Journal
MOLECULAR AND BIOCHEMICAL PARASITOLOGY
Volume 214, Issue -, Pages 112-120Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molbiopara.2017.05.001
Keywords
Gold; NHC complexes; Organometallics; Anti-parasitic drugs; Cytoskeleton; Trypanosomes
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Funding
- Deutsche Forschungsgemeinschaft [Scho 402/12-1]
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Two gold(I) N-heterocyclic carbene complexes la and lb were tested for their anti-trypanosomal activity against Trypanosoma brucei parasites. Both gold compounds exhibited excellent anti-trypanosomal activity (IC50 = 0.9-3.0 nM). The effects of the gold complexes 1a and 1b on the T. b. brucei cytoskeleton were evaluated. Rapid detachment of the flagellum from the cell body occurred after treatment with the gold complexes. In addition, a quick and complete degeneration of the parasitic cytoskeleton was induced by the gold complexes, only the microtubules of the detached flagellum remained intact. Both gold compounds la and lb feature selective anti-trypanosomal agents and were distinctly more active against T. b. brucei cells than against human HeLa cells. Thus, the gold complexes 1a and 1b feature promising drug candidates for the treatment of trypanosome infections such as sleeping sickness (human African Trypanosomiasis caused by Trypanosoma brucei parasites).
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