EZH2 and diffuse large B-cell lymphoma: GSK-126 affected the viability of mutant EZH2-containing GCB-DLBCL cells in vitro and in mouse xenograft models with EZH2 mutations in vivo but not of wild-type (WT) EZH2-containing GCB-DLBCL cells or in mouse WT-EZH2 xenograft models [355].