Objective To investigate the expression of secretory leucocyte protease inhibitor(SLPI) in colon cancer and their clinical significance.Methods Immunohistochemistry was performed to detect the SLPI expression in colon cancer tissue microarray.The expression of SLPI was scored by two pathologists and was analyzed using χ2 test to explore its influence on the pathologic characteristics of colon carcinoma.Results SLPI was up-regulated in colon cancer tissue compared to normal mucosa.Overexpression of SLPI prot...