Different databases were evaluated to determine the effect of VEGFA on GC progression. (A,B) VEGFA expression in various cancers (A) and in GC (B). (C) The HPA database immunohistochemical samples (pictured above is normal tissue; below is GC tissue). (D) The relationship between VEGFA mutation and prognosis in GC patients. (E,F) VEGFA in different differentiation degree and pathological staging in GC. (G) Survival curve analysis of VEGFA in GC patients (TCGA). (H) VEGF family expression in various cancers. (I) The expression of VEGFA in SGC7901 cells was detected by RT-PCR. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p <0.0001.