Planta Med 2014; 80(11): 902-906
DOI: 10.1055/s-0034-1382826
Biological and Pharmacological Activity
Original Papers
Georg Thieme Verlag KG Stuttgart · New York

In Vitro and In Vivo Activity of Benzo[c]phenanthridines against Leishmania amazonensis

Denis Castillo
1   Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
,
Michel Sauvain
2   Institut de Recherche pour le Développement (IRD), Mission IRD, Lima, Peru
3   Institut de Recherche pour le Développement (IRD), Laboratoire Pharmadev, Toulouse, France
,
Marion Rivaud
3   Institut de Recherche pour le Développement (IRD), Laboratoire Pharmadev, Toulouse, France
4   Université de Toulouse, UPS, Laboratoire Pharmadev, Faculté de Pharmacie, Toulouse, France
,
Valérie Jullian
3   Institut de Recherche pour le Développement (IRD), Laboratoire Pharmadev, Toulouse, France
4   Université de Toulouse, UPS, Laboratoire Pharmadev, Faculté de Pharmacie, Toulouse, France
› Institutsangaben
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Publikationsverlauf

received 03. Oktober 2013
revised 03. Juni 2014

accepted 05. Juni 2014

Publikationsdatum:
16. Juli 2014 (online)

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Abstract

Seven benzo[c]phenanthridines, synthetic or isolated from Zanthoxylum rhoifolium root bark, were evaluated against Leishmania amazonensis axenic amastigotes. Five of them were considered leishmanicidal, with IC50 values ranging from 0.03 to 0.54 µM, and were evaluated on intramacrophagic amastigotes of L. amazonensis. Chelerythrine displayed the best activity (IC50 = 0.5 µM), which was in the same range as the reference compound amphotericin B (IC50 = 0.4 µM). In vivo studies with chelerythrine, avicine, and fagaridine on a model of mice cutaneous leishmaniasis resulted in the identification of fagaridine as the most active compound. Fagaridine decreased the parasitic burden more than 50 % at the 3rd and 6th weeks after the end of treatment.

Supporting Information