CD8B and diffuse large B-cell lymphoma: To test for an effect on cell division, we treated ABC-DLBCL (TMD8, OCI-Ly3) and GCB-DLBCL (OCI-Ly1) cells with 1 μM M1i-124 and then monitored cell division over the ensuing 6 days by tracking the dilution of CellTrace Violet (Thermo Fisher Scientific) with flow cytometry.