2021
Polycomb complexes redundantly maintain epidermal stem cell identity during development
Cohen I, Bar C, Liu H, Valdes VJ, Zhao D, Galbo PM, Silva JM, Koseki H, Zheng D, Ezhkova E. Polycomb complexes redundantly maintain epidermal stem cell identity during development. Genes & Development 2021, 35: 354-366. PMID: 33602871, PMCID: PMC7919412, DOI: 10.1101/gad.345363.120.Peer-Reviewed Original ResearchConceptsFunctional redundancyTranscription factorsRepressive chromatin domainsStem cell identityEpidermal stem cellsStrong derepressionEpidermal identityPolycomb complexesChromatin domainsDevelopmental regulatorsIdentity genesPRC2 functionGene repressionGenomic bindingCell identityMolecular dissectionEpidermal progenitorsLineage identityPRC2PRC1Ectopic expressionSevere defectsEpidermal stratificationPhysiological significanceStem cells
2018
PRC1 preserves epidermal tissue integrity independently of PRC2
Cohen I, Zhao D, Menon G, Nakayama M, Koseki H, Zheng D, Ezhkova E. PRC1 preserves epidermal tissue integrity independently of PRC2. Genes & Development 2018, 33: 55-60. PMID: 30567998, PMCID: PMC6317312, DOI: 10.1101/gad.319939.118.Peer-Reviewed Original ResearchConceptsAdhesion genesEpidermal tissue integrityLoss of PRC1PRC1 functionChromatin regulatorsEpigenetic regulationMolecular dissectionPRC2PRC1Gene expressionTissue developmentSkin morphogenesisFunctional linkSkin fragility syndromeEpidermal stratificationEpidermal integrityTissue integrityGenesExpressionH3K27me3Fragility syndromeMorphogenesisRegulatorCobindingRegulationPRC1 Fine-tunes Gene Repression and Activation to Safeguard Skin Development and Stem Cell Specification
Cohen I, Zhao D, Bar C, Valdes VJ, Dauber-Decker KL, Nguyen MB, Nakayama M, Rendl M, Bickmore WA, Koseki H, Zheng D, Ezhkova E. PRC1 Fine-tunes Gene Repression and Activation to Safeguard Skin Development and Stem Cell Specification. Cell Stem Cell 2018, 22: 726-739.e7. PMID: 29727681, PMCID: PMC5944606, DOI: 10.1016/j.stem.2018.04.005.Peer-Reviewed Original ResearchConceptsNon-canonical PRC1 complexesStem cell specificationPRC1 complexesCell specificationSkin developmentDiverse rolesRepressive Complex 1Essential chromatin regulatorsPrecise developmental programExpression of genesCanonical PRC1PRC1 bindsPRC1 functionChromatin regulatorsGene repressionActive genesCell identityRepressor functionDevelopmental programSC formationFurther dissectionGenesPRC2PRC1Function studies