2018
The Zinc-Metallothionein Redox System Reduces Oxidative Stress in Retinal Pigment Epithelial Cells
Rodríguez-Menéndez S, García M, Fernández B, Álvarez L, Fernández-Vega-Cueto A, Coca-Prados M, Pereiro R, González-Iglesias H. The Zinc-Metallothionein Redox System Reduces Oxidative Stress in Retinal Pigment Epithelial Cells. Nutrients 2018, 10: 1874. PMID: 30513827, PMCID: PMC6315569, DOI: 10.3390/nu10121874.Peer-Reviewed Original ResearchConceptsRetinal pigment epitheliumOxidative stressRetinal pigment epithelial cellsOxidative damagePre-treated cellsInduces oxidative stressPigment epithelial cellsNon-treated cellsReactive oxygen intermediatesΜM of zincPigment epitheliumRPE cellsZn-MTProtective mechanismEpithelial cellsFree radical generatorMT levelsAAPH treatmentOxygen intermediates
2017
Quantitative distribution of Zn, Fe and Cu in the human lens and study of the Zn–metallothionein redox system in cultured lens epithelial cells by elemental MS
González-Iglesias H, Petrash C, Rodríguez-Menéndez S, García M, Álvarez L, Fernández-Vega Cueto L, Fernández B, Pereiro R, Sanz-Medel A, Coca-Prados M. Quantitative distribution of Zn, Fe and Cu in the human lens and study of the Zn–metallothionein redox system in cultured lens epithelial cells by elemental MS. Journal Of Analytical Atomic Spectrometry 2017, 32: 1746-1756. DOI: 10.1039/c6ja00431h.Peer-Reviewed Original ResearchLens epithelial cellsMolecular mass proteinsMass proteinsCultured human lens epithelial cellsHigh molecular mass proteinsEpithelial cellsCultured lens epithelial cellsHuman lens epithelial cellsHuman lensOxidative cellular damageLocalization of ZnEndogenous stressorsImportant enzymeMT proteinCellular distributionLens epithelial cell layerProteinRedox systemEpithelial cell layerElemental mass spectrometryCellular damageMetallothioneinOxidative stressHuman lensesCells
2013
Metallothioneins (MTs) in the human eye: a perspective article on the zinc–MT redox cycle
Gonzalez-Iglesias H, Alvarez L, García M, Petrash C, Sanz-Medel A, Coca-Prados M. Metallothioneins (MTs) in the human eye: a perspective article on the zinc–MT redox cycle. Metallomics 2013, 6: 201-208. PMID: 24419560, DOI: 10.1039/c3mt00298e.Peer-Reviewed Original ResearchConceptsCellular zinc homeostasisOxidative damageAntioxidant functionMT genesMultiple isoformsReactive oxygen speciesPotential oxidative damageDe novo synthesisZinc homeostasisAntioxidant defense mechanismsMain regulatorDefense mechanismsNovo synthesisProtein expressionOxygen speciesExogenous zincZn7-MTMetallothioneinOxidative stressMT complexZinc releaseStoichiometric transitionsZinc-MTPro-inflammatory cytokinesLevels of metallothionein
2005
Selective Upregulation of the A3 Adenosine Receptor in Eyes with Pseudoexfoliation Syndrome and Glaucoma
Schlötzer-Schrehardt U, Zenkel M, Decking U, Haubs D, Kruse FE, Jünemann A, Coca-Prados M, Naumann GO. Selective Upregulation of the A3 Adenosine Receptor in Eyes with Pseudoexfoliation Syndrome and Glaucoma. Investigative Ophthalmology & Visual Science 2005, 46: 2023-2034. PMID: 15914619, DOI: 10.1167/iovs.04-0915.Peer-Reviewed Original ResearchMeSH KeywordsAdenosineAgedAged, 80 and overAnterior Eye SegmentAqueous HumorBlotting, NorthernCell Culture TechniquesChromatography, High Pressure LiquidExfoliation SyndromeGlaucoma, Angle-ClosureGlaucoma, Open-AngleHumansHypoxanthineImmunohistochemistryIn Situ HybridizationInosineReceptor, Adenosine A3Reverse Transcriptase Polymerase Chain ReactionRNA, MessengerUp-RegulationXanthineConceptsControl eyesLevels of adenosineA3 adenosine receptorAdenosine receptorsPEX eyesPseudoexfoliation syndromeIntraocular pressureAqueous humor secretionCiliary epitheliumEpithelial cellsNonpigmented epithelial cellsOxidative stressGlaucomatous control eyesAngle-closure glaucomaNormal control eyesHypoxia-induced upregulationAdenosine receptor expressionAqueous humor samplesAnterior segment tissuesAqueous humor dynamicsNonpigmented ciliary epitheliumA3 receptor mRNAEffects of hypoxiaAdenosine receptor subtypesNonpigmented ciliary epithelial cells
1993
Cloning of the Bovine Plasma Selenium-Dependent Glutathione Peroxidase (GP) cDNA from the Ocular Ciliary Epithelium: Expression of the Plasma and Cellular Forms within the Mammalian Eye1
Martín-Alonso J, Ghosh S, Coca-Prados M. Cloning of the Bovine Plasma Selenium-Dependent Glutathione Peroxidase (GP) cDNA from the Ocular Ciliary Epithelium: Expression of the Plasma and Cellular Forms within the Mammalian Eye1. The Journal Of Biochemistry 1993, 114: 284-291. PMID: 8262911, DOI: 10.1093/oxfordjournals.jbchem.a124168.Peer-Reviewed Original ResearchConceptsOcular ciliary epitheliumGlutathione peroxidase cDNAMammalian eyeCorresponding amino acid sequencesDifferential gene expressionOpen reading frameAmino acid sequenceBovine glutathione peroxidasePeroxidase cDNAMolecular cloningOverall identityReading frameHuman GPxAcid sequenceGene expressionCellular formCiliary epitheliumFunctional roleAmino acidsTranscriptsOxidative damageGlutathione peroxidaseCloningOxidative stressExpression