The percentage of MSLN-specific IFN-γ producing CD4+ T cells for healthy donors (H01-H16, n = 16), benign pancreatic disease patients (CON01-CON15, n = 15) and pancreatic cancer patients (P01-PC25, n = 25) are shown in Figure 4A. This evidence concerns the gene CD4 and familial pancreatic carcinoma.