NFKB2 and neoplasm: To explore the mechanisms underlying the tumor proliferative effect of NFKB2 in syngeneic mouse models, we analyzed the transcriptomic profiles of MC38 tumors in C57BL/6 mouse model by RNA‐seq assays (Figure S4), and an obvious difference existed between the transcriptomic profiles of xenografts with or without Nfkb2 overexpression (Figure 3A).