Abstract
The hydroxy group in 9-hydroxyellipticines increases the apparent affinity for DNA, stabilisation of toposiomerase II-DNA cleavable complex, oxidation to reactive quinone-imine intermediates, phosphorylation of p53 suppressor proteins and cytotoxicity relative to the parent ellipticines. Recent studies have focused on the mechanism of inhibition of phosphorylation of the mutant type of p53 protein, structural characterisation of the drug-DNA complex, the synthesis of carbohydrate derivatives and calculations of physical parameters, including dipole moments, as potential screens to allow identification of new active derivatives. Derivatisation at the 2- and 9-positions has lead to significant improvements in the in vivo activity of the 9- hydroxyellipticine derivatives and has provided important insights into the mechanism of action of these compounds.
Keywords: 9-hydroxyellipticine, chemotherapy agents, ellipticine, ochrosia elliptica, 90he4
Mini-Reviews in Medicinal Chemistry
Title: 9-Hydroxyellipticine and Derivatives as Chemotherapy Agents
Volume: 3 Issue: 2
Author(s): Margaret M. Harding and Annaleise R. Grummitt
Affiliation:
Keywords: 9-hydroxyellipticine, chemotherapy agents, ellipticine, ochrosia elliptica, 90he4
Abstract: The hydroxy group in 9-hydroxyellipticines increases the apparent affinity for DNA, stabilisation of toposiomerase II-DNA cleavable complex, oxidation to reactive quinone-imine intermediates, phosphorylation of p53 suppressor proteins and cytotoxicity relative to the parent ellipticines. Recent studies have focused on the mechanism of inhibition of phosphorylation of the mutant type of p53 protein, structural characterisation of the drug-DNA complex, the synthesis of carbohydrate derivatives and calculations of physical parameters, including dipole moments, as potential screens to allow identification of new active derivatives. Derivatisation at the 2- and 9-positions has lead to significant improvements in the in vivo activity of the 9- hydroxyellipticine derivatives and has provided important insights into the mechanism of action of these compounds.
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Cite this article as:
Harding M. Margaret and Grummitt R. Annaleise, 9-Hydroxyellipticine and Derivatives as Chemotherapy Agents, Mini-Reviews in Medicinal Chemistry 2003; 3 (2) . https://dx.doi.org/10.2174/1389557033405377
DOI https://dx.doi.org/10.2174/1389557033405377 |
Print ISSN 1389-5575 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5607 |
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