The mRNA levels of KIFC1, LRRC59, and TRIP13 were evaluated using 36 cases of CCA from The Cancer Genome Atlas (TCGA) database (https://tcga-data.nci.nih.gov/tcga/), and their correlations with HMGA1 were analyzed (Fig. 2b). This evidence concerns the gene KIFC1 and cholangiocarcinoma.