In addition to breast cancer, BIRC5 expression has been associated with prognosis and diagnosis of multiple other human cancers such as acute lymphoblastic leukemia (Ahmed et al., 2012), prolactinoma (Dellal et al., 2015), pancreatic cancer (Dong et al., 2015) and non-small cell lung cancer (Chen et al., 2010). Here, BIRC5 is linked to breast cancer.