AURKB and cholangiocarcinoma: GEPIA analysis based on TCGA database showed that AURKB expression was elevated in cholangiocarcinoma (Fig. 1D), and up-regulated AURKB expression was associated with poor overall survival (OS) (Fig. 1E), while disease free survival (DFS) between the AURKB high expression group and the low expression group were not statistically significant (Fig. 1F).