| A type II pathway for fatty acid biosynthesis presents drug targets in Plasmodium falciparum. | |
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MedLine Citation:
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PMID: 12499205 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It has long been held that the malaria parasite, Plasmodium sp., is incapable of de novo fatty acid synthesis. This view has recently been overturned with the emergence of data for the presence of a fatty acid biosynthetic pathway in the relict plastid of P. falciparum (known as the apicoplast). This pathway represents the type II pathway common to plant chloroplasts and bacteria but distinct from the type I pathway of animals including humans. Specific inhibitors of the type II pathway, thiolactomycin and triclosan, have been reported to target this Plasmodium pathway. Here we report further inhibitors of the plastid-based pathway that inhibit Plasmodium parasites. These include several analogues of thiolactomycin, two with sixfold-greater efficacy than thiolactomycin. We also report that parasites respond very rapidly to such inhibitors and that the greatest sensitivity is seen in ring-stage parasites. This study substantiates the importance of fatty acid synthesis for blood-stage parasite survival and shows that this pathway provides scope for the development of novel antimalarial drugs. |
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Authors:
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Ross F Waller; Stuart A Ralph; Michael B Reed; Vanessa Su; James D Douglas; David E Minnikin; Alan F Cowman; Gurdyal S Besra; Geoffrey I McFadden |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Antimicrobial agents and chemotherapy Volume: 47 ISSN: 0066-4804 ISO Abbreviation: Antimicrob. Agents Chemother. Publication Date: 2003 Jan |
Date Detail:
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Created Date: 2002-12-24 Completed Date: 2003-06-03 Revised Date: 2013-06-09 |
Medline Journal Info:
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Nlm Unique ID: 0315061 Medline TA: Antimicrob Agents Chemother Country: United States |
Other Details:
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Languages: eng Pagination: 297-301 Citation Subset: IM |
Affiliation:
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School of Biochemistry and Molecular Biology, University of Melbourne, Melbourne, Victoria 3010, Australia. rossfw@unimelb.edu.au |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Fatty Acids / biosynthesis* Plasmodium falciparum / drug effects*, metabolism Structure-Activity Relationship Thiophenes / pharmacology* |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids; 0/Thiophenes; 82079-32-1/thiolactomycin |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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