Comparative antiplasmodial, leishmanicidal and antitrypanosomal activities of several biflavonoids |
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Authors: | B Weniger C Vonthron-Sncheau M Kaiser R Brun R Anton |
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Institution: | Pharmacognosie et Biomolécules Naturelles Actives, UMR no 7081, Faculté de Pharmacie, Université Louis Pasteur Strasbourg, Illkirch, France. |
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Abstract: | The antiplasmodial, leishmanicidal and antitrypanosomal activities of eight natural biflavonoids were estimated in vitro on a chloroquine-resistant strain of Plasmodium falciparum, axenically grown Leishmania donovani amastigotes and Trypanosoma cruzi trypomastigotes and Trypanosoma brucei rhodesiense bloodstream forms. Lanaroflavone showed the highest antiplasmodial activity (IC(50) = 0.48 microM), isoginkgetin was the most active leishmanicidal compound (IC(50) = 1.9 microM), whereas ginkgetin (IC(50) = 11 microM) and isoginkgetin (IC(50) = 13 microM) showed the best antitrypanosomal activity in our assays. The cytotoxicity and the selectivity indices for the most active compounds were also estimated. Lanaroflavone exhibited a high selectivity index value (SI = 159), indicating selective antiplasmodial activity. |
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Keywords: | Biflavonoids Antiplasmodial activity Leishmanicidal activity Antitrypanosomal activity Selectivity index |
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