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
2014
Probing large conformational rearrangements in wild-type and mutant spectrin using structural mass spectrometry
Sriswasdi S, Harper SL, Tang HY, Gallagher PG, Speicher DW. Probing large conformational rearrangements in wild-type and mutant spectrin using structural mass spectrometry. Proceedings Of The National Academy Of Sciences Of The United States Of America 2014, 111: 1801-1806. PMID: 24453214, PMCID: PMC3918770, DOI: 10.1073/pnas.1317620111.Peer-Reviewed Original ResearchConceptsMass spectrometryConformational changesStructural mass spectrometryLarge conformational rearrangementsCell membraneMembrane integrityMass spectrometry characterizationRed cell spectrinUnidentified mechanistic insightCell membrane integrityProtein complexesMacromolecular complexesDiverse functionsCell shapeBiological processesFlexible proteinsConformational rearrangementsDimer-tetramer equilibriumRed cell membraneOpen dimersCell typesΑ-spectrinKey mechanistic roleTetramerization siteBiophysical data
2011
Integrated Genome-Wide CTCF and CohesinSA1 Occupancy and Expression Analyses in Erythropoiesis
Schulz V, Steiner L, Maksimova Y, Gallagher P. Integrated Genome-Wide CTCF and CohesinSA1 Occupancy and Expression Analyses in Erythropoiesis. Blood 2011, 118: 1305. DOI: 10.1182/blood.v118.21.1305.1305.Peer-Reviewed Original ResearchSites of CTCFCTCF sitesCell-type specificIntergenic regionErythroid cellsChromatin domainsCohesin complexCell typesGene promoterRefSeq genesLong-range chromatin interactionsPrimary human erythroid cellsRepressive chromatin marksCell type-specific mannerDistal intergenic regionsMacromolecule catabolic processHigh-throughput sequencingHuman erythroid cellsMRNA transcriptome analysisChromatin marksChromatin interactionsChromosome segregationInduction of apoptosisCTCF bindingTranscriptional activatorPrimitive Erythroid Progenitors Are Regulated by Hypoxia and Display An Aerobic Glycolytic Metabolic Profile,
Baron M, Isern J, Fraser S, He Z, Ma'ayan A, Schulz V, Tuck D, Gallagher P. Primitive Erythroid Progenitors Are Regulated by Hypoxia and Display An Aerobic Glycolytic Metabolic Profile,. Blood 2011, 118: 3159. DOI: 10.1182/blood.v118.21.3159.3159.Peer-Reviewed Original ResearchErythroid developmentGenome-wide expression profilingErythroid cell fateCandidate transcriptional regulatorsCell typesHIF-1Transcription factor HIF-1Early mouse embryosMouse yolk sacNumber of genesHIF-1 target genesMost mammalian cellsAnalysis of promotersYolk sacDominant negative regulatorGlycolytic metabolic profileStem/progenitorsPrimitive erythropoiesisPrimitive erythroid progenitorsMesodermal progenitorsCell fateTranscriptional regulatorsTranscription profilingMammalian embryosKinase networkSingle-lineage transcriptome analysis reveals key regulatory pathways in primitive erythroid progenitors in the mouse embryo
Isern J, He Z, Fraser ST, Nowotschin S, Ferrer-Vaquer A, Moore R, Hadjantonakis AK, Schulz V, Tuck D, Gallagher PG, Baron MH. Single-lineage transcriptome analysis reveals key regulatory pathways in primitive erythroid progenitors in the mouse embryo. Blood 2011, 117: 4924-4934. PMID: 21263157, PMCID: PMC3100699, DOI: 10.1182/blood-2010-10-313676.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceCell LineageCytokinesDNA PrimersEpsilon-GlobinsErythroid Precursor CellsErythropoiesisFemaleGene Expression ProfilingGene Expression Regulation, DevelopmentalGene Regulatory NetworksGlycolysisGreen Fluorescent ProteinsGrowth SubstancesMaleMiceMice, Inbred ICRMice, TransgenicOxygenPregnancyRecombinant Fusion ProteinsRNA, MessengerSignal TransductionConceptsPrimitive erythroid progenitorsMouse embryosErythroid progenitorsGlobal expression profilesEmbryonic day 7.5Critical regulatory factorKey regulatory pathwaysOnset of circulationFirst transcriptomeRemarkable proliferative capacityTranscript diversityTransgenic reporterTranscriptome analysisFirst cell typeRegulatory pathwaysHematopoietic lineagesExpression profilesRegulatory factorsCell typesDay 7.5EmbryosProgenitorsYolk sacBlood progenitorsGlycolytic profile
2008
Red cell membrane: past, present, and future
Mohandas N, Gallagher PG. Red cell membrane: past, present, and future. Blood 2008, 112: 3939-3948. PMID: 18988878, PMCID: PMC2582001, DOI: 10.1182/blood-2008-07-161166.Peer-Reviewed Original ResearchConceptsRed cell membraneCell membraneCell typesDiverse cell typesHuman cell typesOnly structural componentNatural selectionTransmembrane proteinSkeletal proteinsFunctional characterizationPlasma membraneMembrane envelopeNon-nucleated red cellsMembrane functionRed cell abnormalitiesProteinMembraneDisease statesCellsStructural componentsRed cellsNew lightUnexpected revelationExciting fieldCell abnormalities
2003
Regulation of erythrocyte membrane protein gene expression
Gallagher PG. Regulation of erythrocyte membrane protein gene expression. Current Opinion In Hematology 2003, 10: 115-122. PMID: 12579036, DOI: 10.1097/00062752-200303000-00003.Peer-Reviewed Original ResearchConceptsProtein gene expressionGene productsGene expressionCell typesErythroid-specific genesMultiple protein isoformsStage-specific functionsDevelopmental stage-specific functionsDifferent gene productsTissue-specific promotersSame gene productDifferent cell typesIsoform diversityGene regulationFunctional diversityNonerythroid cellsMultifunctional proteinProtein isoformsRegulatory elementsAlternate polyadenylationAlternate splicingMembrane assemblyRegulated expressionRelated genesHomologous family