These include: (1) CD30-TRAF1 in HL and ALCL tumors (22, 91); (2) TNF-R1/2-TRAF1/TRAF2-JNK/NF-κB in cervical and colon cancer cells (92); (3) Wnt/β-catenin-NF-κB-TRAF1/iNOS in colon, breast and liver cancer cells (93, 94); and (4) TWEAK-Fn14-TRAF1 in solid tumors (95–97). This evidence concerns the gene TRAF2 and liver cancer.