Fig. 1. rLZ-8 inhibits proliferation of A549 lung cancer cells. A549 cells
were treated with various concentrations of rLZ-8 as indicated for 12–72 h.
The relative cell numbers were measured by 3-(4,5-dimethylthiazole-2-yl)-
2,5-biphenyl tetrazolium bromide assay. The results are expressed as
percentages of cell numbers relative to the control and represent the mean ±
standard error of the three experiments.