Anthranoid Compounds with Antiprotozoal Activity from Vismia orientalis
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Date
2004-08
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Planta Medica
Abstract
A phytochemical investigation of the 80% ethanolic extract of stem bark of Vismia orientalis Engl. (Guttiferae or Clusiaceae), a plant used in traditional medicine in Tanzania, resulted in the isolation and spectroscopic characterisation of 3-geranyloxy-6-methyl-1,8-dihydroxyanthraquinone, emodin, vismione D and bianthrone A1. Vismione D exhibited a broad range of antiprotozoal activities against Trypanosoma brucei rhodesiense and T. cruzi (IC50 < 10 μg/mL), Leishmania donovani (IC50 0.37 μg/mL) and Plasmodium falciparum strain K1 (IC50 1.0 μg/mL). However, it was also slightly cytotoxic against human L6 cells (IC50 4.1 μg/mL). Emodin showed antileishmanial activity (IC50 2.0 μg/mL), while its IC50 against L6 cells was 20.3 μg/mL. Other antiprotozoal activities observed for emodin against both Trypanosoma species and P. falciparum, for bianthrone A1 against T. b. rhodesiense and P. falciparum, and for 3-geranyloxy-6-methyl-1,8-dihydroxyanthraquinone against T. b. rhodesiense, L. donovani and P. falciparum were in the range of 10 to 50 μg/mL. None of the compounds showed antibacterial or antiviral (including also HIV) activity.
Key words
Vismia orientalis - Guttiferae - Clusiaceae - 3-geranyloxy-6-methyl-1,8-dihydroxyanthraquinone - bianthrone A1 - emodin - vismione D - Plasmodium falciparum - Leishmania - Trypanosoma
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Keywords
Vismia orientalis, Guttiferae, Trypanosoma
Citation
Mbwambo, Z.H., Apers, S., Moshi, M.J., Kapingu, M.C., Van Miert, S., Claeys, M., Brun, R., Cos, P., Pieters, L. and Vlietinck, A., 2004. Anthranoid compounds with antiprotozoal activity from Vismia orientalis. Planta Medica, 70(08), pp.706-710.