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Etoposide: Discovery and Medicinal Chemistry

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Etoposide is an antitumor agent currently in clinical use for the treatment of small cell lung cancer, testicular cancer and lymphomas. Since the introduction of etoposide in 1971, its mechanism of action and potent antineoplastic activity has served as the impetus for intensive research activities in chemistry and biology. This drug acts by stabilizing a normally transient DNA-topoisomerase II complex, thus increasing the concentration of double-stranded DNA breaks. This phenomenon triggers mutagenic and cell death pathways. The function of topoisomerase II is understood in some detail, as is the mechanism of inhibition of etoposide at a molecular level. Etoposide has shortcomings of limited neoplastic activity against several solid tumors such as non-small cell lung cancer, cross-resistance to MDR tumor cell lines and low bioavailability. The design and synthesis of etoposide analogs is an activity of fundamental interest to the field of cancer chemotherapy. In the first part, this article is a survey of the discovery of etoposide, the DNA topoisomerase II structure and mechanism, and the models for drug-enzyme interaction. The last part is concerned with the search for new etoposide analogs based upon an empirical design.

Keywords: DNA-topoisomerase; Etoposide; double-stranded DNA; neoplastic

Document Type: Review Article


Affiliations: UMR 176 CNRS-Institut Curie, Section de Recherche, 26 rue d'Ulm, 75248 Paris Cedex 05, France

Publication date: September 1, 2004

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  • Current Medicinal Chemistry covers all the latest and outstanding developments in medicinal chemistry and rational drug design. Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of the current topics in medicinal chemistry. Current Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments.

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