2019
A Unique Epigenomic Landscape Defines Human Erythropoiesis
Schulz VP, Yan H, Lezon-Geyda K, An X, Hale J, Hillyer CD, Mohandas N, Gallagher PG. A Unique Epigenomic Landscape Defines Human Erythropoiesis. Cell Reports 2019, 28: 2996-3009.e7. PMID: 31509757, PMCID: PMC6863094, DOI: 10.1016/j.celrep.2019.08.020.Peer-Reviewed Original ResearchMeSH KeywordsChromatinChromatin Assembly and DisassemblyDNA MethylationEpigenesis, GeneticErythroid CellsErythropoiesisGene Expression ProfilingGene Expression RegulationHematologic DiseasesHematopoietic Stem CellsHumansMultigene FamilyPolymorphism, Single NucleotideRegulatory Sequences, Nucleic AcidTranscriptomeConceptsChromatin accessibilityDNA methylationHuman erythropoiesisStage-specific gene regulationErythroid cellsPrimary human erythroid cellsChromatin state dynamicsCell typesCis-regulatory elementsGenome-wide studiesSpecialized cell typesHuman erythroid cellsCell phenotypic variationNonhematopoietic cell typesChromatin primingErythroid genesEpigenomic landscapeGene regulationMammalian erythropoiesisPhenotypic variationTranscriptome dataOrganismal needsRegulation of erythropoiesisNonpromoter sitesGene expression
2016
Setd1a and NURF mediate chromatin dynamics and gene regulation during erythroid lineage commitment and differentiation
Li Y, Schulz VP, Deng C, Li G, Shen Y, Tusi BK, Ma G, Stees J, Qiu Y, Steiner LA, Zhou L, Zhao K, Bungert J, Gallagher PG, Huang S. Setd1a and NURF mediate chromatin dynamics and gene regulation during erythroid lineage commitment and differentiation. Nucleic Acids Research 2016, 44: 7173-7188. PMID: 27141965, PMCID: PMC5009724, DOI: 10.1093/nar/gkw327.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, NuclearCell LineageCells, CulturedChromatinChromatin Assembly and DisassemblyChromatin ImmunoprecipitationErythroblastsErythrocyte CountErythrocytesErythropoiesisFemaleGene Expression RegulationHemoglobinsHistone-Lysine N-MethyltransferaseHistonesHumansLysineMaleMethylationMiceMice, KnockoutMicrococcal NucleaseMultiprotein ComplexesNerve Tissue ProteinsPromoter Regions, GeneticSpleenTranscription FactorsUpstream Stimulatory FactorsConceptsNURF complexChromatin dynamicsErythroid genesLineage commitmentAdult β-globin geneErythroid gene promotersErythroid lineage differentiationCell context-dependent mannerErythroid lineage commitmentChromatin structural alterationsContext-dependent mannerΒ-globin geneChromatin architectureEnhancer accessibilityChromatin accessibilityNucleosome repositioningTranscription regulationChromatin structureH3K4 methylationGene regulationComplex occupancyMammalian cellsGene activationGene transcriptionLineage differentiation
2011
Chromatin boundaries require functional collaboration between the hSET1 and NURF complexes
Li X, Wang S, Li Y, Deng C, Steiner LA, Xiao H, Wu C, Bungert J, Gallagher PG, Felsenfeld G, Qiu Y, Huang S. Chromatin boundaries require functional collaboration between the hSET1 and NURF complexes. Blood 2011, 118: 1386-1394. PMID: 21653943, PMCID: PMC3152501, DOI: 10.1182/blood-2010-11-319111.Peer-Reviewed Original ResearchConceptsErythroid genesInsulator sitesBarrier activityActive chromatin structureNucleosome remodeling activitiesChromatin barrier activityHistone H3K4 methyltransferaseChicken β-globinChromatin boundariesNURF complexChromatin structureInsulator functionNucleosome positioningMultiprotein complexesProtein complexesH3K4 methyltransferaseHS4 insulatorChromatin insulatorNURFH3K27me3 levelsLoci resultsLinker regionKnock-downΒ-globinFunctional collaboration
2006
Alterations in Expression and Chromatin Configuration of the Alpha Hemoglobin-Stabilizing Protein Gene in Erythroid Krüppel-Like Factor-Deficient Mice
Pilon AM, Nilson DG, Zhou D, Sangerman J, Townes TM, Bodine DM, Gallagher PG. Alterations in Expression and Chromatin Configuration of the Alpha Hemoglobin-Stabilizing Protein Gene in Erythroid Krüppel-Like Factor-Deficient Mice. Molecular And Cellular Biology 2006, 26: 4368-4377. PMID: 16705186, PMCID: PMC1489081, DOI: 10.1128/mcb.02216-05.Peer-Reviewed Original ResearchConceptsErythroid Krüppel-like factorAlpha-hemoglobin-stabilizing proteinWild-type chromatinAHSP promoterCACCC siteBeta-globin gene transcriptionDNase I hypersensitive sitesLocal chromatin structureZinc finger proteinBeta-globin promoterKrüppel-like factorMobility shift assaysBeta-globin geneErythroid genesCACCC sequenceChromatin modulatorsFinger proteinChromatin structureSubtractive hybridizationChromatin statusCACCC boxTranscription factorsProtein geneChromatin configurationHypersensitive sites
2005
A Differentiation Block in Erythroid Cells Lacking Erythroid Krupple-Like Factor (EKLF).
Gallagher P, Arcasoy M, Vayda S, Dressman H, Bieker J, Bodine D. A Differentiation Block in Erythroid Cells Lacking Erythroid Krupple-Like Factor (EKLF). Blood 2005, 106: 526. DOI: 10.1182/blood.v106.11.526.526.Peer-Reviewed Original ResearchWild typeErythroid differentiationMicroarray analysisDifferentiation blockErythroid cellsFocus genesMouse Genome 430 2.0 ArrayAffymetrix GeneChip Mouse Genome 430 2.0 ArrayFetal liver cellsCell cycle defectsTerminal erythroid differentiationCell cycle controlFetal liverIngenuity Pathway AnalysisR2 cellsMature erythroid cellsΒ-globin geneErythroid progenitor cellsErythroid genesNumerous genesDefinitive erythropoiesisDNA replicationTranscription factorsΒ-spectrinBiological functions
2004
Multiple Defects in Erythroid Gene Expression in Erythroid Krupple-Like Factor (EKLF) Target Genes in EKLF-Deficient Mice.
Gallagher P, Pilon A, Arcasoy M, Bodine D. Multiple Defects in Erythroid Gene Expression in Erythroid Krupple-Like Factor (EKLF) Target Genes in EKLF-Deficient Mice. Blood 2004, 104: 1602. DOI: 10.1182/blood.v104.11.1602.1602.Peer-Reviewed Original ResearchDNaseI hypersensitive sitesSubtractive hybridizationHypersensitive sitesΒ-globin geneHistone H3Transcription factorsTarget genesFetal liver cellsΒ-spectrinGene expressionΒ-globinErythroid gene expressionMouse Genome 430 2.0 ArrayAffymetrix GeneChip Mouse Genome 430 2.0 ArrayFactor target genesAHSP gene expressionChromatin immunoprecipitation analysisBand 3Mature erythroid progenitorsAHSP promoterRBC membrane proteinsErythroid genesChromatin upstreamChromatin modulatorsRegulated genes
1998
An Alternate Promoter Directs Expression of a Truncated, Muscle-specific Isoform of the Human Ankyrin 1 Gene*
Gallagher P, Forget B. An Alternate Promoter Directs Expression of a Truncated, Muscle-specific Isoform of the Human Ankyrin 1 Gene*. Journal Of Biological Chemistry 1998, 273: 1339-1348. PMID: 9430667, DOI: 10.1074/jbc.273.3.1339.Peer-Reviewed Original ResearchMeSH KeywordsAlternative SplicingAmino Acid SequenceAnkyrinsBase SequenceCloning, MolecularDNA, ComplementaryErythroid Precursor CellsExonsGene Expression RegulationHumansMolecular Sequence DataMuscle, SkeletalMusclesMyocardiumMyoD ProteinPromoter Regions, GeneticRecombinant ProteinsTranscriptional ActivationConceptsKilobase pairsMuscle cDNADeduced amino acid sequenceCorresponding chromosomal geneHydrophobic NH2 terminusCultured C2C12 muscle cellsHuman ankyrin-1 geneSkeletal muscle cDNADNA-protein interactionsE-box consensusAmino acid sequenceK562 cellsMuscle-specific isoformPromoter directs expressionC2C12 muscle cellsAnkyrin-1 geneReporter gene plasmidHigh-level expressionNorthern blot analysisErythroid genesErythrocyte membrane proteinsSingle Sp1Erythroid promoterAlternative splicingRich promoter