Atividade antitumoral dos extratos e frações obtidos de Didymopanax vinosum (Araliaceae)




Most of the chemotherapeutic agents present an "antiproliferative" activity rather than an "anticance" one. For this reason, there is a growing need for less toxicity and more efficacy and selectivity in antineoplastic drugs. For the last decades, several plant-derived compounds have been successfully used in the treatment of cancer. Due to the great diversity of Brazilian ecosystems, the Cerrado is a rich source of new drugs for many diseases including cancer. In this study, the species Didymopanax vinosum was selected through the in vitro antiproliferative assay using nine human tumor cell lines: leukemia (K- 562), prostate (PC0-3), kidney (786-0), ovary (OVCAR-03), melanoma (UACC-62), colon (HT-29), lung (NCI-460), breast (MCF-7) and multi-drug resistant breast cells (NCI-ADR). The crude hidroalcoholic extract (EBHf) obtained from the leaves of D. vinosum was achieved by mechanic extraction with ethanol 70%, this extract was partitioned using H2O / ethil acetate guiving an aquous (F1) and an organic (F2) fractions. F1 presented the most significant antiproliferative activity which seems to be related to the presence of glycolytic flavonoids, revealead by its chemical hydrolysis.


plantas medicinais flavonoides cancer

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