VEGF family members promote angiogenic events in vitro. (A) Migration of mOMECs
through a porous membrane in response to treatment for 24 h with basal medium alone or
with the addition of VEGFA, VEGFC, or VEGFD. Representative images of migrated cells
after each treatment. In basal image, arrows indicate migrated cells (pink);
arrowheads indicate pores. (B) Proliferation of mOMECs as assessed by Ki67
immunodetection and expressed as percentage of total cells which were Ki67+.
Representative images for each treatment are shown; examples of nuclei which are Ki67+
(brown, arrows) and Ki76– (blue, arrowheads) are indicated in basal image. (C) Sprout
formation by mOMECs after culture with each treatment for 2 days. Representative
images show beads with mOMECs forming sprouts (arrows) on day 2 in vitro for each
treatment. For each graph, data were assessed by ANOVA and the Duncan test; groups
with no common letters are different, P < 0.05; n = 4 mOMEC
lines/group.