Myeloproliferative DisordersJanus Kinase 2Polycythemia VeraPrimary MyelofibrosisThrombocythemia, EssentialThrombocytosisLeukemia, Myelogenous, Chronic, BCR-ABL PositiveLeukemia, Myelomonocytic, JuvenileSplenomegalyLeukemia, Myelomonocytic, ChronicHematopoiesis, ExtramedullaryFusion Proteins, bcr-ablReceptors, ThrombopoietinSTAT5 Transcription FactorGenes, ablLeukocytosisOncogene Proteins, FusionBone MarrowHematopoietic Stem Cellsfms-Like Tyrosine Kinase 3Bone Marrow TransplantationMutationLeukemia, Myeloid, AcuteGene Expression Regulation, LeukemicMyelodysplastic-Myeloproliferative DiseasesBone Marrow CellsCell Transformation, NeoplasticBenzamidesProtein-Tyrosine KinasesMyeloid CellsReceptors, ErythropoietinSignal TransductionRetroviridaePyrimidinesLeukemiaMutation, MissenseHematopoiesisPiperazinesLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeTranslocation, GeneticMice, Inbred C57BLProto-Oncogene ProteinsDisease Models, AnimalBone Marrow NeoplasmsTransduction, GeneticJanus KinasesCell ProliferationMice, KnockoutMice, Inbred BALB CLeukemia, Neutrophilic, ChronicMyelodysplastic SyndromesPhenotypeJanus Kinase 1Mice, TransgenicCell LineJanus Kinase 3Flow CytometryRats, Inbred F344Cells, CulturedSTAT Transcription FactorsSarcoma Viruses, MurineMegakaryocytesHypereosinophilic SyndromeLeukemia, MyeloidCell Line, TumorReceptor, Fibroblast Growth Factor, Type 1Moloney murine sarcoma virusAnemia, RefractoryGranulocytesThrombopoietinPolycythemiaLeukemia, Megakaryoblastic, AcutePhiladelphia ChromosomeMyelopoiesisBlast CrisisProto-Oncogene Proteins c-cblF FactorBudd-Chiari Syndrome