CDH2 and cancer: Studies have shown that peptides mimetic the HAV motif in N‐cadherin are sufficient to inhibit cell–cell adhesion and neurite outgrowth.[26] The self‐assembled peptides have been widely investigated because of their good biocompatibility and used for cancer treatment, tissue engineering, and wound healing.45, 46, 47, 48 In this study, a bifunctional peptide conjugated with tumor targeting peptide sequences‐NGRRGD and HAV, and apoptosis‐inducing peptide sequence‐AVPIAQK was prepared.