Cytotoxicity, ImmunologicKiller Cells, NaturalAntibody-Dependent Cell CytotoxicityCytotoxicity Tests, ImmunologicCell SurvivalPerforinNatural Cytotoxicity Triggering Receptor 1NK Cell Lectin-Like Receptor Subfamily KReceptors, Natural Killer CellNatural Cytotoxicity Triggering Receptor 3Receptors, ImmunologicGranzymesCell Line, TumorK562 CellsPore Forming Cytotoxic ProteinsAntigens, CD56Cell LineKiller Cells, Lymphokine-ActivatedReceptors, IgGLymphocyte ActivationTumor Cells, CulturedCells, CulturedInterleukin-2Flow CytometryInterferon-gammaImmunity, CellularChromium RadioisotopesHistocompatibility Antigens Class IAntineoplastic AgentsImmunological SynapsesMicrotubule-Organizing CenterAntibodies, MonoclonalCell DegranulationLymphocytesDrug Screening Assays, AntitumorMice, Inbred BALB CApoptosisCell DeathT-Lymphocytes, CytotoxicMembrane GlycoproteinsReceptors, KIRSpleenGPI-Linked ProteinsT-LymphocytesLysosomal-Associated Membrane Protein 1Antigens, CDLigandsMice, Inbred C57BLNeoplasms, ExperimentalAntibodies, BispecificImmunotherapyBacterial ToxinsCell ProliferationLymphocyte Function-Associated Antigen-1Coculture TechniquesDose-Response Relationship, DrugNeoplasmsInterleukin-15Receptors, FcCytotoxinsNK Cell Lectin-Like Receptor Subfamily CNK Cell Lectin-Like Receptor Subfamily DInterleukin-12CytokinesAntigens, LyAntigens, CD2Plant ExtractsCytoplasmic GranulesLectins, C-TypeShiga Toxin 2Antigens, Differentiation, T-LymphocyteFas Ligand ProteinRecombinant ProteinsSignal TransductionAntigens, CD3Interleukin-18Vero CellsCricetulusCricetinaeMacrophagesImmunophenotypingTumor Necrosis Factor-alphaDrug SynergismMolecular Sequence DataTime FactorsMice, SCIDImmunoglobulin GMonocytesAntigens, SurfaceTransfectionHLA-C AntigensCell DivisionMelanomaMelanoma, ExperimentalLymphomaCell AdhesionInhibitory Concentration 50Down-RegulationProtein BindingIntracellular Signaling Peptides and Proteins