Leukemia, Lymphocytic, Chronic, B-CellCell SurvivalApoptosisVidarabineGene Expression Regulation, LeukemicZAP-70 Protein-Tyrosine KinaseB-LymphocytesCell Line, TumorMyeloid Cell Leukemia Sequence 1 ProteinAntineoplastic AgentsMicrobial ViabilityCells, CulturedLeukemia, LymphoidReceptors, Antigen, B-CellTumor Cells, CulturedCell ProliferationProto-Oncogene Proteins c-bcl-2Flow CytometryAntigens, CD38CD40 LigandSignal TransductionCell DeathFetal ViabilityQuinazolinonesDrug Resistance, NeoplasmDose-Response Relationship, DrugTissue SurvivalLymphocytesCaspase 3Immunoglobulin Heavy ChainsLeukemic InfiltrationTetrazolium SaltsNitrophenolsBlotting, WesternCaspasesCladribineChlorambucilMutationImmunoglobulin Variable RegionGenes, Immunoglobulin Heavy ChainAntigens, CD5Cell LineTime FactorsMembrane Potential, MitochondrialLeukemia, B-CellCyclic Nucleotide Phosphodiesterases, Type 7Antigens, CD40RNA, Small InterferingRNA, MessengerThiazolesDrug Screening Assays, AntitumorDrug SynergismReverse Transcriptase Polymerase Chain ReactionMitochondriaApoptosis Regulatory ProteinsOxazinesBiphenyl Compoundsbcl-2-Associated X ProteinStromal CellsAntibodies, Monoclonal, Murine-DerivedT-LymphocytesPhosphorylationOxidative StressPyrimidinesNeoplasm ProteinsReactive Oxygen SpeciesCell CycleSulfonamidesProtein Kinase InhibitorsAntibodies, MonoclonalTrypan BlueTumor Suppressor Protein p53Coculture TechniquesProto-Oncogene ProteinsL-Lactate DehydrogenaseMolecular Sequence DataAntigens, CDTumor MicroenvironmentAntigens, CD19ImmunophenotypingGene Expression Regulation, NeoplasticPiperazinesDrug Evaluation, PreclinicalUp-RegulationHydrogen PeroxideNeutral RedDown-RegulationCell Culture TechniquesEnzyme ActivationCell DivisionCytoprotectionCytochromes cPropidiumDNA FragmentationCryopreservationSaccharomyces cerevisiaeIntegrin alpha4Lymphocyte ActivationColoring AgentsPlant Extracts