IFNG and ovarian carcinoma: In addition to in vitro cytolysis, there was increased production of the cytokine IFNγ in the supernatants collected from OVCAR3 and primary ovarian cancer cells following 48 h co‐culture with nfP2X7‐CAR‐T cells, but no IFNγ was detected in supernatants from cells treated with control media or co‐cultured with UT CD3 cells (Figure 1e).