In the presence of BAY 60-6583, a higher level of cytokine production was observed for anti-CD133 (Figures 3A–C) and anti-HER2 (Supplementary Figure S2A–C) CAR T cells following antigen-specific stimulation, while no changes were observed when the CAR T cells were incubated with non-target tumor cells. This evidence concerns the gene PROM1 and neoplasm.