NECTIN4 and neoplasm: After 28 days, the tumor weight of the LV-Nectin-4-shRNA group was lighter compared with the LV-NC group (Fig. 8f, P < 0.0001), and the tumor weight of the LV-Nectin-4-OE group trended to be heavier compared with the LV-Vector-Ctrl group (Fig. 8f, P = 0.1314).