SOX1 and cholangiocarcinoma: The subcutaneous tumor growth of TFK-1 and HUCCT-1 cells with LV-SOX1 and NC-SOX1 transfected in BALB/C nude mice is shown in Fig. 2D. The tumor volume in mice injected with LV-SOX1 CCA cells were significantly smaller than the NC-SOX1 group.