IL7R and familial pancreatic carcinoma: Given the elevated expression of IL-7R in PBMC from pancreatic cancer patients (Figure 1) and rapid appearance of IL-7R+ cells during tumorigenesis in murine model (Figure 2), we next performed flow cytometry analysis using several markers of immune cells in order to identify the discrete subpopulation expressing IL-7R in PMBC from pancreatic cancer patients.