In contrast to previous findings obtained from human breast cancer, which indicated that Wnt5a mRNA level and protein level are not coordinately regulated in same tissue sample [30, 31], we noticed that gastric cancer SGC-7901 cells are continuously expressing high levels of Wnt5a mRNA and protein, both of which were suppressed by EGF in the present study. This evidence concerns the gene WNT5A and breast carcinoma.