2009
Early onset senescence occurs when fibroblasts lack the glutamate–cysteine ligase modifier subunit
Chen Y, Johansson E, Fan Y, Shertzer HG, Vasiliou V, Nebert DW, Dalton TP. Early onset senescence occurs when fibroblasts lack the glutamate–cysteine ligase modifier subunit. Free Radical Biology And Medicine 2009, 47: 410-418. PMID: 19427898, PMCID: PMC2773044, DOI: 10.1016/j.freeradbiomed.2009.05.003.Peer-Reviewed Original ResearchMeSH KeywordsAcetylcysteineAnimalsBeta-GalactosidaseCell Culture TechniquesCell CycleCell Growth ProcessesCellular SenescenceCyclin-Dependent Kinase Inhibitor p21DNA DamageFemaleFetusFibroblastsFree Radical ScavengersGlutamate-Cysteine LigaseGlutathioneMiceMice, Inbred C57BLMice, KnockoutPregnancyProtein SubunitsReactive Oxygen SpeciesTumor Suppressor Protein p53ConceptsGlutamate-cysteine ligasePremature senescenceCellular redox environmentCellular antioxidant glutathionePrimary murine fibroblastsSenescence-associated beta-galactosidase activityCell cycle arrestInduction of p53Beta-galactosidase activityPrevents premature senescenceCatalytic subunitCellular senescenceGrowth arrestGlutamate cysteine ligase modifierModifier subunitP21 proteinPhysiological roleSenescenceDNA damageRedox environmentCycle arrestMurine fibroblastsGSH synthesisN-acetylcysteine increasesPrimary cells
2005
Butylhydroquinone Protects Cells Genetically Deficient in Glutathione Biosynthesis from Arsenite-Induced Apoptosis Without Significantly Changing Their Prooxidant Status
Kann S, Estes C, Reichard JF, Huang MY, Sartor MA, Schwemberger S, Chen Y, Dalton TP, Shertzer HG, Xia Y, Puga A. Butylhydroquinone Protects Cells Genetically Deficient in Glutathione Biosynthesis from Arsenite-Induced Apoptosis Without Significantly Changing Their Prooxidant Status. Toxicological Sciences 2005, 87: 365-384. PMID: 16014739, DOI: 10.1093/toxsci/kfi253.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisArsenitesBlotting, WesternCell SurvivalCells, CulturedDNA, ComplementaryElectrophoretic Mobility Shift AssayFibroblastsGene Expression RegulationGlutamate-Cysteine LigaseGlutathioneHydroquinonesMiceMice, KnockoutNF-kappa BOligonucleotide Array Sequence AnalysisOxidantsOxidative StressRNATetrazolium SaltsThiazolesConceptsMouse embryo fibroblastsGlutathione biosynthesisGlobal gene expression profilesAntioxidant responseCell cycle regulationArsenite-induced apoptosisEffective antioxidant responseArsenic-induced apoptosisGene expression profilesExpression of genesGlutamate-cysteine ligaseOxidative stressProtein biosynthesisRole of glutathioneCycle regulationRate-limiting enzymeGene deregulationExpression profilesArsenic-induced oxidative stressEmbryo fibroblastsInduces oxidative stressModifier subunitApoptotic deathDNA damageToxicity of arsenic
2002
Initial Characterization of the Glutamate-Cysteine Ligase Modifier Subunit Gclm(−/−) Knockout Mouse NOVEL MODEL SYSTEM FOR A SEVERELY COMPROMISED OXIDATIVE STRESS RESPONSE*
Yang Y, Dieter MZ, Chen Y, Shertzer HG, Nebert DW, Dalton TP. Initial Characterization of the Glutamate-Cysteine Ligase Modifier Subunit Gclm(−/−) Knockout Mouse NOVEL MODEL SYSTEM FOR A SEVERELY COMPROMISED OXIDATIVE STRESS RESPONSE*. Journal Of Biological Chemistry 2002, 277: 49446-49452. PMID: 12384496, DOI: 10.1074/jbc.m209372200.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAllelesAnimalsBlotting, NorthernBlotting, SouthernBody WeightCell DeathChromatography, GelCysteineDose-Response Relationship, DrugFibroblastsGenotypeGlutamate-Cysteine LigaseGlutamic AcidGlutathioneHomozygoteHydrogen PeroxideImmunoblottingKidneyKineticsLiverMiceMice, KnockoutModels, GeneticMutagenesis, Site-DirectedOxidative StressOxygenPhenotypePolymerase Chain ReactionProtein Structure, TertiaryTime FactorsTissue DistributionConceptsGlutamate-cysteine ligaseModifier subunitGSH biosynthesis pathwayGlutamate-cysteine ligase modifier subunitOxidative stress responseGCL holoenzymeHigher eukaryotesBiosynthesis pathwayCellular functionsCatalytic subunitNovel model systemRate-limiting enzymeNumerous pathophysiological conditionsNull allelesStress responseOvert phenotypeGCL activityOxidant insultSubunitsFetal fibroblastsChronic GSH depletionInitial characterizationHoloenzymeGSH inhibitionGSH depletion