IFNG and neoplasm: We further observed that the Vγ2 x PD-L1-induced Vγ2Vδ2 T cells’ cytotoxicity (killing EC50) towards tumor cells was correlated significantly with these tumor cells’ PD-L1 expression scores, while the release IFNγ EC50 showed a negative trend with the PD-L1 expression scores (Figure 6C).