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Science 17 October 1980:
Vol. 210. no. 4467, pp. 332 - 334
DOI: 10.1126/science.6775372

Articles

Science, Vol 210, Issue 4467, 332-334
Copyright © 1980 by American Association for the Advancement of Science


articles

Polyamine metabolism: a potential therapeutic target in trypanosomes

CJ Bacchi, HC Nathan, SH Hutner, PP McCann, and A Sjoerdsma

alpha-Difluoromethylornithine (RMI 71,782), a specific irreversible inhibitor of the first step in polyamine biosynthesis, that is, the formation of putrescine from ornithine by ornithine decarboxylase, cures mice infected with a virulent, rodent-passaged strain of Trypanosoma brucei brucei. This parasite is closely related to the trypanosomes that cause human sleeping sickness. The drug, which is remarkably nontoxic, was effective when administered in drinking water or by intubation. The ability of the compound to inhibit ornithine decarboxylase in vitro was demonstrated by the reduced amounts of putrescine synthesized from tritiated ornithine in Trypanosoma brucei suspensions. These observations direct attention to polyamine metabolism as a target for chemotherapy of parasitic diseases.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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RNA Interference-Mediated Silencing of Ornithine Decarboxylase and Spermidine Synthase Genes in Trypanosoma brucei Provides Insight into Regulation of Polyamine Biosynthesis.
Y. Xiao, D. E. McCloskey, and M. A. Phillips (2009)
Eukaryot. Cell 8, 747-755
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Enantioselective and Nonlinear Intestinal Absorption of Eflornithine in the Rat.
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Safety and effectiveness of first line eflornithine for Trypanosoma brucei gambiense sleeping sickness in Sudan: cohort study.
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Phylogenetic Diversity and the Structural Basis of Substrate Specificity in the beta/{alpha}-Barrel Fold Basic Amino Acid Decarboxylases.
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Allosteric regulation of an essential trypanosome polyamine biosynthetic enzyme by a catalytically dead homolog.
E. K. Willert, R. Fitzpatrick, and M. A. Phillips (2007)
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X-ray Structure Determination of Trypanosoma brucei Ornithine Decarboxylase Bound to D-Ornithine and to G418: INSIGHTS INTO SUBSTRATE BINDING AND ODC CONFORMATIONAL FLEXIBILITY.
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Development of Difluoromethylornithine (DFMO) as a Chemoprevention Agent.
F. L. Meyskens Jr. and E. W. Gerner (1999)
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More surprises from Kinetoplastida.
J. E. Donelson, M. J. Gardner, and N. M. El-Sayed (1999)
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Rat Antizyme Inhibits the Activity but Does Not Promote the Degradation of Mouse Ornithine Decarboxylase in Trypanosoma brucei.
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