FAS and neoplasm: Vδ2 T cells can efficiently kill EBV-transformed autologous lymphoblastoid B cells through γ/δ-TCR and NKG2D receptor triggering and Fas and TRAIL engagement [39], and exosomes derived from Vδ2 T cells can eliminate EBV-associated tumor cells [39–41], demonstrating the important function of Vδ2 T cells.