AICDA and Burkitt lymphoma: In cell culture experiments, LMP1-carrying ExVs derived from the DG75 Burkitt’s lymphoma cell line were internalized by B cells resulting in proliferation, induction of activation-induced cytidine deaminase (AID), the production of circular and germline transcripts for IgG1 in B cells and drove B cell differentiation toward a plasmablast-like phenotype.