As shown in Fig. 5, the CD90 staining score (mean (SEM)) in normal pancreas, adjacent normal tissue, chronic pancreatitis, and benign islet tumor was extremely low, which was 0.70 (0.13), 0.80 (0.14), 1.36 (0.39), and 1.20 (0.66), respectively. Here, THY1 is linked to chronic pancreatitis.