PTPN22 and pancreatic ductal adenocarcinoma: In Iacobuzio-Donahue dataset, we found that PTPN22 expressed higher in PAAD (fold change = 2.770), and, in Buchholz data (Table 1), PTPN22 expressed higher in pancreatic ductal adenocarcinoma (fold change = 126.456), pancreatic intraepithelial neoplasia (fold change = 4.571) versus normal samples.