AnoikisOsteosarcomaBone NeoplasmsCell Line, TumorTumor Cells, CulturedApoptosisOsteoblastsCell ProliferationCathepsin FGene Expression Regulation, NeoplasticOsteocalcinAntineoplastic AgentsCaspasesCell SurvivalCell CycleTumor Suppressor Protein p53RNA, MessengerTransfectionAlkaline PhosphataseCell LineMice, NudeBlotting, WesternDoxorubicinCell DivisionEnzyme ActivationNeoplasm InvasivenessFlow CytometryCalcitriolSignal TransductionFemoral NeoplasmsCaspase 3Cell MovementMitochondriaBone and BonesApoptosis Regulatory ProteinsCollagenReverse Transcriptase Polymerase Chain ReactionBase SequencePhosphorylationMolecular Sequence DataProto-Oncogene Proteins c-bcl-2Transcription, GeneticCell DifferentiationRNA, Small InterferingPoly(ADP-ribose) PolymerasesFormazansNeoplasm MetastasisInhibitor of Apoptosis ProteinsDNA FragmentationTransplantation, HeterologousOsteosarcoma, JuxtacorticalDown-RegulationNeoplasm TransplantationCells, CulturedCell AdhesionDrug Resistance, NeoplasmCore Binding Factor Alpha 1 SubunitProto-Oncogene ProteinsAntibiotics, AntineoplasticCell Growth ProcessesAmino Acid SequenceTetrazolium SaltsLung NeoplasmsCisplatin