CDH1 and cancer: demonstrated that CAFs assisted cancer progression by heterophilic adhesion of N‐cadherin at the CAF membrane and E‐cadherin at the cancer cell membrane.[3b] Correlating with this result, melanoma cells in the heterospheroid tend to follow the migration path of the preceding fibroblasts, suggesting fibroblast‐assisted melanoma migration and invasion (Figure S7, Supporting Information).