2021
Knockdown of Claudin-19 in the Retinal Pigment Epithelium Is Accompanied by Slowed Phagocytosis and Increased Expression of SQSTM1
Liu F, Peng S, Adelman RA, Rizzolo LJ. Knockdown of Claudin-19 in the Retinal Pigment Epithelium Is Accompanied by Slowed Phagocytosis and Increased Expression of SQSTM1. Investigative Ophthalmology & Visual Science 2021, 62: 14-14. PMID: 33591357, PMCID: PMC7900869, DOI: 10.1167/iovs.62.2.14.Peer-Reviewed Original ResearchConceptsSequestosome 1/p62Photoreceptor outer segmentsInternalized photoreceptor outer segmentsOxidative stress responseApical junctional complexActivation of AMPKTransepithelial electrical resistanceFluorescence-activated cell sortingWestern blottingClaudin-19Expression of proteinsSteady-state levelsProtein kinaseFilamentous actinEffect of AMPStress responseQuantitative RT-PCRKnockdownPOS degradationAMPKJunctional complexesEnzymatic activityCell sortingExpression of metallothioneinProteasome inhibitors
2020
Partially Differentiated Neuroretinal Cells Promote Maturation of the Retinal Pigment Epithelium
Singh D, Chen X, Xia T, Ghiassi-Nejad M, Tainsh L, Adelman RA, Rizzolo LJ. Partially Differentiated Neuroretinal Cells Promote Maturation of the Retinal Pigment Epithelium. Investigative Ophthalmology & Visual Science 2020, 61: 9-9. PMID: 33151282, PMCID: PMC7671856, DOI: 10.1167/iovs.61.13.9.Peer-Reviewed Original ResearchConceptsRetinal pigment epitheliumRetinal progenitor cellsTransepithelial electrical resistanceNeurosensory retinaPigment epitheliumHuman fetal retinal pigment epitheliumRecoverin-positive cellsFetal retinal pigment epitheliumGanglion cell layerAbility of RPERPE signature genesRed/green opsinTranswell filter insertsStem cellsQuantitative RT-PCRGlial markersHuman stem cellsExpression of rhodopsinInterneuron markersBipolar cellsRetinal culturesRetinaRT-PCRProgenitor cellsPresumptive photoreceptorsRPE Polarity and Barrier Function
Rizzolo L. RPE Polarity and Barrier Function. 2020, 19-45. DOI: 10.1007/978-3-030-28384-1_2.ChaptersCell polarityEpithelial cell polarityPlasma membrane domainsTight junctionsBasolateral plasma membraneRPE polarityCellular processesMembrane domainsPlasma membraneMembrane transportersMembrane transportNeighboring cellsRPE phenotypeSemi-selective barrierProteinBarrier functionJunction proteinsRPE functionParacellular spaceOuter blood-retinal barrierVisual cycleTight junction proteinsTransepithelial electrical resistanceAsymmetric distributionDynamic interplay
2019
Stem cell-derived retinal pigment epithelium from patients with age-related macular degeneration exhibit reduced metabolism and matrix interactions
Gong J, Cai H, Team N, Noggle S, Paull D, Rizzolo LJ, Del Priore LV, Fields MA. Stem cell-derived retinal pigment epithelium from patients with age-related macular degeneration exhibit reduced metabolism and matrix interactions. Stem Cells Translational Medicine 2019, 9: 364-376. PMID: 31840941, PMCID: PMC7031648, DOI: 10.1002/sctm.19-0321.Peer-Reviewed Original ResearchConceptsExtracellular matrixIPSC-RPEMetabolic-related pathwaysComplement immune systemTransepithelial electrical resistanceRod photoreceptor outer segmentsPluripotent stem cellsAged Bruch's membraneCell-specific morphologyObserved phenotypeAltered extracellular matrixControl iPSCsMitochondrial respirationMitochondrial functionMatrix interactionsCell attachmentStem cellsTranscriptomePhotoreceptor outer segmentsDistinct clustersComplement genesRetinal pigment epitheliumGenesIPSCsMembrane
2015
TRP Channels Localize to Subdomains of the Apical Plasma Membrane in Human Fetal Retinal Pigment EpitheliumTRP Channels of Human Fetal RPE
Zhao PY, Gan G, Peng S, Wang SB, Chen B, Adelman RA, Rizzolo LJ. TRP Channels Localize to Subdomains of the Apical Plasma Membrane in Human Fetal Retinal Pigment EpitheliumTRP Channels of Human Fetal RPE. Investigative Ophthalmology & Visual Science 2015, 56: 1916-1923. PMID: 25736794, PMCID: PMC4364639, DOI: 10.1167/iovs.14-15738.Peer-Reviewed Original ResearchConceptsHuman fetal RPETRP channelsApical membraneFetal RPEApical plasma membraneCell-cell contactTransepithelial electrical resistanceTransient receptor potential channelsTight junctionsSubcellular localizationInhibitor of calpainPrimary ciliaRT-PCRPlasma membraneBasal channel activityQuantitative RT-PCRApical tight junctionsExpression of TRPC4Ion channelsBasolateral surfaceApical microvilliApical surfaceChannel activityConfocal microscopyTRPM3
2012
Effects of Proinflammatory Cytokines on the Claudin-19 Rich Tight Junctions of Human Retinal Pigment EpitheliumCytokine Effects on RPE Tight Junctions
Peng S, Gan G, Rao VS, Adelman RA, Rizzolo LJ. Effects of Proinflammatory Cytokines on the Claudin-19 Rich Tight Junctions of Human Retinal Pigment EpitheliumCytokine Effects on RPE Tight Junctions. Investigative Ophthalmology & Visual Science 2012, 53: 5016-5028. PMID: 22761260, PMCID: PMC3410691, DOI: 10.1167/iovs.11-8311.Peer-Reviewed Original ResearchConceptsHuman fetal RPEEffects of TNFαTransepithelial electrical resistanceProinflammatory cytokinesClaudin-19Tight junctionsAge-related macular degenerationZO-1Effects of cytokinesApical sideSubclinical inflammationTumor necrosisMacular degenerationTNFα receptorsOcular diseasesTNFαSerum-free mediumClaudin-3RPE tight junctionsFetal RPECytokinesClaudin-2Confocal immunofluorescence microscopyInhibitor of apoptosis
2011
Claudin-19 and the Barrier Properties of the Human Retinal Pigment Epithelium
Peng S, Rao VS, Adelman RA, Rizzolo LJ. Claudin-19 and the Barrier Properties of the Human Retinal Pigment Epithelium. Investigative Ophthalmology & Visual Science 2011, 52: 1392-1403. PMID: 21071746, PMCID: PMC3101667, DOI: 10.1167/iovs.10-5984.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsMeSH KeywordsCells, CulturedClaudinsElectric ImpedanceFluorescent Antibody Technique, IndirectGene SilencingGestational AgeHumansImmunoblottingMembrane ProteinsOccludinPermeabilityPolyethylene GlycolsRetinal Pigment EpitheliumReverse Transcriptase Polymerase Chain ReactionRNA, MessengerRNA, Small InterferingTight JunctionsConceptsRetinal pigment epitheliumTransepithelial electrical resistanceHuman retinal pigment epitheliumHuman fetal RPECultured human fetal retinal pigment epitheliumPigment epitheliumClaudin-19Retinal sideHuman fetal retinal pigment epitheliumSpread of edemaFetal retinal pigment epitheliumFetal human retinal pigment epitheliumEffect of serumTight junctionsRPE permeabilityQuantitative RT-PCRChoroidal capillariesSubpopulation of cellsClaudin-1RPE barrierClaudin-3RPE tight junctionsRT-PCREpitheliumSerum
2008
A Novel Rabbit Model for Studying RPE Transplantation
Cong L, Sun D, Zhang Z, Jiao W, Rizzolo LJ, Peng S. A Novel Rabbit Model for Studying RPE Transplantation. Investigative Ophthalmology & Visual Science 2008, 49: 4115-4125. PMID: 18502985, PMCID: PMC2568003, DOI: 10.1167/iovs.08-1976.Peer-Reviewed Original ResearchConceptsOptical coherence tomographySubretinal spaceIntact blood-retinal barrierRetinal pigment epithelium (RPE) transplantationRabbit RPEBlood-retinal barrierConfocal scanning laserNovel rabbit modelZonula occludens-1CFDA-SEFunctional RPE monolayerTransepithelial electrical resistanceTransplanted RPEFundus photographyConjunctival flapRPE transplantationTransplantation protocolsLabeled cellsRabbit modelCoherence tomographyOccludens-1RPE cellsRPE monolayerPrimary cultures
2000
Two secreted retinal factors regulate different stages of development of the outer blood–retinal barrier
Ban Y, Wilt S, Rizzolo L. Two secreted retinal factors regulate different stages of development of the outer blood–retinal barrier. Brain Research 2000, 119: 259-267. PMID: 10675776, DOI: 10.1016/s0165-3806(99)00183-2.Peer-Reviewed Original ResearchMeSH KeywordsAdrenergic AgonistsAnimalsBiological TransportBlood-Brain BarrierCatecholaminesCell FractionationCells, CulturedChick EmbryoChromatography, GelCulture Media, ConditionedDopamine AgonistsElectric ImpedanceEndopeptidasesEye ProteinsIndolesPigment Epithelium of EyeSerotonin Receptor AgonistsTight JunctionsConceptsRetinal pigment epitheliumBlood-retinal barrierTransepithelial electrical resistanceOuter blood-retinal barrierBlood-brain barrierEffects of astrocytesCultured retinal pigment epitheliumChick retinal pigment epitheliumPigment epitheliumNeural retinaRetinal factorsChick retinaRPE barrierRPE cellsRetinaEndothelial regionAstrocytesTight junctionsCulture modelDiffusible factorsDifferent stagesActive factorsJunction developmentMultistep processFactors