To achieve this, the miR-NC, microRNA-338-5p mimic (OE-miR), and WNT2B overexpression vectors (OE-WNT2B) were delivered into NPC cells, respectively, and the results in Figure S2 suggested that the OE-WNT2B vectors had been successfully delivered into NPC cells (P < 0.05). This evidence concerns the gene WNT2B and nasopharyngeal carcinoma.