Immunohistochemical analysis demonstrated that the tumor tissues were weakly stained for VEGF (Fig. 2) and CD31 (Fig. 3) antibody in Group 2 (TAE) and particularly weakly in Group 3 (Rg3 and TAE) compared with Group 1 (Rg3) and the control. The gene discussed is PECAM1; the disease is neoplasm.