Moreover, patients with a more advanced stage of breast cancer tended to express higher levels of BIRC5 (Figure 1C.)Consistent with the results from databases, we also compared the BIRC5 expression in breast cancer tissues and adjacent normal tissues in our hospital and found that BIRC5 was elevated in breast cancer tissues both in mRNA level (Figure 1D) and protein level (Figure 1E). This evidence concerns the gene BIRC5 and breast cancer.