title: Effects of 6-arylamino-5,8-quinolinediones and 6-chloro-7-arylamino-5,8-isoquinolinediones on NAD(P)H: quinone oxidoreductase (NQO1) activity and their cytotoxic potential.
abstract: Synthesized 6-arylamino-5,8-quinolinediones 4a-4j and 6-chloro-7-arylamino-5,8-isoquinolinediones 5a-5g were evaluated for effects on NAD(P)H: quinone oxidoreductase (NQO1) activity with the cytosolic fractions derived from cultured human lung cancer cells and their cytotoxicity in cultured several human solid cancer cell lines. The 5,8-quinolinediones 4 and 5,8-isoquinolinediones 5 affected the reduction potential by NQO1 activity and showed a potent cytotoxic activity against human cancer cell lines. The tested compounds 4a, 5c, 5f, and 5g were considered as more potent cytotoxic agents. The compounds 4d, 5b, 5c, 5e and 5g were comparable modulators of NQO1 activity.
authors.affiliation: College of Pharmacy, Ewha Womans University, 11-1 Daehyun-dong, Seoul 120-750, Korea. ckryu@mm.ewha.ac.kr
authors.forename: C K
authors.initials: CK
authors.lastname: Ryu
authors.forename: H J
authors.initials: HJ
authors.lastname: Jeong
authors.forename: S K
authors.initials: SK
authors.lastname: Lee
authors.forename: H J
authors.initials: HJ
authors.lastname: You
authors.forename: K U
authors.initials: KU
authors.lastname: Choi
authors.forename: J Y
authors.initials: JY
authors.lastname: Shim
authors.forename: Y H
authors.initials: YH
authors.lastname: Heo
authors.forename: C O
authors.initials: CO
authors.lastname: Lee
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D002470:Cell Survival / Q000187:drug effects; D004791:Enzyme Inhibitors / Q000138:chemical synthesis* / Q000494:pharmacology*; D006801:Humans; D007202:Indicators and Reagents; D016660:NAD(P)H Dehydrogenase (Quinone) / Q000037:antagonists & inhibitors*; D015363:Quinolones / Q000138:chemical synthesis* / Q000494:pharmacology*; D011809:Quinones / Q000138:chemical synthesis* / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D004791:Enzyme Inhibitors; D007202:Indicators and Reagents; D015363:Quinolones; D011809:Quinones; D016660:NAD(P)H Dehydrogenase (Quinone)