NFKB1 and neoplasm: The expression of noncanonical NF-κB pathway-related genes and proteins was tested by ddPCR (Fig. 3D) and western blotting in NKTCL cells (Fig. 3E), and by IHC staining in NKTCL xenograft tumor tissues (Fig. 3F), and these results collectively suggested that shLMP1 inhibited the activation of the downstream noncanonical NF-κB pathway.