Accumulating studies reported that epithelial‐mesenchymal transition (EMT) is a critical process especial during cancer cell metastasis.26, 27, 28 As shown in Figure 5A‐D, the expression of vimentin and N‐cadherin was deceased and expression of E‐cadherin was enhanced in si‐GAP43 cell lines. Here, GAP43 is linked to cancer.