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
2008
Macrophages Directly Contribute to the Exaggerated Inflammatory Response in Cystic Fibrosis Transmembrane Conductance Regulator−/− Mice
Bruscia EM, Zhang PX, Ferreira E, Caputo C, Emerson JW, Tuck D, Krause DS, Egan ME. Macrophages Directly Contribute to the Exaggerated Inflammatory Response in Cystic Fibrosis Transmembrane Conductance Regulator−/− Mice. American Journal Of Respiratory Cell And Molecular Biology 2008, 40: 295-304. PMID: 18776130, PMCID: PMC2645527, DOI: 10.1165/rcmb.2008-0170oc.Peer-Reviewed Original ResearchConceptsExaggerated inflammatory responseExaggerated immune responseBone marrow-derived macrophagesIL-6Marrow-derived macrophagesCystic fibrosisCF miceKeratinocyte chemoattractantCytokine responsesInflammatory responseIL-1alphaImmune responseAlveolar macrophagesBronchoalveolar lavage fluidGranulocyte colony-stimulating factorNumber of neutrophilsChemoattractant protein-1CF lung diseaseElevated cytokine responseInnate immune systemImportant therapeutic targetCF mouse modelsPopulation of macrophagesColony-stimulating factorPseudomonas aeruginosa LPS