title: Cytotoxic effects of pyridino[2,3-f]indole-4,9-diones on human tumor cell lines.
abstract: The cytotoxicities of pyridino[2,3-f]indole-4,9-dione derivatives were examined against human lung tumor cell lines (A 549), human ovarian tumor cell lines (SK-OV-3), human melanoma tumor cell lines (SK-MEL-2), human CNS tumor cell lines (XF 498) and human colon tumor cell lines (HCT 15) in vitro using a Sulforhodamine B assay. 3-Ethoxycarbonyl-1-(2-methoxyethyl)-2-methyl-1H-pyridino[2,3-f]ind ole-4,9-dione (5) showed excellent cytotoxicity against XF 498 and HCT 15. The ED50 values of 5 were 0.006 microg/ml against XF 498 and 0.073 microg/ml against HCT 15, while those of doxorubicin were 0.012 and 0.264 microg/ml, respectively. 1-Benzyl-3-ethoxycarbonyl-2-methyl-1H-pyridino[2,3-f]indole-4,9-di one (7) (ED50 value 0.065 microg/ml) was also significantly more cytotoxic against HCT 15 compared with doxorubicin.
authors.affiliation: Division of Medicinal Chemistry, College of Pharmacy, Ewha Womans University, Seoul, Korea.
authors.forename: M E
authors.initials: ME
authors.lastname: Suh
authors.forename: H K
authors.initials: HK
authors.lastname: Park
authors.forename: H W
authors.initials: HW
authors.lastname: Yoo
authors.forename: C O
authors.initials: CO
authors.lastname: Lee
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology*; D002455:Cell Division / Q000187:drug effects; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007211:Indoles / Q000494:pharmacology*; D011725:Pyridines / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D007211:Indoles; D011725:Pyridines