Moreover, four cholangiocarcinoma cell lines used here, namely HCCC-9810, RBE, HUCCT1 and QBC939, exhibited higher EIF3B mRNA and protein levels compared with the non-cholangiocarcinoma cell line HIBEC, especially in HCCC-9810 and RBE (Figure 1B), implying the potential significance of EIF3B in promoting cholangiocarcinoma. Here, EIF3B is linked to cholangiocarcinoma.