Proteasome InhibitorsProteasome Endopeptidase ComplexLeupeptinsBoronic AcidsPyrazinesCysteine Proteinase InhibitorsCysteine EndopeptidasesMultienzyme ComplexesProtease InhibitorsAcetylcysteineUbiquitinsUbiquitinApoptosisOligopeptidesUbiquitinationCell Line, TumorLactonesAntineoplastic AgentsMultiple MyelomaProteolysisUbiquitinated ProteinsNF-kappa BCell LinePeptide HydrolasesPolyubiquitinDrug SynergismUbiquitin-Protein LigasesBlotting, WesternEnzyme InhibitorsDown-RegulationChymotrypsinThiostreptonTumor Cells, CulturedCaspasesI-kappa B ProteinsProtein Processing, Post-TranslationalEndoplasmic ReticulumDrug Resistance, NeoplasmProtein SubunitsHeLa CellsSignal TransductionCells, CulturedCell SurvivalTransfectionDose-Response Relationship, DrugProto-Oncogene Proteins c-bcl-2Protein BindingEnzyme ActivationImmunoblottingRNA, Small InterferingPhosphorylationMolecular Sequence DataRNA, MessengerClioquinolAmino Acid SequenceUbiquitin-Conjugating EnzymesUbiquitin-Activating EnzymesMyeloid Cell Leukemia Sequence 1 ProteinCell DeathCalpainMutationProtein TransportCell CycleCaspase 3Protein Synthesis InhibitorsXenograft Model Antitumor AssaysProtein StabilityPyrrolesProteinsEndopeptidasesButanesAutophagyTime FactorsDipeptidesCyclin-Dependent Kinase Inhibitor p27Tumor Suppressor Protein p53DNA-Binding ProteinsCell ProliferationApoptosis Regulatory ProteinsLactams, MacrocyclicCell Cycle ProteinsCell NucleusCOS CellsHydrolysisDrug Screening Assays, AntitumorBenzoquinonesUnfolded Protein ResponseUp-RegulationModels, BiologicalGene Expression RegulationHEK293 CellsImmunoprecipitationTNF-Related Apoptosis-Inducing LigandReverse Transcriptase Polymerase Chain ReactionMolecular ChaperonesAdenosine TriphosphatasesHSP90 Heat-Shock ProteinsTranscription FactorsNeoplasm ProteinsRNA Interference