REL and diffuse large B-cell lymphoma: Moreover, p63 appears to be another tumor suppressor beside WT-p53 in suppressing the adverse impact of c-Rel activation, suggested by the correlation of p63 expression with better survival in c-Rel+ ABC-DLBCL (Fig. 2J), and a similar trend in GCB-DLBCL patients (P = 0.18).