2024
CCR2+ monocytes are dispensable to resolve acute pulmonary Pseudomonas aeruginosa infections in WT and Cystic Fibrosis mice
Öz H, Braga C, Gudneppanavar R, Di Pietro C, Huang P, Zhang P, Krause D, Egan M, Murray T, Bruscia E. CCR2+ monocytes are dispensable to resolve acute pulmonary Pseudomonas aeruginosa infections in WT and Cystic Fibrosis mice. Journal Of Leukocyte Biology 2024, qiae218. PMID: 39365279, DOI: 10.1093/jleuko/qiae218.Peer-Reviewed Original ResearchLung tissue damageCystic fibrosisTissue damageMonocyte recruitmentImmune responsePulmonary Pseudomonas aeruginosa infectionHyper-inflammatory immune responseCystic fibrosis micePropagate tissue damagePseudomonas aeruginosaLungs of patientsChronic neutrophilic inflammationImmunological response to infectionHost immune responseMonocyte-derived macrophagesTarget monocyte recruitmentSite of injuryResponse to infectionCFTR modulatorsPA infectionChronic inflammatory disease conditionsReduced bactericidal activityAdjunctive therapyClinical outcomesEradicate infectionChronic lung inflammation disrupts the quiescent state of hematopoietic stem cells in a cystic fibrosis mouse model
Braga C, Mancuso R, Thompson E, Oez H, Gudneppanavar R, Zhang P, Huang P, Murray T, Egan M, Krause D, Bruscia E. Chronic lung inflammation disrupts the quiescent state of hematopoietic stem cells in a cystic fibrosis mouse model. The Journal Of Immunology 2024, 212: 0062_6002-0062_6002. DOI: 10.4049/jimmunol.212.supp.0062.6002.Peer-Reviewed Original ResearchHematopoietic stem cellsChronic lung inflammationLung inflammationCystic fibrosisBone marrowQuiescent state of HSCsProgression of CF lung diseaseResponse to airway infectionWT hematopoietic stem cellsExpansion of HSCsMultipotent progenitorsCystic fibrosis mouse modelStem cellsCF lung diseasePathways associated with proliferationNeutrophilic lung inflammationPro-inflammatory signatureFibrosis mouse modelATAC-sequencing analysisAirway infectionBM cellsMyeloid lineageLung diseaseMouse modelInflammationEzrin drives adaptation of monocytes to the inflamed lung microenvironment.
Gudneppanavar R, Di Pietro C, Oez H, Zhang P, Huang P, Braga C, Tebaldi T, Biancon G, Kim C, Gonzalez A, Halene S, Krause D, Egan M, Gupta N, Murray T, Bruscia E. Ezrin drives adaptation of monocytes to the inflamed lung microenvironment. The Journal Of Immunology 2024, 212: 0078_5418-0078_5418. DOI: 10.4049/jimmunol.212.supp.0078.5418.Peer-Reviewed Original ResearchRNA-seqActin-binding protein ezrinF-actin distributionImmune response to bacteriaCystic fibrosisIn vitro functional studiesResponse to bacteriaIncreased expression of pro-inflammatory markersCytoskeleton rearrangementF-actinResponse to lung infectionExpressed genesProtein ezrinTranscriptional profilesExpression of pro-inflammatory markersPlasma membranePro-inflammatory markersFunctional studiesEzrinLung extracellular matrixCF miceExtracellular matrixWT micePI3K/Akt signalingLung infection
2022
Recruited monocytes/macrophages drive pulmonary neutrophilic inflammation and irreversible lung tissue remodeling in cystic fibrosis
Öz H, Cheng E, Di Pietro C, Tebaldi T, Biancon G, Zeiss C, Zhang P, Huang P, Esquibies S, Britto C, Schupp J, Murray T, Halene S, Krause D, Egan M, Bruscia E. Recruited monocytes/macrophages drive pulmonary neutrophilic inflammation and irreversible lung tissue remodeling in cystic fibrosis. Cell Reports 2022, 41: 111797. PMID: 36516754, PMCID: PMC9833830, DOI: 10.1016/j.celrep.2022.111797.Peer-Reviewed Original ResearchConceptsC motif chemokine receptor 2Monocytes/macrophagesLung tissue damageCystic fibrosisTissue damageCF lungPulmonary neutrophilic inflammationPro-inflammatory environmentChemokine receptor 2CF lung diseaseNumber of monocytesSpecific therapeutic agentsGrowth factor βCF transmembrane conductance regulatorLung hyperinflammationLung neutrophiliaNeutrophilic inflammationNeutrophil inflammationInflammation contributesLung damageNeutrophil recruitmentLung diseaseLung tissueReceptor 2Therapeutic targetRecruitment of monocytes primed to express heme oxygenase-1 ameliorates pathological lung inflammation in cystic fibrosis
Di Pietro C, Öz HH, Zhang PX, Cheng EC, Martis V, Bonfield TL, Kelley TJ, Jubin R, Abuchowski A, Krause DS, Egan ME, Murray TS, Bruscia EM. Recruitment of monocytes primed to express heme oxygenase-1 ameliorates pathological lung inflammation in cystic fibrosis. Experimental & Molecular Medicine 2022, 54: 639-652. PMID: 35581352, PMCID: PMC9166813, DOI: 10.1038/s12276-022-00770-8.Peer-Reviewed Original ResearchConceptsHeme oxygenase-1Cystic fibrosisOxygenase-1Myeloid differentiation factor 88Neutrophilic pulmonary inflammationChronic airway infectionDifferentiation factor 88HO-1 levelsDisease mouse modelPseudomonas aeruginosaRecruitment of monocytesResolution of inflammationMonocytes/macrophagesTreatment of CFConditional knockout miceMechanism of actionLung neutrophiliaNeutrophilic inflammationLung inflammationAirway infectionPulmonary diseasePulmonary inflammationFactor 88Lung damageProinflammatory cytokinesBacterial Surface Detachment during Nebulization with Contaminated Reusable Home Nebulizers
Harris JC, Collins MS, Huang PH, Schramm CM, Nero T, Yan J, Murray TS. Bacterial Surface Detachment during Nebulization with Contaminated Reusable Home Nebulizers. Microbiology Spectrum 2022, 10: e02535-21. PMID: 35107362, PMCID: PMC8809330, DOI: 10.1128/spectrum.02535-21.Peer-Reviewed Original ResearchConceptsAlbuterol nebulizationNebulized therapyHome nebulizersCystic fibrosisChronic respiratory diseasesAerosolized medicationsLung infectionCF patientsRespiratory diseasePathogenic bacteriaPatientsNext Generation ImpactorClinical isolatesMedicationsLungPari LCTherapyAnonymous patientsClinical bacteriaNebulizationNebulizerAerosolizationPathogenic microbesDetachmentSubset of bacteria
2020
Targeting the Heme Oxygenase 1/Carbon Monoxide Pathway to Resolve Lung Hyper-Inflammation and Restore a Regulated Immune Response in Cystic Fibrosis
Di Pietro C, Öz HH, Murray TS, Bruscia EM. Targeting the Heme Oxygenase 1/Carbon Monoxide Pathway to Resolve Lung Hyper-Inflammation and Restore a Regulated Immune Response in Cystic Fibrosis. Frontiers In Pharmacology 2020, 11: 1059. PMID: 32760278, PMCID: PMC7372134, DOI: 10.3389/fphar.2020.01059.Peer-Reviewed Original ResearchCF lung diseaseCarbon monoxide pathwayCystic fibrosisImmune responseHO-1Lung diseaseInflammatory responseMonoxide pathwayBacterial infectionsHost defenseHO-1/CO pathwayOxidative stressDefective host defenseRegulated immune responseEndogenous HO-1Non-resolving inflammationBactericidal activityHO-1 activationHO-1 inductionCF lung tissueContinuous tissue damagePotential cellular mechanismsPersistent bacterial infectionsMonocytes/MΦsBactericidal mediators
2019
Nebulizer cleaning and disinfection practices in families with cystic fibrosis: The relationship between attitudes, practice and microbe colonization
Murray TS, O'Rourke TK, Feinn R, Drapeau G, Collins MS. Nebulizer cleaning and disinfection practices in families with cystic fibrosis: The relationship between attitudes, practice and microbe colonization. Journal Of Cystic Fibrosis 2019, 18: 823-828. PMID: 31126899, DOI: 10.1016/j.jcf.2019.05.008.Peer-Reviewed Original ResearchConceptsInfection control practicesInfection preventionCystic fibrosisHome respiratory equipmentComplexity of careHome health careInfection control behaviorsControl practicesRespiratory equipmentHome nebulizersNew educational interventionDaily burdenHealth maintenanceLung pathogensEducation interventionRecovery of organismsEducational interventionHealth carePreventionMicrobe colonizationCareDisinfection practicesFibrosisFrequency of disinfectionSubset of families
2018
Repeated hot water and steam disinfection of Pari LC Plus® nebulizers alter nebulizer output
Collins MS, O'Brien M, Schramm CM, Murray TS. Repeated hot water and steam disinfection of Pari LC Plus® nebulizers alter nebulizer output. Journal Of Cystic Fibrosis 2018, 18: 233-235. PMID: 30224332, DOI: 10.1016/j.jcf.2018.08.005.Peer-Reviewed Original Research
2016
The Approach to Pseudomonas aeruginosa in Cystic Fibrosis
Talwalkar JS, Murray TS. The Approach to Pseudomonas aeruginosa in Cystic Fibrosis. Clinics In Chest Medicine 2016, 37: 69-81. PMID: 26857769, DOI: 10.1016/j.ccm.2015.10.004.BooksConceptsCystic fibrosisAcute pulmonary exacerbationsDuration of administrationSpecific patient characteristicsStandard of careSite of carePseudomonas aeruginosaPulmonary exacerbationsAntipseudomonal antibioticsPatient characteristicsTreatment optionsEpidemiologic linkChronic infectionHigh prevalenceTreatment decisionsNew vaccinesEarly identificationAggressive useFibrosisAntibiotic selectionInfectionCareLaboratory methodsAeruginosaExacerbationSinus Disease in Cystic Fibrosis
Collins M, Murray T, Rizzi M. Sinus Disease in Cystic Fibrosis. 2016, 121-133. DOI: 10.1007/978-3-319-21744-4_9.Peer-Reviewed Original ResearchSinus diseaseCystic fibrosisSurgical interventionMulti-drug resistant organismsAggressive medical managementOtolaryngology referralRefractory diseaseCommon indicationMedical managementNasal polypsPatient outcomesSurgical techniqueCommon inherited diseaseResistant organismsDiseaseJudicious usePatientsInherited diseaseFibrosisInterventionSurgeryReferralPolypsCaucasians
2007
Pseudomonas aeruginosa chronic colonization in cystic fibrosis patients
Murray TS, Egan M, Kazmierczak BI. Pseudomonas aeruginosa chronic colonization in cystic fibrosis patients. Current Opinion In Pediatrics 2007, 19: 83-88. PMID: 17224667, DOI: 10.1097/mop.0b013e3280123a5d.Peer-Reviewed Original ResearchConceptsCystic fibrosis patientsChronic colonizationAcute infectionFibrosis patientsCystic fibrosisP. aeruginosaChronic pulmonary colonizationChronic pulmonary diseaseCystic fibrosis airwayHost immune systemMucoid P. aeruginosaP. aeruginosa behaviorCystic fibrosis lungPulmonary diseaseClinical benefitChronic infectionP. aeruginosa pathogenesisLeading causePulmonary colonizationNew therapiesImmune systemAggressive usePotential therapeuticsInfectionPatients