BIRC5 is at the crossroads of many cancer cell signalling networks and has been confirmed to be related to the progression of various malignant tumours.[29–31] Zu et al[32] reported that zinc fingers of the proto-oncogene and the BTB domain containing 7A can significantly upregulate the expression of BIRC5 to promote the development of breast cancer. This evidence concerns the gene BIRC5 and breast cancer.