2022
Glutathione reactivity with aliphatic polyisocyanates
Wisnewski AV, Liu J. Glutathione reactivity with aliphatic polyisocyanates. PLOS ONE 2022, 17: e0271471. PMID: 35839242, PMCID: PMC9286259, DOI: 10.1371/journal.pone.0271471.Peer-Reviewed Original ResearchConceptsHexamethylene diisocyanateAliphatic polyisocyanatesReaction productsMS/MSTandem MS/MSReversed-phase LC-MSPositive ion modeMajor reaction productsLiquid chromatography-coupled mass spectrometryCoupled-mass spectrometryPolymeric formulationsIon modeGlutathione reactivityFragmentation patternsGSH reactivityS linkageO groupLC-MSPolyisocyanatesIonsIsocyanate productsDiisocyanateImportant productsReactivityMS
2019
Dilysine-Methylene Diphenyl Diisocyanate (MDI), a Urine Biomarker of MDI Exposure?
Wisnewski AV, Nassar AF, Liu J, Bello D. Dilysine-Methylene Diphenyl Diisocyanate (MDI), a Urine Biomarker of MDI Exposure? Chemical Research In Toxicology 2019, 32: 557-565. PMID: 30724074, PMCID: PMC6465083, DOI: 10.1021/acs.chemrestox.8b00262.Peer-Reviewed Original ResearchConceptsRespiratory tract exposureMDI exposureUrine biomarkersSkin exposureUrine of miceFuture translational investigationsWestern blot studiesUrinary biomarkersRespiratory tractExposure surveillanceTranslational investigationsDisease preventionMDI conjugatesMiceUrineBiomarkersCollision-induced dissociation (CID) fragmentation patternsExposureUnderstanding pathwaysMDIIndustrial hygieneAlbuminMS/MSTractPrevention
2016
Identification of novel reaction products of methylene-bis-phenylisocyanate (“MDI”) with oxidized glutathione in aqueous solution and also during incubation of MDI with a murine hepatic S9 fraction
Wisnewski AV, Liu J, Nassar AF. Identification of novel reaction products of methylene-bis-phenylisocyanate (“MDI”) with oxidized glutathione in aqueous solution and also during incubation of MDI with a murine hepatic S9 fraction. Toxicology In Vitro 2016, 36: 97-104. PMID: 27453132, PMCID: PMC5010927, DOI: 10.1016/j.tiv.2016.07.011.Peer-Reviewed Original Research
2015
In vitro cleavage of diisocyanate-glutathione conjugates by human gamma-glutamyl transpeptidase-1
Wisnewski AV, Liu J, Nassar AF. In vitro cleavage of diisocyanate-glutathione conjugates by human gamma-glutamyl transpeptidase-1. Xenobiotica 2015, 46: 726-732. PMID: 26678254, PMCID: PMC4848134, DOI: 10.3109/00498254.2015.1118576.Peer-Reviewed Original ResearchGlutathione Reaction Products with a Chemical Allergen, Methylene-diphenyl Diisocyanate, Stimulate Alternative Macrophage Activation and Eosinophilic Airway Inflammation
Wisnewski AV, Liu J, Colangelo CM. Glutathione Reaction Products with a Chemical Allergen, Methylene-diphenyl Diisocyanate, Stimulate Alternative Macrophage Activation and Eosinophilic Airway Inflammation. Chemical Research In Toxicology 2015, 28: 729-737. PMID: 25635619, PMCID: PMC4667722, DOI: 10.1021/tx5005002.Peer-Reviewed Original ResearchConceptsEosinophilic inflammatory responseAlternative macrophage activationInflammatory responseChemical allergensMacrophage activationAirway eosinophil numbersEosinophilic airway inflammationInnate immune responseGreater inflammatory responseAirway levelsMDI conjugationAirway inflammationOccupational asthmaIL-12MDI exposureAsthma pathogenesisEosinophil numbersNaïve miceAirway fluidRespiratory tractImmune responseMucus productionSkin exposureMDI conjugatesVivo evidence
2013
Connecting glutathione with immune responses to occupational methylene diphenyl diisocyanate exposure
Wisnewski AV, Liu J, Redlich CA. Connecting glutathione with immune responses to occupational methylene diphenyl diisocyanate exposure. Chemico-Biological Interactions 2013, 205: 38-45. PMID: 23791970, PMCID: PMC3767171, DOI: 10.1016/j.cbi.2013.06.005.Peer-Reviewed Original Research
2012
Hexamethylene diisocyanate (HDI) vapor reactivity with glutathione and subsequent transfer to human albumin
Wisnewski AV, Mhike M, Hettick JM, Liu J, Siegel PD. Hexamethylene diisocyanate (HDI) vapor reactivity with glutathione and subsequent transfer to human albumin. Toxicology In Vitro 2012, 27: 662-671. PMID: 23178851, PMCID: PMC3587365, DOI: 10.1016/j.tiv.2012.11.013.Peer-Reviewed Original ResearchConceptsHDI vaporCommon occupational allergensRespiratory tract exposureHuman albuminLevels of GSHReaction productsGSH concentrationVapor exposureIntra-molecular cyclizationClinical responseOccupational allergensAsthma pathogenesisPolyclonal rabbit serumAirway fluidSerologic assaysLower GSH concentrationsVivo reactivityRabbit serumPotential mechanismsGlutathione reactivityMass spectrometryExposureReactivityGSH solutionKey step
2005
Glutathione protects human airway proteins and epithelial cells from isocyanates
Wisnewski AV, Liu Q, Liu J, Redlich CA. Glutathione protects human airway proteins and epithelial cells from isocyanates. Clinical & Experimental Allergy 2005, 35: 352-357. PMID: 15784115, DOI: 10.1111/j.1365-2222.2005.02185.x.Peer-Reviewed Original ResearchConceptsDose-dependent mannerAirway fluidGSH levelsHuman airway epithelial cellsVapor exposure systemEpithelial cellsHuman airway epithelial cell lineAirway epithelial cell lineEpithelial lining fluidAirway epithelial cellsEpithelial cell exposureEpithelial cell toxicityAllergic sensitizationEpithelial cell lineHDI exposureAirway proteinsLining fluidAirway cellsIsocyanate exposureVivo exposureOccupational limitsNCI-H292Physiologic levelsEpithelial fluidToxicity studies