Electrotransfection with pCAGGS-SIY-OVAII promoted the infiltration of 4-1BB+ CD107a+ (activated) and Slamf6+ CD127+ (self-replicable) CD8+ T cells in the tumor (Fig. 8, B and C) (Watanabe et al., 2008; Milner et al., 2020). The gene discussed is CD8A; the disease is neoplasm.