Perspectives for New Drugs Against Trypanosomiasis and Leishmaniasis

Authors: Barrett, M.P.; Gilbert, I.H.

Source: Current Topics in Medicinal Chemistry, Volume 2, Number 5, 1 May 2002 , pp. 471-482(12)

Publisher: Bentham Science Publishers

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Abstract:

Diseases caused by pathogenic trypanosomatids cause great suffering throughout the developing world. New drugs for these diseases are urgently needed. Recent technological advances have permitted the identification and validation of numerous drug targets in these organisms. However, efforts to develop inhibitors of these targets, that may then be taken forward for development into new drugs, have been comparatively scarce. In this review we discuss the design, synthesis and evaluation of inhibitors of two drug targets in trypanosomatids, 6- phosphogluconate dehydrogenase, the third enzyme of the pentose phosphate pathway, and dihydrofolate reductase, a key enzyme involved in DNA synthesis. Enzyme inhibitors can only be useful as drugs if they can enter cells and bind to their targets. Therefore we also discuss approaches to designing molecules that can specifically cross the plasma membrane of African trypanosomes via unusual nutrient transporters.

Keywords: trypanosomiasis; leishmaniasis; phenanthridinium compound; trypanocidal drugs; megazol

Document Type: Review article

DOI: 10.2174/1568026024607427

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