The role of IL‐13Rα2 in tumorigenesis is debatable as high levels of IL‐13Rα2 were found to inhibit the progression of breast and pancreatic tumors [12]; conversely, IL‐13Rα2 overexpression was found to increase the invasiveness and metastatic potential of ovarian and pancreatic cancer cells [13, 14]. This evidence concerns the gene IL13RA2 and familial pancreatic carcinoma.