2021
MRTFA: A critical protein in normal and malignant hematopoiesis and beyond
Reed F, Larsuel ST, Mayday MY, Scanlon V, Krause DS. MRTFA: A critical protein in normal and malignant hematopoiesis and beyond. Journal Of Biological Chemistry 2021, 296: 100543. PMID: 33722605, PMCID: PMC8079280, DOI: 10.1016/j.jbc.2021.100543.Peer-Reviewed Original ResearchConceptsMalignant hematopoiesisActin cytoskeleton dynamicsCritical cellular functionsResponse factorSerum response factorTranscription factor ACellular rolesImmediate early genesProtein partnersTranscriptional regulationCytoskeleton dynamicsCellular functionsTranscriptional targetsTranscription factorsCytoskeletal proteinsCritical proteinsMRTFAEarly genesCell typesChromosomal translocationsHematopoietic cellsCell growthFactor AHematopoiesisMuscle cells
2019
MKL1-actin pathway restricts chromatin accessibility and prevents mature pluripotency activation
Hu X, Liu ZZ, Chen X, Schulz VP, Kumar A, Hartman AA, Weinstein J, Johnston JF, Rodriguez EC, Eastman AE, Cheng J, Min L, Zhong M, Carroll C, Gallagher PG, Lu J, Schwartz M, King MC, Krause DS, Guo S. MKL1-actin pathway restricts chromatin accessibility and prevents mature pluripotency activation. Nature Communications 2019, 10: 1695. PMID: 30979898, PMCID: PMC6461646, DOI: 10.1038/s41467-019-09636-6.Peer-Reviewed Original ResearchConceptsCell fate reprogrammingChromatin accessibilityActin cytoskeletonSomatic cell reprogrammingPluripotency transcription factorsGlobal chromatin accessibilityGenomic accessibilityCytoskeleton (LINC) complexCell reprogrammingCytoskeletal genesTranscription factorsReprogrammingPluripotencyChromatinCytoskeletonMKL1Unappreciated aspectPathwayNuclear volumeNucleoskeletonSUN2CellsActivationGenesExpression
2018
MRTFA augments megakaryocyte maturation by enhancing the SRF regulatory axis
Rahman NT, Schulz VP, Wang L, Gallagher PG, Denisenko O, Gualdrini F, Esnault C, Krause DS. MRTFA augments megakaryocyte maturation by enhancing the SRF regulatory axis. Blood Advances 2018, 2: 2691-2703. PMID: 30337297, PMCID: PMC6199649, DOI: 10.1182/bloodadvances.2018019448.Peer-Reviewed Original ResearchConceptsSerum response factorHEL cellsTarget genesBinding of SRFMegakaryocyte maturationActivity of SRFSRF target genesUpregulated target genesMyocardin family proteinsTernary complex factor familyTransformation-specific proteinsPrimary hematopoietic cellsHuman erythroleukemia cell lineErythroleukemia cell lineCArG sitesPrimary human CD34Genomic sitesGenomic regionsChromatin immunoprecipitationETS factorsTranscription factorsHuman megakaryopoiesisGenomic associationsMRTFAFactor family
2013
Whole-exome sequencing identifies a novel somatic mutation in MMP8 associated with a t(1;22)-acute megakaryoblastic leukemia
Kim Y, Schulz VP, Satake N, Gruber TA, Teixeira AM, Halene S, Gallagher PG, Krause DS. Whole-exome sequencing identifies a novel somatic mutation in MMP8 associated with a t(1;22)-acute megakaryoblastic leukemia. Leukemia 2013, 28: 945-948. PMID: 24157583, PMCID: PMC3981934, DOI: 10.1038/leu.2013.314.Peer-Reviewed Original Research
2012
Induction of megakaryocyte differentiation drives nuclear accumulation and transcriptional function of MKL1 via actin polymerization and RhoA activation
Smith EC, Teixeira AM, Chen RC, Wang L, Gao Y, Hahn KL, Krause DS. Induction of megakaryocyte differentiation drives nuclear accumulation and transcriptional function of MKL1 via actin polymerization and RhoA activation. Blood 2012, 121: 1094-1101. PMID: 23243284, PMCID: PMC3575755, DOI: 10.1182/blood-2012-05-429993.Peer-Reviewed Original ResearchMeSH KeywordsActinsAnimalsCell DifferentiationCell Line, TumorCell NucleusDNA-Binding ProteinsEnzyme ActivationHumansMegakaryocyte Progenitor CellsMegakaryocytesMiceOncogene Proteins, FusionProtein MultimerizationRhoA GTP-Binding ProteinSerum Response FactorTetradecanoylphorbol AcetateThrombopoietinTrans-ActivatorsConceptsMegakaryocyte differentiationActin polymerizationSubcellular localizationSerum response factor (SRF) transcriptional activityRhoA activitySRF target genesComplex cellular responsesFactor transcriptional activityMuscle cell typesCell-type specificHuman erythroleukemia cellsPrimary megakaryocytesTranscriptional regulatorsActin organizationCellular functionsTranscriptional functionSRF activityNuclear localizationTarget genesMegakaryocytic differentiationTranscriptional activityNuclear accumulationErythroleukemia cellsMolecular mechanismsRhoA activationMKL1 and MKL2 play redundant and crucial roles in megakaryocyte maturation and platelet formation
Smith EC, Thon JN, Devine MT, Lin S, Schulz VP, Guo Y, Massaro SA, Halene S, Gallagher P, Italiano JE, Krause DS. MKL1 and MKL2 play redundant and crucial roles in megakaryocyte maturation and platelet formation. Blood 2012, 120: 2317-2329. PMID: 22806889, PMCID: PMC3447785, DOI: 10.1182/blood-2012-04-420828.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine DiphosphateAnimalsBleeding TimeBlood PlateletsBone Marrow CellsCells, CulturedCrosses, GeneticCytoplasmCytoskeletonGene Expression ProfilingHematopoiesisMegakaryocytesMiceMice, Inbred C57BLMice, KnockoutOligonucleotide Array Sequence AnalysisPlatelet ActivationThrombocytopeniaTrans-ActivatorsTranscription FactorsConceptsMegakaryocyte maturationPlatelet formationSerum response factorSerum response factor expressionMembrane organizationGene expressionMKL1MKL2Response factorDKO miceKO backgroundMegakaryocyte compartmentMegakaryocytesCritical roleMegakaryocyte ploidyExpressionMaturationKnockout miceFactor expressionCrucial roleHomologuesGenesMiceProlonged bleeding timeRole
2011
Bi‐allelic deletions within 13q14 and transient trisomy 21 with absence of GATA1s in pediatric acute megakaryoblastic leukemia
Massaro SA, Bajaj R, Pashankar FD, Ornstein D, Gallagher PG, Krause DS, Li P. Bi‐allelic deletions within 13q14 and transient trisomy 21 with absence of GATA1s in pediatric acute megakaryoblastic leukemia. Pediatric Blood & Cancer 2011, 57: 516-519. PMID: 21538823, PMCID: PMC4517576, DOI: 10.1002/pbc.23156.Peer-Reviewed Original Research
2009
Role for MKL1 in megakaryocytic maturation
Cheng EC, Luo Q, Bruscia EM, Renda MJ, Troy JA, Massaro SA, Tuck D, Schulz V, Mane SM, Berliner N, Sun Y, Morris SW, Qiu C, Krause DS. Role for MKL1 in megakaryocytic maturation. Blood 2009, 113: 2826-2834. PMID: 19136660, PMCID: PMC2661865, DOI: 10.1182/blood-2008-09-180596.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlood Cell CountBone MarrowCell DifferentiationCell Line, TumorCells, CulturedDNA-Binding ProteinsGene Expression ProfilingGene Expression RegulationHumansLeukemia, Erythroblastic, AcuteMegakaryocytesMiceMice, Inbred C57BLMice, KnockoutOligonucleotide Array Sequence AnalysisOncogene Proteins, FusionPloidiesRecombinant Fusion ProteinsRNA InterferenceRNA, Small InterferingSerum Response FactorThrombocytopeniaThrombopoiesisThrombopoietinTrans-ActivatorsConceptsMegakaryoblastic leukemia 1Reduced platelet countsSerum response factorMegakaryocytic differentiationPeripheral bloodPlatelet countMKL1 expressionMegakaryoblastic leukemiaBone marrow megakaryocytesMuscle cellsPresence of thrombopoietinPhysiologic maturationHuman erythroleukemia cell lineIncreased numberMarrow megakaryocytesCell linesErythroleukemia cell lineMegakaryocytesMegakaryocytic maturationDifferentiated muscle cellsOverexpressionConcurrent increaseMuscle differentiationCellsMaturation