For chronic myelogenous leukemia (CML), it has been reported that the TRAF2-interacting TNFRSF receptor CD27 stimulates the oncogenic Wnt-β-catenin-TNIK-TCF4 pathway, resulting in enhanced proliferation of leukemia stem cells and leukemia progression in a TRAF2-dependent manner [236]. Here, TRAF2 is linked to leukemia.