Conversely, pre-stimulation of NK-92 cells transfected with the WT promoter sequences of NEDD4L using the ferroptosis inducer FIN56, or transfection with NEDD4L promoter sequences containing AAAGGGGTCT deletion, diminished the anti-cancer efficacy of the WT promoter sequences (Fig. 6H–L). This evidence concerns the gene NEDD4L and cancer.