Fig. 3
From: Anti-cancer activity of propolis extracts from stingless bees of Brunei Darussalam
Preliminary single dose treatment (50 µg/mL) with stingless bee propolis extracts and its effect on cancer cell viability. (A) Comparison of the effects of ethanol and ethyl acetate extracts from five stingless bee species on the viability of three cancer cell lines (U2932, H1975, and EJ). Statistical significance is indicated. ***, p < 0.001; **, p < 0.01; *, p < 0.05; n.s., non-significant. (B) Comparison of the effects of ethanol propolis extracts (50 µg/mL) from five stingless bee species (H. itama, T. melanoleuca, T. binghami, G. thoracica, and L. canifrons) on the viability of five cancer cell lines (U2932, H1975, OCI-LY3, HT, and EJ). The heatmap represents post-treatment cell viability (%), where lower values (red) indicate stronger cytotoxic effects.
