Results showed that the expression levels of HPR (haptoglobin-related protein), HP (haptoglobin), ALB (Serum albumin), KRT1 (Keratin, type II cytoskeletal 1), APOA1 (Apolipoprotein A-1), FGB (Fibrinogen beta chain), IGJ (Immunoglobulin J chain) and C4A (Complement C4-A) were lower in advanced polyp sample compared to normal one and as well as, they were lower in cancer sample rather than polyp one. This evidence concerns the gene KRT1 and polyp.