Effect of Fumos on the viability of different cell lines. (A) Structure of Fumos. (B) Cell proliferation was examined using the MTT assay. Cells were treated with 2.5, 5,10, 20 and 40 µg/ml Fumos, or with DMSO (0.5%) as the vehicle control, for 24 h. The data are expressed as the mean ± standard deviation of three independent experiments. (C) HeLa cells were treated with 2.5, 5,10, 20 and 40 µg/ml Fumos, or with DMSO (0.5%) as the vehicle control, for 24, 48 and 72 h. **P<0.01, vs. untreated cells. One-way analysis followed by Tukey's test was performed. Fumos, fumosorinone.