Proliferative rate of B16F10 melanoma cells. Toxins inhibit the proliferation and induce cell cycle arrest in B16F10 cells. Proliferation rates in B16F10 melanoma cells treated with jara and jari toxins for 24, 48 and 72 h determined using the ModFitLT 2.0 software. (A) The means proliferative rate using CFSE-DA assay of jara group; (B) CFSE-DA proliferation jari group; (C) CFSE-DA proliferation lymphocytes positive control (inset – dot plot representative); (D) Histograms represent the flow cytometric of CFSE-DA proliferative assay analyzes the proliferation of B16F10 melanoma cells after exposed to jara and jari toxins. All the experiments were repeated three times. Data are expressed as means ± SD. The statistical difference was obtained between control group non treated and toxins groups.