NFKB1 and cancer: Further, using GSEA, we found that multiple immune‐related cancer hallmarks were enriched in the CD300Ahigh group, such as HALLMARK_ALLOGRAFT_REJECTION, HALLMARK_COMPLEMENT, HALLMARK_IL6_JAK_STAT3_SIGNALING, HALLMARK_INFLAMMATORY_RESPONSE, HALLMARK_INTERFERON_ALPHA_RESPONSE, HALLMARK_INTERFERON_GAMMA_RESPONSE, HALLMARK_NOTCH_SIGNALING, HALLMARK_TNFA_SIGNALING_VIA_NFKB (Figure 9D).