Figure 1.

The effect of different serine concentration on cancer cell migration. Five serine concentrations from 0 to 600 μg/ml in culture medium were set. After incubating MGC803 or HGC27 cells in mediums with different serine concentrations for 24 h, the optimum serine concentration of 150 μg/ml medium was observed in both cancer cell lines. In addition, the migratory ability of MGC803 cells was higher than that in HGC27cells at high serine condition. These data are representative examples taken from one of the three experiments. “*” represents P < 0.05, comparing to “Normal” group, **P < 0.01, ***P < 0.001, ****P < 0.0001.