title: Angiogenesis inhibitor TNP-470: cytotoxic effects on human neoplastic cell lines.
abstract: Angiostatic substance TNP-470 displayed moderate cytotoxicity towards human leukemia HL-60, HL-60/ADR, HL-60/VCR and myeloma ARH77 cell lines with IC50 in the range 5-10 microM of concentrations and slightly higher IC50 for myeloma cell line U266. IC50 for ovarian CH-1, A2780 and A2780/ADR cell lines was in the range 10-15 microM with the exception of platinum-resistant SKOV3 cell line (more than 40 microM ). The IC50 values for MDA-MB-231 and MCF-7 breast carcinoma cell lines were 15 and 25 microM, respectively. In human hemopoietic neoplastic cell lines examined, TNP-470 induced the appearance of subpopulation with sub-G0 DNA content, suggesting the apoptosis-inducing potential of TNP-470 in these cells. No TNP-470-induced drug uptake modulation in drug-resistant leukemia cell line HL-60/VCR was observed. TNP-470 induced accumulation of cells in G0/G1 phase of cell cycle. There was no TNP-470-induced inhibition of MMP collagenase activity or MMP (MMP2 and MMP9) production in the human fibrosarcoma cells HT 1080 in vitro.
authors.affiliation: Cancer Research Institute, Slovak Academy of Sciences, Bratislava, Slovak Republic.
authors.forename: O
authors.initials: O
authors.lastname: Sedláková
authors.forename: J
authors.initials: J
authors.lastname: Sedlák
authors.forename: L
authors.initials: L
authors.lastname: Hunáková
authors.forename: J
authors.initials: J
authors.lastname: Jakubíková
authors.forename: J
authors.initials: J
authors.lastname: Duraj
authors.forename: M
authors.initials: M
authors.lastname: Sulíková
authors.forename: J
authors.initials: J
authors.lastname: Chovancová
authors.forename: B
authors.initials: B
authors.lastname: Chorváth
mesh_terms: D020533:Angiogenesis Inhibitors / Q000494:pharmacology*; D000903:Antibiotics, Antineoplastic / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects; D002453:Cell Cycle / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D003510:Cyclohexanes; D004305:Dose-Response Relationship, Drug; D006801:Humans; D000077609:O-(Chloroacetylcarbamoyl)fumagillol; D012717:Sesquiterpenes / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
chemical_list: D020533:Angiogenesis Inhibitors; D000903:Antibiotics, Antineoplastic; D003510:Cyclohexanes; D012717:Sesquiterpenes; D000077609:O-(Chloroacetylcarbamoyl)fumagillol