2012
Effect of vitamin C deficiency during postnatal development on adult behavior: functional phenotype of Gulo(−/−) knockout mice
Chen Y, Curran C, Nebert D, Patel K, Williams M, Vorhees C. Effect of vitamin C deficiency during postnatal development on adult behavior: functional phenotype of Gulo(−/−) knockout mice. Genes Brain & Behavior 2012, 11: 269-277. PMID: 22296218, PMCID: PMC3325330, DOI: 10.1111/j.1601-183x.2011.00762.x.Peer-Reviewed Original ResearchConceptsGulo-/- miceBiosynthesis of ascorbateImportant cellular antioxidantAscorbate deficiencyL-gulono-γ-lactone oxidaseAmount of ascorbateGULO geneRate-limiting enzymeReactive oxygen speciesAerobic respirationAbnormal behavioral phenotypesMetabolic processesVitamin CCellular antioxidantsSupplemental vitamin CFunctional phenotypeOxygen speciesVitamin C deficiencyWild-type littermatesMild motor deficitsSpeciesBehavioral phenotypesPhenotypeDopamine agonistsMotor deficits
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