In another study [36], HNF1B was also found deregulated in a mouse model of intraductal papillary mucinous neoplasm (IPMN) to PDAC progression with another duct-specific factor, SOX9, while the latter was not found deregulated in our data and was not predicted in our regulatory analysis. This evidence concerns the gene SOX9 and pancreatic intraductal papillary-mucinous neoplasm.