In breast cancers, we found significant upregulation of KIFC1 (Figure 2A), AURKB (Figure 2B), BIRC5 (Figure 2C), and CDCA8 (Figure 2D) in tumor samples of both the GEPIA (Figure 2A–D) and UALCAN datasets, compared to normal samples. The gene discussed is BIRC5; the disease is neoplasm.