2022
Histone Acetyltransferases p300 and CBP Coordinate Distinct Chromatin Remodeling Programs in Vascular Smooth Muscle Plasticity
Chakraborty R, Ostriker AC, Xie Y, Dave JM, Gamez-Mendez A, Chatterjee P, Abu Y, Valentine J, Lezon-Geyda K, Greif DM, Schulz VP, Gallagher PG, Sessa WC, Hwa J, Martin KA. Histone Acetyltransferases p300 and CBP Coordinate Distinct Chromatin Remodeling Programs in Vascular Smooth Muscle Plasticity. Circulation 2022, 145: 1720-1737. PMID: 35502657, DOI: 10.1161/circulationaha.121.057599.Peer-Reviewed Original ResearchConceptsHistone acetylationContractile genesContractile protein expressionPhenotypic switchingHistone acetyl transferase p300Human intimal hyperplasiaPlatelet-derived growth factor treatmentAcetyl transferase p300Key regulatory mechanismSmooth muscle cell phenotypeP300 expressionP300-dependent acetylationSmooth muscle plasticityDistinct functional interactionsMuscle cell phenotypeProtein expressionIntimal hyperplasiaRole of p300Methylcytosine dioxygenase TET2Chromatin modificationsEpigenetic regulationVSMC phenotypic switchingSpecific histoneCardiovascular diseaseMaster regulator
2021
Regulation of RNA polymerase II activity is essential for terminal erythroid maturation
Murphy ZC, Murphy K, Myers J, Getman M, Couch T, Schulz VP, Lezon-Geyda K, Palumbo C, Yan H, Mohandas N, Gallagher PG, Steiner LA. Regulation of RNA polymerase II activity is essential for terminal erythroid maturation. Blood 2021, 138: 1740-1756. PMID: 34075391, PMCID: PMC8569412, DOI: 10.1182/blood.2020009903.Peer-Reviewed Original ResearchConceptsRNA polymerase IIRNA polymerase II activityTerminal erythroid maturationPolymerase II activityPolymerase IIErythroid maturationHuman erythroblastsGene expressionTerminal maturationII activityStage-specific regulationHistone posttranslational modificationsTransposase-accessible chromatinErythroid-specific genesAccumulation of heterochromatinHigh-throughput sequencingLevel of transcriptionLate-stage erythroblastsEssential biologic processesAccessible chromatinHistone marksTranscription elongationChromatin structureTranscriptional repressionChromatin immunoprecipitation
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
2012
A tissue-specific chromatin loop activates the erythroid ankyrin-1 promoter
Yocum AO, Steiner LA, Seidel NE, Cline AP, Rout ED, Lin JY, Wong C, Garrett LJ, Gallagher PG, Bodine DM. A tissue-specific chromatin loop activates the erythroid ankyrin-1 promoter. Blood 2012, 120: 3586-3593. PMID: 22968456, PMCID: PMC3482866, DOI: 10.1182/blood-2012-08-450262.Peer-Reviewed Original Research3' Untranslated Regions5' Untranslated RegionsAnimalsAnkyrinsBinding SitesCell Line, TumorChromatinDeoxyribonuclease IEnhancer Elements, GeneticHistonesHumansInsulator ElementsK562 CellsMiceMice, TransgenicNF-E2 Transcription Factor, p45 SubunitOrgan SpecificityPromoter Regions, GeneticProtein BindingProtein IsoformsSpherocytosis, Hereditary
2011
Patterns of Histone H3 Lysine 27 Monomethylation and Erythroid Cell Type-specific Gene Expression*
Steiner LA, Schulz VP, Maksimova Y, Wong C, Gallagher PG. Patterns of Histone H3 Lysine 27 Monomethylation and Erythroid Cell Type-specific Gene Expression*. Journal Of Biological Chemistry 2011, 286: 39457-39465. PMID: 21937433, PMCID: PMC3234769, DOI: 10.1074/jbc.m111.243006.Peer-Reviewed Original ResearchConceptsTranscription start siteCell type-specific gene expressionGene expressionHistone modificationsType-specific gene expressionPost-translational histone modificationsHistone H3 lysine 27Numerous cellular processesH3 lysine 27Gene-specific patternsSpecific gene expressionContext-dependent mannerExpression array analysisChromatin signaturesGene bodiesH3K27 monomethylationActive genesActive transcriptionCellular processesChromatin immunoprecipitationIndividual genesLysine 27Start siteChip microarrayErythroid cells
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