Establishment and Characterization of a New Human Intrahepatic Cholangiocarcinoma Cell Line LIV27

Simple Summary Cholangiocarcinoma (CCA) is usually diagnosed at a late stage and has a poor prognosis. Cell lines serve as useful models for testing scientific questions in vitro and in vivo. To aid scientific discovery for the purpose of improved early detection and treatment, we developed a CCA cell line, designated LIV27, from a surgically resected intrahepatic CCA in a Caucasian patient with primary sclerosing cholangitis (PSC). LIV27 has high tumorigenicity in nude mice and expands the availability of intrahepatic CCA cell lines. Cholangiocarcinoma (CCA) is a highly lethal cancer arising from the biliary tract epithelium. The cancer biology of this neoplasm is not well understood. To date, only a few CCA cell lines have been reported, which were mostly developed from Asian patients. In this study, we report and characterize a new intrahepatic CCA cell line, LIV27, derived from a surgically resected tumor in a 67-year-old Caucasian woman with primary sclerosing cholangitis (PSC). LIV27 cells grow well in collagen-coated flasks or plates with a doubling time of 57.8 h at passage 14. LIV27 cells have high tumorigenicity in nude mice and stain positive for CK7 and CK19, markers that differentiate CCA from hepatocellular carcinoma. Karyotype analysis showed that LIV27 is aneuploid. We established a single-locus short tandem repeat profile for the LIV27 cell line. This newly established cell line will be a useful model for studying the molecular pathogenesis of, and developing novel therapies for, cholangiocarcinoma.