NFKB1 and diffuse large B-cell lymphoma: In vivo the most abundant NF-κB dimers are p50/p65 heterodimers which are ubiquitously expressed in mammalian tissue [11, 15-17], consistent with the highest level of nuclear p50/p65 in DLBCL samples among all NF-κB subunits by our previous studies [10, 18].