Figure 5.
Bystander effect assay. (A) Low/negative Trop-2 expressing cells, ARK4 (GFP-ARK4 cells) co-cultured without any treatment (control), (B) Low Trop-2 expressing cells (ARK4 with GFP) co-cultured in 1:1 fashion with high Trop-2 expressing cells (CVX8), and treated with control ADC, (C) Low Trop-2 expressing cells (ARK4 with GFP) co-cultured in 1:1 fashion with high Trop-2 expressing cells (CVX8), and treated with sacituzumab govitecan. Significant increase in ARK4 cell cytotoxicity was detected at the time of the co-incubation with CVX8 cells (p = 0.02).