PPFIBP2 and cholangiocarcinoma: To examine the function of miR-194-5p in CCA, wound healing and transwell assays as well as in vivo pulmonary metastasis (n = 10/group) analysis were performed with stably transfected cell lines (CCLP1-anti-miR-194-5p, CCLP1-NC, HCCC9810-miR-194-5p, and HCCC9810-NC).