1. Academic Validation
  2. Chemical genetics of Plasmodium falciparum

Chemical genetics of Plasmodium falciparum

  • Nature. 2010 May 20;465(7296):311-5. doi: 10.1038/nature09099.
W Armand Guiguemde 1 Anang A Shelat David Bouck Sandra Duffy Gregory J Crowther Paul H Davis David C Smithson Michele Connelly Julie Clark Fangyi Zhu María B Jiménez-Díaz María S Martinez Emily B Wilson Abhai K Tripathi Jiri Gut Elizabeth R Sharlow Ian Bathurst Farah El Mazouni Joseph W Fowble Isaac Forquer Paula L McGinley Steve Castro Iñigo Angulo-Barturen Santiago Ferrer Philip J Rosenthal Joseph L Derisi David J Sullivan John S Lazo David S Roos Michael K Riscoe Margaret A Phillips Pradipsinh K Rathod Wesley C Van Voorhis Vicky M Avery R Kiplin Guy
Affiliations

Affiliation

  • 1 Department of Chemical Biology and Therapeutics, St Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.
Abstract

Malaria caused by Plasmodium falciparum is a disease that is responsible for 880,000 deaths per year worldwide. Vaccine development has proved difficult and resistance has emerged for most antimalarial drugs. To discover new antimalarial chemotypes, we have used a phenotypic forward chemical genetic approach to assay 309,474 chemicals. Here we disclose structures and biological activity of the entire library-many of which showed potent in vitro activity against drug-resistant P. falciparum strains-and detailed profiling of 172 representative candidates. A reverse chemical genetic study identified 19 new inhibitors of 4 validated drug targets and 15 novel binders among 61 malarial proteins. Phylochemogenetic profiling in several organisms revealed similarities between Toxoplasma gondii and mammalian cell lines and dissimilarities between P. falciparum and related protozoans. One exemplar compound displayed efficacy in a murine model. Our findings provide the scientific community with new starting points for malaria drug discovery.

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