The panel of 7 ABC, 14 GCB, and 5 unclassified DLBCL cell lines had heterogenous levels of AKT pathway activation, PTEN protein and anti-apoptotic cell death proteins BCL-2, BCL-2-like 1 (BCL-XL) and MCL-1 expression (Fig. 1A). This evidence concerns the gene PTEN and diffuse large B-cell lymphoma.