Figure 2. HDGF induces endothelial cell growth. The proliferation activity of hepatoma-derived growth factor (HDGF) and vascular endothelial growth factor (VEGF) was analyzed after 48-h incubation with human retinal microvascular endothelial cells (HRMVECs). The experiment was repeated three times with similar results. One representative experiment is shown. Mean ± standard error of the mean (SEM), n = 7 wells/group, *p<0.05, ***p<0.001, ****p<0.0001, versus control, one-way ANOVA t test.