2019
Elevated Activation of Neutrophil Toll-Like Receptors in Patients with Acute Severe Leptospirosis: An Observational Study.
Lindow JC, Tsay AJ, Montgomery RR, Reis EAG, Wunder EA, Araújo G, Nery NRR, Mohanty S, Shaw AC, Lee PJ, Reis MG, Ko AI. Elevated Activation of Neutrophil Toll-Like Receptors in Patients with Acute Severe Leptospirosis: An Observational Study. American Journal Of Tropical Medicine And Hygiene 2019, 101: 585-589. PMID: 31333152, PMCID: PMC6726964, DOI: 10.4269/ajtmh.19-0160.Peer-Reviewed Original ResearchConceptsSevere leptospirosisActivation markersDisease severityNeutrophil Toll-like receptorToll-like receptor 2Acute severe leptospirosisHospitalized leptospirosis patientsNeutrophil activation markersEarly immune responseToll-like receptorsSevere disease outcomesHigh initial bacterial loadFebrile infectionsOrgan dysfunctionLeptospirosis patientsPeripheral neutrophilsNeutrophil responseHealthy controlsImmune mechanismsDisease outcomeObservational studyImmune responseSevere diseaseReceptor 2Tissue damage
2017
AGE-RELATED CHANGES IN INNATE IMMUNE CELL FUNCTION
Montgomery R. AGE-RELATED CHANGES IN INNATE IMMUNE CELL FUNCTION. Innovation In Aging 2017, 1: 1254-1254. PMCID: PMC6183893, DOI: 10.1093/geroni/igx004.4559.Peer-Reviewed Original ResearchInnate immune cellsImmune cellsInnate immune cell functionLevels of TLR5Natural killer cellsToll-like receptorsImmune cell functionAge-associated decreasePotential therapeutic opportunitiesAge-related changesVaccine responsesKiller cellsVaccine strategiesOlder donorsImmune functionOlder subjectsTherapeutic opportunitiesInfectious diseasesProgressive declinePrimary humanCell functionMass cytometrySurface expressionReduced levelsReduced production
2016
Age-related alterations in immune responses to West Nile virus infection
Montgomery R. Age-related alterations in immune responses to West Nile virus infection. Clinical & Experimental Immunology 2016, 187: 26-34. PMID: 27612657, PMCID: PMC5167051, DOI: 10.1111/cei.12863.Peer-Reviewed Original ResearchConceptsWest Nile virusToll-like receptorsDendritic cellsSevere diseaseBlood-brain barrier permeabilityImportant public health concernWest Nile virus infectionHuman dendritic cellsNatural killer cellsAnti-viral responseMonocytes/macrophagesPathogen recognition receptorsAge-related alterationsSpecific immune parametersPublic health concernImportant causative agentAge-related impairmentIndividual host factorsAge-related changesKiller cellsViral encephalitisImmune cellsRisk factorsBarrier permeabilityHigh prevalenceCoordinated expression of tyro3, axl, and mer receptors in macrophage ontogeny
Malawista A, Wang X, Trentalange M, Allore HG, Montgomery RR. Coordinated expression of tyro3, axl, and mer receptors in macrophage ontogeny. Macrophage 2016, 3: e1261. PMID: 27695708, PMCID: PMC5040214, DOI: 10.14800/macrophage.1261.Peer-Reviewed Original ResearchTAM receptorsTherapeutic interventionsTAM receptor expressionPro-inflammatory cytokinesToll-like receptorsPotential therapeutic interventionsSignificant differencesMacrophage ontogenyUpregulation of expressionTriple-mutant miceLymphoproliferative disordersHomologous receptor tyrosine kinasesTAM expressionReceptor expressionM receptorMutant miceHuman macrophagesMonocytesReceptor tyrosine kinasesMacrophagesAxlProtein levelsReceptorsTyro3Human subjects
2014
Innate Immune Responses in the Neutrophils of Community Dwelling and Nursing Home Elders
Juthani-Mehta M, Guo X, Shaw AC, Towle V, Ning Y, Wang X, Allore HG, Fikrig E, Montgomery RR. Innate Immune Responses in the Neutrophils of Community Dwelling and Nursing Home Elders. Journal Of Aging Science 2014, 02 PMID: 25750929, PMCID: PMC4348001, DOI: 10.4172/2329-8847.1000115.Peer-Reviewed Original ResearchNursing home residentsΒ2-integrin expressionToll-like receptorsHome residentsInnate immune responseImmune responseIntegrin CD11bDisabled nursing home residentsIntegrin expressionΒ2 integrin CD11bLevels of chemokinesObservational pilot studyArea nursing homesNursing home eldersLocomotion of neutrophilsTLR4 responseChemokine inductionInfectious disease susceptibilityCommunity dwellingCommunity dwellersNursing homesEfficiency of neutrophilsNeutrophilsUnstimulated neutrophilsFlow cytometry
2012
Impaired Toll-Like Receptor 3-Mediated Immune Responses from Macrophages of Patients Chronically Infected with Hepatitis C Virus
Qian F, Bolen CR, Jing C, Wang X, Zheng W, Zhao H, Fikrig E, Bruce RD, Kleinstein SH, Montgomery RR. Impaired Toll-Like Receptor 3-Mediated Immune Responses from Macrophages of Patients Chronically Infected with Hepatitis C Virus. MSphere 2012, 20: 146-155. PMID: 23220997, PMCID: PMC3571267, DOI: 10.1128/cvi.00530-12.Peer-Reviewed Original ResearchMeSH KeywordsAdultFemaleGene ExpressionGenotypeHepacivirusHepatitis C, ChronicHumansInflammationInterferon-betaInterferonsInterleukinsLeukocytes, MononuclearMacrophagesMalePhosphorylationPolymorphism, Single NucleotideSignal TransductionSTAT1 Transcription FactorToll-Like Receptor 3Tumor Necrosis Factor-alphaViral LoadConceptsToll-like receptor 3Peripheral blood mononuclear cellsHepatitis C virusImmune responseHCV patientsC virusExpression of TLR3Clearance of HCVCommon chronic blood-borne infectionElevated innate immune responseImpaired toll-like receptorPrimary macrophagesHCV genotype 1Ongoing inflammatory responseMajority of patientsBlood-borne infectionsBlood mononuclear cellsToll-like receptorsIFN response genesPotential therapeutic approachInnate immune responseMacrophages of patientsElevated baseline expressionTLR3 pathwayViral clearanceInnate Immune Function by Toll-like Receptors: Distinct Responses in Newborns and the Elderly
Kollmann TR, Levy O, Montgomery RR, Goriely S. Innate Immune Function by Toll-like Receptors: Distinct Responses in Newborns and the Elderly. Immunity 2012, 37: 771-783. PMID: 23159225, PMCID: PMC3538030, DOI: 10.1016/j.immuni.2012.10.014.Peer-Reviewed Original ResearchConceptsInnate immune functionEnd of lifeImmune functionReceptor-mediated immune responsesInnate cytokine responsesToll-like receptorsMonths of lifeInnate immune systemHost-environment interactionsClinical patternCytokine responsesExcessive inflammationImmune developmentParticular infectionImmune responseImmune systemRisk periodOlder adultsSimilar patternDevelopmental patternsResponseInflammationNewbornsInfantsInfectionQuantitative imaging of lineage-specific Toll-like receptor-mediated signaling in monocytes and dendritic cells from small samples of human blood.
Qian F, Montgomery RR. Quantitative imaging of lineage-specific Toll-like receptor-mediated signaling in monocytes and dendritic cells from small samples of human blood. Journal Of Visualized Experiments 2012 PMID: 22525943, PMCID: PMC3466655, DOI: 10.3791/3741.Peer-Reviewed Original ResearchConceptsToll-like receptorsDendritic cellsImmune responseToll-like receptor-mediated signalingCell-mediated immune responsesCertain Toll-like receptorsAntigen-presenting cellsPeripheral blood monocytesHealthy human donorsNF-κB pathwayInnate immune systemReceptor-mediated signalingQuantitative flow cytometryTLR levelsWest Nile virusPatient susceptibilityUnderstanding of immunosenescenceImmune responsivenessElderly donorsLarge cohortOlder donorsAdaptive immunityBlood monocytesNF-κBTherapeutic interventions
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
2010
Dysregulation of human Toll-like receptor function in aging
Shaw AC, Panda A, Joshi SR, Qian F, Allore HG, Montgomery RR. Dysregulation of human Toll-like receptor function in aging. Ageing Research Reviews 2010, 10: 346-353. PMID: 21074638, PMCID: PMC3633557, DOI: 10.1016/j.arr.2010.10.007.Peer-Reviewed Original ResearchConceptsToll-like receptorsTLR functionImmune systemToll-like receptor functionPattern recognition receptor familyAge-associated dysregulationInnate immune systemGeriatric patientsTLR activationAnimal modelsContext of agingReceptor functionHuman cohortsInfectious diseasesReceptor familyInappropriate persistenceDysregulationRecent studiesOverarching themesAdaptive responseMorbidityImmunosenescencePatientsCohortInnate