For example, hydrogel not only promotes NPC survival, but also maintains the stemness of NPC via the regulation of cadherin/β‐catenin signaling.27 Subsequently, we constructed cell lines that interfered with E‐cadherin and found that the pluripotency of ESCs on the RGO substrates is dependent on E‐cadherin. This evidence concerns the gene CDH17 and nasopharyngeal carcinoma.