To further characterize the assumed differences in the vascular compartment, a qRT-PCR was performed using vascular endothelial cadherin (VE-Cad), the major angiogenic growth factor receptor VegfR2 and vascular cell adhesion protein 1 (VCAM1) as markers for tumor vascularization (Figure 7B). This evidence concerns the gene VCAM1 and neoplasm.