REL and diffuse large B-cell lymphoma: CD5+ DLBCL, as compared with CD5− DLBCL, were more often positive for Bcl-2, FOXP1, pSTAT3, c-Rel and CXCR4, and less often expressed GCET, CD10, CD30, and SSBP2 (single-stranded DNA binding protein 2), or had MYC nonsilent mutations (Table 2, Supplemental Figures 1C-E).