AHCY and breast cancer: However, AHCY’s function as a tumor suppressor seems to be cell type specific, as AHCY inhibition is also linked to anti-migratory and anti-invasive activity in breast cancer cells (Kim et al., 2013; Park et al., 2015) and to enhanced apoptosis in high aggressive neuroblastoma (Westermann et al., 2008; Chayka et al., 2015).