In a different report, ZEB1, ZEB2 and Snail1 were also detected in tumour and stromal cells of pancreatic ductal adenocarcinoma; however, when the authors analysed the association between stromal expression and lymph node metastasis, only ZEB2 expression was significantly associated with metastasis (Galván et al., 2015). This evidence concerns the gene SNAI1 and neoplasm.