2021
Altered transcriptome and disease-related phenotype emerge only after fibroblasts harvested from patients with age-related macular degeneration are differentiated into retinal pigment epithelium
Cai H, Gong J, Team N, Noggle S, Paull D, Rizzolo LJ, Del Priore LV, Fields MA. Altered transcriptome and disease-related phenotype emerge only after fibroblasts harvested from patients with age-related macular degeneration are differentiated into retinal pigment epithelium. Experimental Eye Research 2021, 207: 108576. PMID: 33895162, DOI: 10.1016/j.exer.2021.108576.Peer-Reviewed Original ResearchConceptsAge-related macular degenerationRetinal pigment epitheliumMacular degenerationPigment epitheliumInduced pluripotent stem cellsEtiology of AMDMitochondrial dysfunctionAge-matched controlsNovel therapeutic targetTranscriptome of fibroblastsAMD patientsNormal donorsFibroblasts of patientsTherapeutic targetPatientsMore studiesAltered transcriptomeDisease phenotypeSignificant differencesCell linesMitochondrial functionDysfunctionOriginal fibroblastsDistinct transcriptomesDegenerationKnockdown 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
Unstimulated, Serum-free Cultures of Retinal Pigment Epithelium Excrete Large Mounds of Drusen-like Deposits
Chen X, Singh D, Adelman RA, Rizzolo LJ. Unstimulated, Serum-free Cultures of Retinal Pigment Epithelium Excrete Large Mounds of Drusen-like Deposits. Current Eye Research 2020, 45: 1390-1394. PMID: 32202447, DOI: 10.1080/02713683.2020.1740744.Peer-Reviewed Original ResearchMeSH KeywordsActinsApolipoproteins ECalciumCell Culture TechniquesCell LineCell ProliferationCoculture TechniquesCulture Media, Serum-FreeElectric ImpedanceHumansInduced Pluripotent Stem CellsLipid MetabolismRetinal DrusenRetinal Pigment EpitheliumStem CellsTight JunctionsTissue Inhibitor of Metalloproteinase-3VitronectinConceptsRetinal pigment epithelium
2013
Engineering a Blood-Retinal Barrier With Human Embryonic Stem Cell-Derived Retinal Pigment Epithelium: Transcriptome and Functional Analysis
Peng S, Gan G, Qiu C, Zhong M, An H, Adelman RA, Rizzolo LJ. Engineering a Blood-Retinal Barrier With Human Embryonic Stem Cell-Derived Retinal Pigment Epithelium: Transcriptome and Functional Analysis. Stem Cells Translational Medicine 2013, 2: 534-544. PMID: 23734062, PMCID: PMC3697821, DOI: 10.5966/sctm.2012-0134.Peer-Reviewed Original ResearchConceptsRetinal pigment epitheliumBlood-retinal barrierHuman retinal pigment epitheliumPigment epitheliumHuman fetal retinal pigment epitheliumOuter blood-retinal barrierTight junctionsFetal retinal pigment epitheliumEmbryonic stem cell-derived retinal pigment epitheliumAdult retinal pigment epitheliumQuantitative reverse transcription polymerase chain reactionMaturation of hESCReverse transcription-polymerase chain reactionTranscription-polymerase chain reactionHuman embryonic stem cell-derived retinal pigment epitheliumStem cell-derived retinal pigment epitheliumRPE replacement therapyPanel of genesReplacement therapyAnimal modelsHuman embryonic stem cellsRetinal degenerationRPE functionSerum-free mediumHuman retina
1988
Post-translational protein modification in the endoplasmic reticulum. Demonstration of fatty acylase and deoxymannojirimycin-sensitive alpha-mannosidase activities.
Rizzolo L, Kornfeld R. Post-translational protein modification in the endoplasmic reticulum. Demonstration of fatty acylase and deoxymannojirimycin-sensitive alpha-mannosidase activities. Journal Of Biological Chemistry 1988, 263: 9520-9525. PMID: 2967826, DOI: 10.1016/s0021-9258(19)76573-9.Peer-Reviewed Original Research
1987
Nonpolarized secretion of truncated forms of the influenza hemagglutinin and the vesicular stomatitus virus G protein from MDCK cells.
Gonzalez A, Rizzolo L, Rindler M, Adesnik M, Sabatini D, Gottlieb T. Nonpolarized secretion of truncated forms of the influenza hemagglutinin and the vesicular stomatitus virus G protein from MDCK cells. Proceedings Of The National Academy Of Sciences Of The United States Of America 1987, 84: 3738-3742. PMID: 3035552, PMCID: PMC304951, DOI: 10.1073/pnas.84.11.3738.Peer-Reviewed Original ResearchConceptsApical plasma membrane domainMDCK cellsPlasma membrane domainsPolarity of secretionVirus G proteinViral glycoproteinsVesicular stomatitus virusMembrane anchoringCorresponding genesMembrane domainsCytoplasmic segmentNonpolarized fashionG proteinsEndogenous glycoproteinsApical surfaceProteinEpithelial cellsGlycoprotein GG glycoproteinGlycoproteinConfluent monolayersCellsInfluenza hemagglutininCDNAGenes
1986
Secretion of endogenous and exogenous proteins from polarized MDCK cell monolayers.
Gottlieb T, Beaudry G, Rizzolo L, Colman A, Rindler M, Adesnik M, Sabatini D. Secretion of endogenous and exogenous proteins from polarized MDCK cell monolayers. Proceedings Of The National Academy Of Sciences Of The United States Of America 1986, 83: 2100-2104. PMID: 3083413, PMCID: PMC323238, DOI: 10.1073/pnas.83.7.2100.Peer-Reviewed Original ResearchConceptsMDCK cellsCellular endomembrane systemEpithelial cell polarityMembrane-associated precursorEndogenous productsMature secretory productCell polarityPolarized MDCK cell monolayersEndomembrane systemAlpha 2u-globulinCorresponding genesSecretory pathwayMDCK cell monolayersRegulated pathwaySecretory productsImmunoglobulin kappa chainConstitutive secretionExogenous proteinsProteolytic cleavageSorting mechanismBasolateral surfaceApical surfaceProteinVectorial secretionCell of originSorting and endocytosis of viral glycoproteins in transfected polarized epithelial cells.
Gottlieb T, Gonzalez A, Rizzolo L, Rindler M, Adesnik M, Sabatini D. Sorting and endocytosis of viral glycoproteins in transfected polarized epithelial cells. Journal Of Cell Biology 1986, 102: 1242-1255. PMID: 3007530, PMCID: PMC2114186, DOI: 10.1083/jcb.102.4.1242.Peer-Reviewed Original ResearchConceptsG proteinsCell surfaceVesicular stomatitis virusApical plasma membrane domainPlasma membrane domainsPlasma membrane proteinsCell surface domainsApical cell surfaceMadin-Darby canine kidney cellsG protein moleculesViral glycoproteinsLysosome-like vesiclesCanine kidney cellsProtein synthesis inhibitorMembrane domainsMembrane proteinsSurface domainsBasolateral domainEukaryotic expression plasmidTransfection experimentsExpression plasmidProteinPresence of chloroquineApical surfaceProtein molecules
1985
Biosynthesis and intracellular sorting of growth hormone-viral envelope glycoprotein hybrids.
Rizzolo L, Finidori J, Gonzalez A, Arpin M, Ivanov I, Adesnik M, Sabatini D. Biosynthesis and intracellular sorting of growth hormone-viral envelope glycoprotein hybrids. Journal Of Cell Biology 1985, 101: 1351-1362. PMID: 2995406, PMCID: PMC2113904, DOI: 10.1083/jcb.101.4.1351.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological TransportCell LineChlorocebus aethiopsDogsEndoplasmic ReticulumFibroblastsGenes, SyntheticGenetic VectorsGlycoproteinsGrowth HormoneHemagglutinins, ViralIntracellular MembranesKidneyMembrane ProteinsOrthomyxoviridaeProtein Processing, Post-TranslationalRecombinant ProteinsTransfectionVesicular stomatitis Indiana virusViral Envelope ProteinsConceptsCarboxy-terminal portionGolgi apparatusMembrane proteinsChimeric geneTranscription-translation experimentsPlasma membrane proteinsEndoplasmic reticulum membraneMembrane protein segmentsVesicular stomatitis virus envelope glycoproteinER membraneHybrid proteinIntracellular sortingCytoplasmic portionJuxtanuclear regionTransmembrane portionMembrane polypeptidesCarboxy terminusChimeric proteinHybrid polypeptideInsertion signalProtein segmentsSecretory polypeptidesCytoplasmic vesiclesReticulum membraneER cisternae