2018
Uhrf1 regulates active transcriptional marks at bivalent domains in pluripotent stem cells through Setd1a
Kim KY, Tanaka Y, Su J, Cakir B, Xiang Y, Patterson B, Ding J, Jung YW, Kim JH, Hysolli E, Lee H, Dajani R, Kim J, Zhong M, Lee JH, Skalnik D, Lim JM, Sullivan GJ, Wang J, Park IH. Uhrf1 regulates active transcriptional marks at bivalent domains in pluripotent stem cells through Setd1a. Nature Communications 2018, 9: 2583. PMID: 29968706, PMCID: PMC6030064, DOI: 10.1038/s41467-018-04818-0.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCCAAT-Enhancer-Binding ProteinsCellular ReprogrammingCellular Reprogramming TechniquesChimeraDNA MethylationEpigenesis, GeneticFemaleFibroblastsGene Knockout TechniquesHEK293 CellsHistone CodeHistone-Lysine N-MethyltransferaseHistonesHumansMaleMesodermMiceMouse Embryonic Stem CellsNeural PlateNuclear ProteinsPrimary Cell CultureRecombinant ProteinsUbiquitin-Protein LigasesConceptsEmbryonic stem cellsUnique epigenetic statesBivalent histone modificationsRecruitment of DNMT1Bivalent histone marksCell typesDNA-binding proteinsSpecialized cell typesStem cellsPluripotent stem cellsTrithorax groupBivalent domainsMesoderm specificationCOMPASS complexHeterochromatin formationEpigenetic stateCell specificationHistone marksLineage specificationHistone modificationsEpigenetic regulationSpecific lineagesDNA methylationTranscriptional marksEpigenetic changes
2017
Bisulfite-independent analysis of CpG island methylation enables genome-scale stratification of single cells
Han L, Wu HJ, Zhu H, Kim KY, Marjani SL, Riester M, Euskirchen G, Zi X, Yang J, Han J, Snyder M, Park IH, Irizarry R, Weissman SM, Michor F, Fan R, Pan X. Bisulfite-independent analysis of CpG island methylation enables genome-scale stratification of single cells. Nucleic Acids Research 2017, 45: e77-e77. PMID: 28126923, PMCID: PMC5605247, DOI: 10.1093/nar/gkx026.Peer-Reviewed Original ResearchMeSH KeywordsCell LineCell Line, TumorChromosome MappingCpG IslandsDNA MethylationDNA Restriction EnzymesEpigenesis, GeneticFibroblastsGenetic VariationGenome, HumanHigh-Throughput Nucleotide SequencingHumansInduced Pluripotent Stem CellsK562 CellsLymphocytesPromoter Regions, GeneticSingle-Cell AnalysisConceptsSingle cellsMethylation-sensitive restriction enzyme digestionCpG methylation patternsDNA bisulfite sequencingInduced pluripotent stem cellsSingle-cell levelCpG island methylationPluripotent stem cellsHeterogeneous cell populationsMultiple displacement amplificationEpigenetic heterogeneityMethylation sequencingBisulfite sequencingENCODE dataMethylation patternsMethylation differencesMethylation profilesRestriction enzyme digestionIsland methylationIndividual cellsHematopoietic cellsStem cellsSmall populationSequencingEnzyme digestion
2016
Dnmt1 regulates the myogenic lineage specification of muscle stem cells
Liu R, Kim KY, Jung YW, Park IH. Dnmt1 regulates the myogenic lineage specification of muscle stem cells. Scientific Reports 2016, 6: 35355. PMID: 27752090, PMCID: PMC5082760, DOI: 10.1038/srep35355.Peer-Reviewed Original ResearchConceptsImportant epigenetic markKnockout mouse approachesDNA methylation patternsMuscle stem cellsDaughter DNA strandsDNMT1 regulationEpigenetic marksLineage specificationCellular identityDNA methylationMethylation patternsDNMT1 depletionMyogenic genesMyogenic differentiationLineage fidelityNegative regulatorGene expressionDNMT1Osteogenic lineageFunctional roleFunctional consequencesMouse approachDNA strandsId-1Stem cellsRegulation of the DNA Methylation Landscape in Human Somatic Cell Reprogramming by the miR-29 Family
Hysolli E, Tanaka Y, Su J, Kim KY, Zhong T, Janknecht R, Zhou XL, Geng L, Qiu C, Pan X, Jung YW, Cheng J, Lu J, Zhong M, Weissman SM, Park IH. Regulation of the DNA Methylation Landscape in Human Somatic Cell Reprogramming by the miR-29 Family. Stem Cell Reports 2016, 7: 43-54. PMID: 27373925, PMCID: PMC4945581, DOI: 10.1016/j.stemcr.2016.05.014.Peer-Reviewed Original ResearchConceptsDNA methylation stateEmbryonic stem cellsInduced pluripotent stem cellsHuman somatic cell reprogrammingSomatic cell reprogrammingMethylation stateCell reprogrammingMiR-29 familyDNA methylation landscapeImportant epigenetic regulatorsStem cellsOverexpression of Oct4Global DNA methylationMiRNA-based approachesPluripotent stem cellsMethylation landscapeHistone modificationsDNA demethylationEpigenomic changesEarly reprogrammingEpigenetic regulatorsEpigenetic differencesDNA methylationHydroxymethylation analysisReprogramming
2012
The lesser known story of X chromosome reactivation
Hysolli E, Tanaka Y, Kim K, Jung Y, Park IH. The lesser known story of X chromosome reactivation. Cell Cycle 2012, 11: 229-235. PMID: 22234239, PMCID: PMC3293375, DOI: 10.4161/cc.11.2.18998.Peer-Reviewed Original ResearchConceptsX chromosome reactivationX-chromosome inactivationInner cell massActive histone marksGerm cell formationX inactivation signalHistone marksActive chromosomeCellular reprogrammingInactivation signalGene poolPluripotent cellsKey regulatorFemale cellsGene expressionGerm layersCell formationXY cellsCell massImportant mechanismNatural occurrenceCellsReprogrammingChromosomesGenes
2010
Hematopoietic differentiation of induced pluripotent stem cells from patients with mucopolysaccharidosis type I (Hurler syndrome)
Tolar J, Park IH, Xia L, Lees CJ, Peacock B, Webber B, McElmurry RT, Eide CR, Orchard PJ, Kyba M, Osborn MJ, Lund TC, Wagner JE, Daley GQ, Blazar BR. Hematopoietic differentiation of induced pluripotent stem cells from patients with mucopolysaccharidosis type I (Hurler syndrome). Blood 2010, 117: 839-847. PMID: 21037085, PMCID: PMC3035077, DOI: 10.1182/blood-2010-05-287607.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBone Marrow CellsCell DifferentiationCells, CulturedChild, PreschoolDNA MethylationHEK293 CellsHematopoietic SystemHomeodomain ProteinsHumansIduronidaseInduced Pluripotent Stem CellsInfantKeratinocytesKruppel-Like Factor 4Kruppel-Like Transcription FactorsMaleMesodermMiceMucopolysaccharidosis INanog Homeobox ProteinOctamer Transcription Factor-3Promoter Regions, GeneticProto-Oncogene Proteins c-mycSOXB1 Transcription FactorsStromal CellsTransfectionConceptsHematopoietic cell transplantationMPS IHMucopolysaccharidosis type IL-iduronidaseNonhematopoietic cellsStem cellsLife-saving measureInduced pluripotent stem cellsAutologous stem cellsAutologous hematopoietic graftsType IPluripotent stem cellsAllogeneic transplantationSignificant morbidityImmunologic complicationsInsidious onsetCell transplantationHematopoietic graftsImmune reactionsAnatomical sitesCongenital deficiencyIdeal graftDonor cellsLysosomal storageKnown benefits
2009
Differential methylation of tissue- and cancer-specific CpG island shores distinguishes human induced pluripotent stem cells, embryonic stem cells and fibroblasts
Doi A, Park IH, Wen B, Murakami P, Aryee MJ, Irizarry R, Herb B, Ladd-Acosta C, Rho J, Loewer S, Miller J, Schlaeger T, Daley GQ, Feinberg AP. Differential methylation of tissue- and cancer-specific CpG island shores distinguishes human induced pluripotent stem cells, embryonic stem cells and fibroblasts. Nature Genetics 2009, 41: 1350-1353. PMID: 19881528, PMCID: PMC2958040, DOI: 10.1038/ng.471.Peer-Reviewed Original ResearchTargeted and genome-scale strategies reveal gene-body methylation signatures in human cells
Ball MP, Li JB, Gao Y, Lee JH, LeProust EM, Park IH, Xie B, Daley GQ, Church GM. Targeted and genome-scale strategies reveal gene-body methylation signatures in human cells. Nature Biotechnology 2009, 27: 361-368. PMID: 19329998, PMCID: PMC3566772, DOI: 10.1038/nbt.1533.Peer-Reviewed Original ResearchTargeted bisulfite sequencing reveals changes in DNA methylation associated with nuclear reprogramming
Deng J, Shoemaker R, Xie B, Gore A, LeProust EM, Antosiewicz-Bourget J, Egli D, Maherali N, Park IH, Yu J, Daley GQ, Eggan K, Hochedlinger K, Thomson J, Wang W, Gao Y, Zhang K. Targeted bisulfite sequencing reveals changes in DNA methylation associated with nuclear reprogramming. Nature Biotechnology 2009, 27: 353-360. PMID: 19330000, PMCID: PMC2715272, DOI: 10.1038/nbt.1530.Peer-Reviewed Original ResearchMeSH KeywordsBase SequenceCell NucleusDNADNA MethylationGene TargetingHumansMetabolomeMolecular Sequence DataSequence Analysis, DNASulfitesConceptsHuman CpG islandsLarge eukaryotic genomesStem cellsEmbryonic stem cellsWhole-genome analysisPluripotent stem cellsEukaryotic genomesNuclear reprogrammingCytosine methylationBisulfite sequencingDNA methylationCpG islandsMethylationPadlock probesGenomeCellsReprogrammingSequencingFibroblastsIslands
2007
Reprogramming of human somatic cells to pluripotency with defined factors
Park IH, Zhao R, West JA, Yabuuchi A, Huo H, Ince TA, Lerou PH, Lensch MW, Daley GQ. Reprogramming of human somatic cells to pluripotency with defined factors. Nature 2007, 451: 141-146. PMID: 18157115, DOI: 10.1038/nature06534.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnimalsCell DifferentiationCell ShapeCells, CulturedDNA MethylationDNA-Binding ProteinsEmbryonic Stem CellsFetusFibroblastsGene Expression ProfilingHMGB ProteinsHomeodomain ProteinsHumansInfant, NewbornKruppel-Like Factor 4Kruppel-Like Transcription FactorsMiceNanog Homeobox ProteinOctamer Transcription Factor-3Pluripotent Stem CellsPromoter Regions, GeneticProto-Oncogene Proteins c-mycSOXB1 Transcription FactorsTeratomaTranscription FactorsTransplantation, HeterologousConceptsEmbryonic stem cellsStem cellsIPS cellsHuman somatic cellsInduced pluripotent stem cellsHuman iPS cellsPluripotent stem cellsHuman primary cellsPatient-specific cellsEarly embryosTranscription factorsSomatic cellsEctopic expressionPluripotencyGene expressionHuman cellsMurine fibroblastsDefined factorsPrimary cellsCell linesDermal fibroblastsCellsInvaluable toolFibroblastsExpression