Gal-1 was highly expressed by pancreatic stellate cells/fibroblasts associated with desmoplasia in CP, IPMN, low- or high-grade PanINs and PDA, but it was not detected in ductal cells in any tissue samples (Figure 1A and Supplementary Table 1). This evidence concerns the gene LGALS1 and pancreatic intraductal papillary-mucinous neoplasm.