Phenanthroline-7-one derivatives and their therapeutic uses
申请人:Laboratoire L. Lafon
公开号:US06809096B1
公开(公告)日:2004-10-26
A pharmaceutical composition including an efficient amount of a compound selected among the compounds of formulae (I) and (Ia). The compounds have interesting cytotoxic properties leading to a therapeutic use as antitumoral medicines.
Synthesis and in vitro antitumor activity of ring C and D-substituted phenanthrolin-7-one derivatives, analogues of the marine pyridoacridine alkaloids ascididemin and meridine
D-substituted phenanthrolin-7-ones, analogues of the marine pyridoacridines meridine and ascididemin have been synthesized on the basis of Diels-Alder reactions involving quinoline-5,8-dione and 2- (or un)-substituted-N,N-dimethylhydrazones. All the compounds were evaluated for in vitro cytotoxic activity against 12 distinct human cancer cell lines. They all exhibit cytotoxic activity with IC(50) values at least
Mechanism of action studies of cytotoxic marine alkaloids: ascididemin exhibits thiol-dependent oxidative DNA cleavage
作者:Sandra S Matsumoto、Mathew H Sidford、Joseph A Holden、Louis R Barrows、Brent R Copp
DOI:10.1016/s0040-4039(00)00011-3
日期:2000.3
The cytotoxic marine alkaloid ascididemin has been shown to be a thiol-dependent DNA cleaving agent. Previous mechanisms of action studies have concluded that DNA and/or the DNA processing enzyme topoisomerase II were the cellular targets for the alkaloid - this is the first direct evidence that a pyridoacridone alkaloid can cause DNA cleavage under physiological conditions. (C) 2000 Elsevier Science Ltd. All rights reserved.
DERIVES DE PHENANTHROLINE-7-ONES ET LEURS APPLICATIONS EN THERAPEUTIQUE