Of particular importance, the mucin MUC1 is overexpressed in numerous cancers including breast, ovarian, lung, pancreatic, prostate, gastric, and colorectal (Zotter et al., 1987; Girling et al., 1989; Ajioka et al., 1996; Burdick et al., 1997; Retz et al., 1998), where high expression generally correlates with increased mortality rates (MacLean et al., 1997; Guddo et al., 1998; Kocer et al., 2004; Duncan et al., 2007; Tewes et al., 2009). The gene discussed is MUC1; the disease is cancer.