Abstract:
:Chemotherapy against human African trypanosomiasis relies on four drugs that cause frequent and occasionally severe side-effects. Because human African trypanosomiasis is a disease of poor people in Africa, the traditional market-driven pathways to drug development are not available. One potentially rapid and cost-effective approach to identifying and developing new trypanocidal drugs would be high throughput-screening of existing drugs already approved for other uses, as well as clinical candidates in late development. We have developed an ATP-bioluminescence assay that could be used to rapidly and efficiently screen compound libraries against trypanosomes in a high throughput-screening format to validate this notion. We screened a collection of 2160 FDA-approved drugs, bioactive compounds and natural products to identify hits that were cytotoxic to cultured Trypanosoma brucei at a concentration of 1 mum or less. This meant that any hit identified would be effective at a concentration readily achievable by standard drug dosing in humans. From the screen, 35 hits from seven different drug categories were identified. These included the two approved trypanocidal drugs, suramin and pentamidine, several other drugs suspected but never validated as trypanocidal, and 17 novel trypanocidal drugs.
journal_name
Chem Biol Drug Desjournal_title
Chemical biology & drug designauthors
Mackey ZB,Baca AM,Mallari JP,Apsel B,Shelat A,Hansell EJ,Chiang PK,Wolff B,Guy KR,Williams J,McKerrow JHdoi
10.1111/j.1747-0285.2006.00389.xsubject
Has Abstractpub_date
2006-05-01 00:00:00pages
355-63issue
5eissn
1747-0277issn
1747-0285pii
JPP389journal_volume
67pub_type
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