Abstract
DNA topoisomerases are essential for the survival of prokaryotic and eukaryotic organisms. Topoisomerases inhibitors, due to their capacity to induce DNA breaking, can exhibit interesting antitumor properties. While there are many potent antitumor agents which target topoisomerase II, relatively few families of specific topoisomerase I inhibitors have been identified. The present review describes a new family of topoisomerase I inhibitors, analogues of the bacterial metabolite rebeccamycin. These compounds possess an indolocarbazole chromophore onto which is attached a sugar residue. Important structure-activity relationships studies in this series have helped to understand the role of the carbohydrate moiety which is absolutely necessary for topoisomerase I poisoning, the influence of the stereochemistry (α or β) of its linkage to indole, the influence of the functionalities and substitutions on the sugar moiety and on the aromatic framework have been investigated. In addition to their action on DNA, rebeccamycin analogues may inhibit the SR kinase activity of topoisomerase I and therefore constitute a unique family of topoisomerase I poisons quite different from the well known camptothecins.
Current Medicinal Chemistry
Title: Recent Developments of Rebeccamycin Analogues as Topoisomerase I Inhibitors and Antitumor Agents.
Volume: 7 Issue: 12
Author(s): Michelle Prudhomme
Affiliation:
Abstract: DNA topoisomerases are essential for the survival of prokaryotic and eukaryotic organisms. Topoisomerases inhibitors, due to their capacity to induce DNA breaking, can exhibit interesting antitumor properties. While there are many potent antitumor agents which target topoisomerase II, relatively few families of specific topoisomerase I inhibitors have been identified. The present review describes a new family of topoisomerase I inhibitors, analogues of the bacterial metabolite rebeccamycin. These compounds possess an indolocarbazole chromophore onto which is attached a sugar residue. Important structure-activity relationships studies in this series have helped to understand the role of the carbohydrate moiety which is absolutely necessary for topoisomerase I poisoning, the influence of the stereochemistry (α or β) of its linkage to indole, the influence of the functionalities and substitutions on the sugar moiety and on the aromatic framework have been investigated. In addition to their action on DNA, rebeccamycin analogues may inhibit the SR kinase activity of topoisomerase I and therefore constitute a unique family of topoisomerase I poisons quite different from the well known camptothecins.
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Cite this article as:
Prudhomme Michelle, Recent Developments of Rebeccamycin Analogues as Topoisomerase I Inhibitors and Antitumor Agents., Current Medicinal Chemistry 2000; 7 (12) . https://dx.doi.org/10.2174/0929867003374138
DOI https://dx.doi.org/10.2174/0929867003374138 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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