Detection of VEGF levels by ELISA in HLE-B3 cells treated with XAV939. HLE-B3 cells were cultured in 100 mm2
culture dishes and incubated with 1 µm XAV939 for 3 h in hypoxia as described in Figure 6
. At the end of 3 h, the cell culture medium was collected. The experiment was repeated three times with independent cell
populations, and the cell culture medium was evaluated for vascular endothelial growth factor (VEGF) levels using nine samples
from three independent cell populations. The asterisk (*) signifies there was a slight but statistically sound increase in
the VEGF levels of XAV939-treated cells compared with the controls (p<0.05).