The secretion of IFN-γ from Vγ2Vδ2 T cells was confirmed by intracellular staining of IFN-γ as shown in Figure 5B, in which the amount of IFN-γ secreted from Vγ2Vδ2 T cells in response to PTA-pulsed lung cancer cells was more than that to ZOL-pulsed target cells. The gene discussed is IFNG; the disease is lung carcinoma.