Fig. 6. EC spread on VEGFR-1-coated plates. Cells were plated on Petri dishes coated with 10 µg/ml fibronectin (FN) (A) or 10 µg/ml VEGFR-1/Fc (B,C), and F-actin was stained with fluorescein-labelled phalloidin 1 hour (A,B) or 6 hours after plating (C). Scale bars: 5 µm.