Additionally, 160 formalin-fixed, paraffin-embedded (FFPE) samples of pancreatic cancer tissue and 68 control specimens, including 37 matched normal surgical margins and 31 benign pancreatic lesions were prepared for tissue microarrays (TMA) construction and determined the expression of GRO-α protein using immunohistochemistry (IHC). This evidence concerns the gene CXCL1 and familial pancreatic carcinoma.