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 cellsCurcumin, quercetin, and tBHQ modulate glutathione levels in astrocytes and neurons: importance of the glutamate cysteine ligase modifier subunit
Lavoie S, Chen Y, Dalton TP, Gysin R, Cuénod M, Steullet P, Q. K. Curcumin, quercetin, and tBHQ modulate glutathione levels in astrocytes and neurons: importance of the glutamate cysteine ligase modifier subunit. Journal Of Neurochemistry 2009, 108: 1410-1422. PMID: 19183254, DOI: 10.1111/j.1471-4159.2009.05908.x.Peer-Reviewed Original ResearchMeSH KeywordsAnalysis of VarianceAnimalsAntioxidantsAstrocytesCell SurvivalCells, CulturedCerebral CortexCurcuminDose-Response Relationship, DrugEmbryo, MammalianEnzyme InhibitorsGene ExpressionGlutamate-Cysteine LigaseGlutathioneHydroquinonesMiceMice, Inbred C57BLMice, KnockoutNeuronsProtein SubunitsQuercetinUp-RegulationConceptsGlutamate-cysteine ligaseGCL activityRate-limiting synthesizing enzymeRedox regulatorCatalytic subunitGSH levelsGene expressionCysteine ligaseGlutamate cysteine ligase modifierModifier subunitCell deathCell typesGSH synthesisEnzymeNeurodegenerative diseasesCultured neuronsGCLMSubunitsMRNA levelsSynthesizing enzymesGSHLower GSHAbility of curcuminExpressionLigase