2012
The GTPase Activity of FlhF Is Dispensable for Flagellar Localization, but Not Motility, in Pseudomonas aeruginosa
Schniederberend M, Abdurachim K, Murray TS, Kazmierczak BI. The GTPase Activity of FlhF Is Dispensable for Flagellar Localization, but Not Motility, in Pseudomonas aeruginosa. Journal Of Bacteriology 2012, 195: 1051-1060. PMID: 23264582, PMCID: PMC3571332, DOI: 10.1128/jb.02013-12.Peer-Reviewed Original ResearchConceptsFlagellar functionGTPase activityOpportunistic human pathogen Pseudomonas aeruginosaHuman pathogen Pseudomonas aeruginosaSignal recognition particlePathogen Pseudomonas aeruginosaSingle-cell assaysFlhF proteinFlagellar localizationFlagellar assemblyRecognition particleAbiotic environmentProtein dimerizationFlagellar rotationNucleotide bindingFlhFPoint mutantsSurface organellesSwimming motilityBacterial motilityP. aeruginosaBacillus subtilisPseudomonas aeruginosaEnzymatic activityHydrolytic activityChronic versus Acute Pseudomonas aeruginosa Infection States
Kazmierczak B, Murray T. Chronic versus Acute Pseudomonas aeruginosa Infection States. 2012, 21-39. DOI: 10.1128/9781555818524.ch2.Peer-Reviewed Original ResearchVirulence factorsChronic Pseudomonas aeruginosa infectionFactor expressionPseudomonas aeruginosa infectionVirulence factor expressionP. aeruginosaAcute infectionChronic infectionAeruginosa infectionAnimal modelsMost bacterial pathogensAMP expressionInfectionInfection stateMucoid strainsBacterial pathogensHost-pathogen interactionsHost cellsExpressionEctopic expressionAeruginosaFactorsThe Ability of Virulence Factor Expression by Pseudomonas aeruginosa to Predict Clinical Disease in Hospitalized Patients
Ledizet M, Murray TS, Puttagunta S, Slade MD, Quagliarello VJ, Kazmierczak BI. The Ability of Virulence Factor Expression by Pseudomonas aeruginosa to Predict Clinical Disease in Hospitalized Patients. PLOS ONE 2012, 7: e49578. PMID: 23152923, PMCID: PMC3495863, DOI: 10.1371/journal.pone.0049578.Peer-Reviewed Original ResearchConceptsP. aeruginosa infectionAeruginosa infectionBacterial factorsHospitalized patientsUrinary tractPositive P. aeruginosa culturesP. aeruginosaUrinary tract cathetersP. aeruginosa isolatesLogistic regression modelsPseudomonas aeruginosaProspective cohortDiabetes mellitusSubgroup analysisClinical dataTreatment decisionsClinical diseaseAeruginosa isolatesAnimal modelsPatientsClinical sitesFactor expressionInfectionHost factorsP. aeruginosa culturesThe Carbon Monoxide Releasing Molecule CORM-2 Attenuates Pseudomonas aeruginosa Biofilm Formation
Murray TS, Okegbe C, Gao Y, Kazmierczak BI, Motterlini R, Dietrich LE, Bruscia EM. The Carbon Monoxide Releasing Molecule CORM-2 Attenuates Pseudomonas aeruginosa Biofilm Formation. PLOS ONE 2012, 7: e35499. PMID: 22563385, PMCID: PMC3338523, DOI: 10.1371/journal.pone.0035499.Peer-Reviewed Original ResearchConceptsCORM-2 treatmentP. aeruginosa lung infectionP. aeruginosaAeruginosa lung infectionCORM-2Clinical P. aeruginosaMolecule CORM-2Current antimicrobial agentsChronic infectionLung infectionNew therapiesRelated infectionsNon-mucoid strainsReactive oxygen speciesInfectionNovel therapeutic propertiesTherapeutic propertiesAntimicrobial agentsAdditive effectPseudomonas aeruginosaBiofilm formationOxygen speciesTreatmentAeruginosa
2010
Swarming motility, secretion of type 3 effectors and biofilm formation phenotypes exhibited within a large cohort of Pseudomonas aeruginosa clinical isolates
Murray TS, Ledizet M, Kazmierczak BI. Swarming motility, secretion of type 3 effectors and biofilm formation phenotypes exhibited within a large cohort of Pseudomonas aeruginosa clinical isolates. Journal Of Medical Microbiology 2010, 59: 511-520. PMID: 20093376, PMCID: PMC2855384, DOI: 10.1099/jmm.0.017715-0.Peer-Reviewed Original Research
2009
Pseudomonas aeruginosa OspR is an oxidative stress sensing regulator that affects pigment production, antibiotic resistance and dissemination during infection
Lan L, Murray TS, Kazmierczak BI, He C. Pseudomonas aeruginosa OspR is an oxidative stress sensing regulator that affects pigment production, antibiotic resistance and dissemination during infection. Molecular Microbiology 2009, 75: 76-91. PMID: 19943895, PMCID: PMC2881571, DOI: 10.1111/j.1365-2958.2009.06955.x.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SubstitutionAnimalsAnti-Bacterial Agentsbeta-Lactam Resistancebeta-LactamsFemaleGene DeletionGene Expression Regulation, BacterialGlutathione PeroxidaseHydrogen PeroxideMiceMice, Inbred C57BLModels, BiologicalMutagenesis, Site-DirectedOxidative StressPigments, BiologicalPneumoniaPseudomonas aeruginosaPseudomonas InfectionsQuorum SensingRepressor ProteinsSignal TransductionStress, PhysiologicalTyrosineVirulenceConceptsOxidative stress sensingCys-24Stress sensingPigment productionNull mutant strainOxidative stressSerine substitution mutantsGlobal regulatorPromoter DNASubstitution mutantsAdditional genesInside hostsQuorum sensingCys residuesMutant strainConstitutive expressionMultiple pathwaysRegulatory effectsBeta-lactam resistanceGenesSignificant inductionRegulatorTyrosine metabolismOSPRP. aeruginosa
2007
Pseudomonas aeruginosa Exhibits Sliding Motility in the Absence of Type IV Pili and Flagella
Murray TS, Kazmierczak BI. Pseudomonas aeruginosa Exhibits Sliding Motility in the Absence of Type IV Pili and Flagella. Journal Of Bacteriology 2007, 190: 2700-2708. PMID: 18065549, PMCID: PMC2293233, DOI: 10.1128/jb.01620-07.Peer-Reviewed Original ResearchPseudomonas 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
2006
FlhF Is Required for Swimming and Swarming in Pseudomonas aeruginosa
Murray TS, Kazmierczak BI. FlhF Is Required for Swimming and Swarming in Pseudomonas aeruginosa. Journal Of Bacteriology 2006, 188: 6995-7004. PMID: 16980502, PMCID: PMC1595508, DOI: 10.1128/jb.00790-06.Peer-Reviewed Original ResearchConceptsWild-type bacteriaAssembly of flagellaRod-shaped organismExpression of flagellinFlhF proteinFlagellar assemblyFlagellar genesFlagellar poleFlhFFlagellin expressionMonotrichous bacteriaDecreased transcriptionCell surfaceBacteria resultsBacteriaLiquid mediumTranscriptionFlagellaOrganismsProteinDifferent motility patternsAberrant placementPseudomonas aeruginosaMotilityExpressionAnalysis of FimX, a phosphodiesterase that governs twitching motility in Pseudomonas aeruginosa
Kazmierczak BI, Lebron MB, Murray TS. Analysis of FimX, a phosphodiesterase that governs twitching motility in Pseudomonas aeruginosa. Molecular Microbiology 2006, 60: 1026-1043. PMID: 16677312, PMCID: PMC3609419, DOI: 10.1111/j.1365-2958.2006.05156.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBacterial ProteinsCell MovementCyclic GMPEscherichia coli ProteinsFemaleFimbriae, BacterialHeLa CellsHumansMiceMice, Inbred C57BLPhosphoric Diester HydrolasesPhosphorus-Oxygen LyasesPneumonia, BacterialPoint MutationProtein Structure, TertiaryPseudomonas aeruginosaSequence DeletionVirulenceConceptsEAL domainBacterial poleGGDEF-EAL proteinsCyclic dimeric guanosine monophosphateDiguanylate cyclase activityPolar surface structuresType IV piliWild-type strainGGDEF domainDiguanylate cyclasesREC domainLocalization signalPilus assemblyGGDEFNon-polar sitesFimXSurface piliPseudomonas aeruginosaPhosphodiesterase activityBiofilm formationProteinMutantsPiliMotilityDomain
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