Hydroxamic AcidsHistone Deacetylase InhibitorsHistone DeacetylasesEnzyme InhibitorsAcetylationValproic AcidAntineoplastic AgentsCell Line, TumorPiperidonesHistone Deacetylase 1HistonesDrug SynergismApoptosisUreaseHydroxylaminesIron Chelating AgentsCell ProliferationHistone Deacetylase 2Molecular StructureBenzamidesProtease InhibitorsButyratesCyclin-Dependent Kinase Inhibitor p21Structure-Activity RelationshipStereoisomerismTumor Cells, CulturedMetalloendopeptidasesDrug Screening Assays, AntitumorAsparaginaseInhibitory Concentration 50AmidohydrolasesK562 CellsDrug DesignXenograft Model Antitumor AssaysCell CycleHSP90 Heat-Shock ProteinsDose-Response Relationship, DrugPlant OilsCentrifugationChemistryDrug Evaluation, PreclinicalGene Expression Regulation, NeoplasticChemical PhenomenaAzacitidineZincDown-RegulationCaspasesNeoplasm ProteinsMice, Nude