CEACAM6 is highly expressed in various human cancer tissues and its clinical significance has been widely reported (Hasegawa et al, 1993; Kodera et al, 1993; Scholzel et al, 2000; Ilantzis et al, 2002; Jantscheff et al, 2003; Duxbury et al, 2004a). This evidence concerns the gene CEACAM6 and cancer.