Calophyllumspecies are sources of calanolides, which inhibit human immunodeficiency virus
type 1 reverse transcriptase (HIV-1 RT). The hexane extract of the leaves fromC. brasiliense
collected in Soconusco, State of Chiapas, Mexico, analyzed by HPLC showed to contain apetalic
acid, calanolides B, and C. It showed potent anti-HIV-1 RT inhibition (IC50=20.2μg/ml), but
was not toxic in mice (LD50=1.99 g/kg). The histological study of the mice treated at the
highest dose revealed no alteration on hepatocytes, and an increase in the number of spleen
megakaryocytes. These results suggest this extract is suitable to continue studies for
developing a phytodrug against HIV-1.
Calophyllumspecies are sources of calanolides, which inhibit human immunodeficiency virustype 1 reverse transcriptase (HIV-1 RT). The hexane extract of the leaves fromC. brasiliensecollected in Soconusco, State of Chiapas, Mexico, analyzed by HPLC showed to contain apetalicacid, calanolides B, and C. It showed potent anti-HIV-1 RT inhibition (IC50=20.2μg/ml), butwas not toxic in mice (LD50=1.99 g/kg). The histological study of the mice treated at thehighest dose revealed no alteration on hepatocytes, and an increase in the number of spleenmegakaryocytes. These results suggest this extract is suitable to continue studies fordeveloping a phytodrug against HIV-1.
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