The results showed that, compared with the control group, CD24, CD44, N-Cadherin, β-catenin, and Vimentin in tumor tissues before NAC were significantly overexpressed, and CD24, CD44, E-cadherin, N-cadherin, β-catenin, and Vimentin were significantly lower expressed in paracancer tissues before NAC (Figure 6 and Table 4). The gene discussed is CDH2; the disease is neoplasm.