Evoxanthine is an alkaloid that has been found in O. renieri and has antimalarial and anticancer activities.1,2 It is active against P. falciparum with an IC50 value of 67.6 μg/ml.1 Evoxanthine decreases proliferation of nine sensitive and drug-resistant cancer cell lines (IC50s = 6.11-80.99 μM).2
|1. Khalid, S.A., Farouk, A., Geary, T.G., et al. Potential antimalarial candidates from African plants: And in vitro approach using Plasmodium falciparum. J. Ethnopharmacol. 15(2), 201-209 (1986).|2. Kuete, V., Fouotsa, H., Mbaveng, A.T., et al. Cytotoxicity of a naturally occurring furoquinoline alkaloid and four acridone alkaloids towards multi-factorial drug-resistant cancer cells. Phytomedicine 22(10), 946-951 (2015).