed Original ResearchConceptsImmune serumSyringe challengePassive protective activitySerum of miceArthritis resolutionHost-adapted spirochetesImmunocompetent miceJoint tissuesTissue transplantsProtective activityImmunodominant regionMiceSerumInfectionBorrelia burgdorferiB. burgdorferiRecombinant formBurgdorferiSpirochetesTissueChallenge inoculationCarditisTransplantSpirochetemiaAntigenLyme Borreliosis in Transgenic Mice Tolerant to OspA from Borrelia burgdorferi 25015
Fikrig E, Barthold S, Chen M, Tao H, Ali-Salaam P, Bockenstedt L, Flavell R. Lyme Borreliosis in Transgenic Mice Tolerant to OspA from Borrelia burgdorferi 25015. The Journal Of Infectious Diseases 1997, 175: 1000-1003. PMID: 9086169, DOI: 10.1086/513958.Peer-Reviewed Original ResearchConceptsTransgenic miceLyme borreliosisC3H/HeN miceTolerance of miceSurface protein ABorrelia burgdorferi outer surface protein ASignificant arthritisOuter surface protein ALyme arthritisProtective immunityNontransgenic littermatesHeN miceOspA antibodiesDisease pathogenesisMiceArthritisB. burgdorferi N40OspABorreliosisCellular responsesProtein AResponseImmunizationPathogenesisLittermates
1994
Reply
Fikrig E, Bockenstedt L, Barthold S, Chen M, Tao H, Ali-Salaam P, Telford S, Flavell R. Reply. The Journal Of Infectious Diseases 1994, 170: 500-500. DOI: 10.1093/infdis/170.2.500.Commentaries, Editorials and Letters
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