Figure 3.

Dose-dependent S7 antiproliferative activity: comparison of raceme mixture with the enantiopure forms S7-(R) and S7-(S). Three melanoma cell lines and one short term culture of human fibroblasts were treated with various concentrations of S7, S7-(R) and S7-(S) for 3 days. Cell proliferation was estimated as described in Material and Methods. Results are expressed as percentage of cell growth and represent the average (± standard deviation) of triplicate cultures performed twice.