2016
Chitinase 3-Like 1 (Chil1) Regulates Survival and Macrophage-Mediated Interleukin-1β and Tumor Necrosis Factor Alpha during Pseudomonas aeruginosa Pneumonia
Marion CR, Wang J, Sharma L, Losier A, Lui W, Andrews N, Elias JA, Kazmierczak BI, Roy CR, Dela Cruz CS. Chitinase 3-Like 1 (Chil1) Regulates Survival and Macrophage-Mediated Interleukin-1β and Tumor Necrosis Factor Alpha during Pseudomonas aeruginosa Pneumonia. Infection And Immunity 2016, 84: 2094-2104. PMID: 27141083, PMCID: PMC4936356, DOI: 10.1128/iai.00055-16.Peer-Reviewed Original ResearchConceptsBone marrow-derived macrophagesTumor necrosis factor alphaExcessive IL-1β productionNecrosis factor alphaIL-1β productionWT miceAeruginosa pneumoniaFactor alphaChitinase 3Lung parenchymal damageHospital-acquired pneumoniaIL-13 receptor α2Pseudomonas aeruginosa pneumoniaP. aeruginosa pneumoniaDecreased survival timeStreptococcus pneumoniae infectionHost inflammatory responseP. aeruginosa infectionInterleukin-1β productionMarrow-derived macrophagesHost tissue damageP. aeruginosaHost tolerancePneumoniae infectionParenchymal damage
2006
Mutational Analysis of RetS, an Unusual Sensor Kinase-Response Regulator Hybrid Required for Pseudomonas aeruginosa Virulence
Laskowski MA, Kazmierczak BI. Mutational Analysis of RetS, an Unusual Sensor Kinase-Response Regulator Hybrid Required for Pseudomonas aeruginosa Virulence. Infection And Immunity 2006, 74: 4462-4473. PMID: 16861632, PMCID: PMC1539586, DOI: 10.1128/iai.00575-06.Peer-Reviewed Original ResearchConceptsType III secretion system proteinsSignal transduction domainsSecretion system proteinsUpregulation of genesPeriplasmic domainSensor kinaseReceiver domainTransmembrane domainRegulator proteinTransduction domainMutational analysisSignaling roleSystem proteinsReciprocal regulationPseudomonas aeruginosaRET activityBiofilm formationVirulence factorsOpportunistic pathogenT3SSProteinRET alleleRETP. aeruginosaKey roleAnalysis 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