VEGFC and neoplasm: Immunohistochemical staining revealed that the staining intensity of EDA and VEGF-C in pGC-FU-EDA SW620 tumor group was enhanced in comparison with that in nontransfected control group or mock lentivector transfected group, and the staining intensity in shRNA-EDA SW480 tumor group was extremely diminished in comparison with that in the control group (Fig. 4C).