Figure 7. The plasticity of type 1 fibroblasts transfected with VEGFR1,VEGFR2, and VEGFR3 siRNAs as demonstrated on Matrigel after 18 h of incubation. A: Non transfected corneal fibroblasts; B: transfected with VEGFR1 siRNA; C: transfected with VEGFR2 siRNA; and D: transfected with VEGFR3 siRNA. The number of tubules per field was counted and the mean was plotted as a histogram (E).