Cytotoxic and Antileishmanial Components from the Bark Extract of Ruyschia phylladenia from Monteverde, Costa Rica
2017
: The bark of Ruyschiaphylladenia was collected from Monteverde, Costa Rica, and extracted with acetone. Bioactivity-directed chromatographic separation of the crude acetone bark extract of R. phylladenia led to isolation and identification of lupeol, betulinic acid, and isofraxidin. Lupeol and betulinic acid showed in-vitro cytotoxic activity to MCF-7, MDA-MB-231, and 5637 human tumor cell lines. Isofraxidin was not cytotoxic, but did show antileishmanial activity to Leishmania amazonensis promastigotes.
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