CCND1 and malignant colon neoplasm: Overexpression of cyclin D1 in colon cancer is well established (Arber et al, 1996, 1999; Sutter et al, 1997; Bukholm and Nesland, 2000; Kristt et al, 2000; Holland et al, 2001; Utsunomiya et al, 2001).