However, PI/Calcein staining showed that addition of Sellhi neutrophil isolated from PBMC of donor patient to C‐P resulted in a striking decrease in tumor cell viability, leading to a synergistic, significant increase in apoptosis levels in 2405 organoids, whereas blockade of IL15 or the IL15 target, Stat5a, impaired this synergistic effect (Figure 7e). The gene discussed is IL15; the disease is neoplasm.