-transfected lymphoma cells, B lymphocyte, B-cell factor 1, B-cell lymphomas, BL, Burkitt lymphoma, Cancer, Cancer cells, DLBCL, DLBCL biopsies, DLBCL model, EBF1, EBNA2, EBNA2-transfected DLBCL, EBNA2-transfected derivatives, EBNA2-transfected lymphoma cells, EBV, EBV-associated cancers, Epstein-Barr, Epstein-Barr virus, Epstein-Barr virus (EBV)-associated tumors, ICs, LMP1, Latency III-expressing, Latency III-expressing DLBCL, MiR, MiR-34a, PD-L1, Programmed Cell Death Ligand, Short hairpin RNA, biomimetic, cancers, diffuse large B-cell lymphomas, immune checkpoint (IC) proteins, latency III-expressing Burkitt lymphoma, lymphomas, miR, miR-, miR-34a, mixed lymphocyte, oncosuppressor microRNA miR-34a, shRNA