Indian stingless bee propolis has a complex chemical nature and is reported to possess various medicinal properties. In the present
study, anticancer activity of the ethanolic extract of propolis (EEP) was explored by testing the cytotoxic and apoptotic effect in
four different cancer cell lines, namely, MCF-7 (human breast cancer), HT-29 (human colon adenocarcinoma), Caco-2 (human
epithelial colorectal adenocarcinoma), and B16F1 (murine melanoma), at different concentrations. Cytotoxicity was evaluated by
MTT assay and Trypan blue dye exclusion assay. EEP at a concentration of 250