CamptothecinTopoisomerase I InhibitorsTopotecanOrganosilicon CompoundsAntineoplastic Agents, PhytogenicDNA Topoisomerases, Type IAntineoplastic AgentsNeoplasmsDrug Screening Assays, AntitumorLeukemia P388Xenograft Model Antitumor AssaysCell Line, TumorLeukemia L1210Antibiotics, AntineoplasticTumor Cells, CulturedSarcoma 180Mice, NudeStructure-Activity RelationshipDNA DamageApoptosisAmsacrineMolecular StructureCell SurvivalTopoisomerase II InhibitorsEnzyme InhibitorsTopoisomerase InhibitorsInhibitory Concentration 50Neoplasm TransplantationNeoplasms, ExperimentalDose-Response Relationship, DrugIntercalating AgentsCamptothecaDNA Topoisomerases, Type IITeniposideMelanoma, ExperimentalDNADrug SynergismDoxorubicinKB CellsEllipticinesCell DivisionCell CycleStreptonigrinDrug Resistance, NeoplasmMice, Inbred BALB CCell ProliferationDrug DesignDrug ResistanceEtoposideTriaziquoneKineticsLactonesCisplatinColonic NeoplasmsAcridinesMaytansineDrug Evaluation, PreclinicalTransplantation, HeterologousPyronesCell LineAlkaloidsNaphthacenesLeukemia L5178DioxolesStereoisomerismLung NeoplasmsAcridonesIndolesAminoacridinesAziridinesProdrugsDNA, NeoplasmMolecular Sequence DataBiotransformationRubiaceaeEnediynesNaphthoquinonesChromomycinsHT29 CellsIndenesAntineoplastic Agents, AlkylatingOrganic Chemistry PhenomenaFuransMenogarilMice, Inbred C57BLAphidicolinTime FactorsMelanomaPaclitaxelAcronine