title: Synthesis and structure-activity relationship studies of 4,11-diaminonaphtho[2,3-f]indole-5,10-diones.
abstract: We describe the synthesis of derivatives of 4,11-diaminonaphtho[2,3-f]indole-5,10-dione and their cytotoxicity for human tumor cells that express major determinants of altered anticancer drug response, the efflux pump P-glycoprotein, and non-functional p53. Nucleophilic substitution of methoxy groups in 4,11-dimethoxynaphtho[2,3-f]indole-5,10-dione with various ethylenediamines yielded the derivatives of 4,11-diaminonaphtho[2,3-f]indole-5,10-dione, the indole containing analogues of the antitumor agent ametantrone. The cytotoxicity of novel compounds for multidrug resistant, P-glycoprotein-expressing tumor cells is highly dependent on the N-substituent at the terminal amino group of the ethylenediamine moiety. Whereas p53 null colon carcinoma cells were less sensitive to the reference drug doxorubicin than their counterparts with wild type p53, the majority of novel naphthoindole derivatives were equally potent for both cell lines, regardless of the p53 status.
authors.affiliation: G.F. Gause Institute of New Antibiotics, Russian Academy of Medical Sciences, 11 B. Pirogovskaya Street, Moscow 119021, Russia. mnp@space.ru
authors.forename: Andrey E
authors.initials: AE
authors.lastname: Shchekotikhin
authors.forename: Valeria A
authors.initials: VA
authors.lastname: Glazunova
authors.forename: Yuri N
authors.initials: YN
authors.lastname: Luzikov
authors.forename: Vladimir N
authors.initials: VN
authors.lastname: Buyanov
authors.forename: Olga Yu
authors.initials: OY
authors.lastname: Susova
authors.forename: Alexander A
authors.initials: AA
authors.lastname: Shtil
authors.forename: Maria N
authors.initials: MN
authors.lastname: Preobrazhenskaya
mesh_terms: D002277:Carcinoma / Q000188:drug therapy*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D003110:Colonic Neoplasms / Q000188:drug therapy*; D004354:Drug Screening Assays, Antitumor; D045325:HCT116 Cells; D006801:Humans; D007211:Indoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D020014:K562 Cells; D007938:Leukemia / Q000188:drug therapy*; D015394:Molecular Structure; D009281:Naphthalenes / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: C513022:4,11-diaminonaphtho(2,3-f)indole-5,10-dione; D007211:Indoles; D009281:Naphthalenes