MegakaryocytesMegakaryocyte Progenitor CellsThrombopoietinHematopoietic Stem CellsThrombopoiesisBone Marrow CellsBlood PlateletsReceptors, ThrombopoietinColony-Forming Units AssayThrombocytopeniaHematopoiesisPlatelet CountInterleukin-3Platelet AggregationPloidiesAntigens, CD34Cell DifferentiationStem CellsStem Cell FactorBone MarrowCells, CulturedPlatelet Factor 4ThrombocytosisErythropoietinGranulocyte-Macrophage Colony-Stimulating FactorPlatelet Membrane Glycoprotein IIbPlatelet Membrane GlycoproteinsRecombinant ProteinsCell LineagePlatelet AdhesivenessCell DivisionPlatelet Glycoprotein GPIb-IX ComplexPlatelet TransfusionGATA1 Transcription FactorMyeloid Progenitor CellsErythroid Precursor CellsPlatelet Glycoprotein GPIIb-IIIa ComplexMice, Inbred C57BLFlow CytometryMegakaryocyte-Erythroid Progenitor CellsColony-Stimulating FactorsReceptors, CytokineFetal BloodGranulocytesCell SeparationBlood Cell CountThrombocythemia, EssentialCell ProliferationErythroid-Specific DNA-Binding FactorsCell CountPolyploidyNeural Stem CellsInterleukin-11Granulocyte Colony-Stimulating FactorNF-E2 Transcription FactorAntigens, CDMultipotent Stem CellsNF-E2 Transcription Factor, p45 SubunitMice, TransgenicPurpura, ThrombocytopenicMice, KnockoutErythropoiesisPlatelet Activating FactorThrombinEndothelial CellsPlatelet Function TestsLeukemia, Megakaryoblastic, AcuteSignal TransductionAdenosine DiphosphateBleeding TimeHematopoietic Stem Cell MobilizationGrowth SubstancesHematopoietic Cell Growth FactorsFibrinogenStem Cell TransplantationPolyethylene GlycolsTime FactorsGene Expression Regulation, DevelopmentalTranscription FactorsHematopoietic Stem Cell TransplantationCytoplasmic GranulesNeurogenesisProto-Oncogene ProteinsBlood CellsCell LineGPI-Linked Proteinsvon Willebrand FactorProto-Oncogene Proteins c-kitCell Culture TechniquesLymphoid Progenitor CellsPrimary MyelofibrosisChemokine CXCL12P-SelectinAdult Stem CellsErythroid CellsCell SurvivalBlood Platelet DisordersMolecular Sequence DataGene Expression RegulationCulture Media, Serum-Free