Journal
JHEP REPORTS
Volume 2, Issue 5, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhepr.2020.100143
Keywords
Bile; Bile duct cancer; Biomarker; Blood; Cholangiocarcinoma; DNA methylation; Early detection; Liquid biopsy; Primary sclerosing cholangitis; Urine
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Funding
- South-Eastern Norway Regional Health Authority [2019074]
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Cholangiocarcinoma (CCA) is a highly fatal malignancy of the bile ducts that arises in up to 20% of patients with primary sclerosing cholangitis (PSC). Current detection methods for CCA display suboptimal sensitivity and/or specificity, and there is no evidence-based screening strategy for CCA in patients with PSC. Consequently, CCA is often detected too late for surgical resection, contributing to the high mortality associated with this malignancy. Recently, biomarkers have emerged with potential to complement current detection methods, and/or be used for cancer surveillance in high-risk patient groups, including patients with PSC. Aberrant DNA methylation patterns represent promising biomarkers with great potential for CCA detection. Such aberrations are frequent in CCA, often occur early, and can be detected in liquid biopsies, including blood, bile and urine. This review summarises and highlights the most promising DNA methylation biomarkers identified for CCA detection so far, focusing on patients with PSC. Other promising molecular biomarkers for detection of PSC-associated CCA in liquid biopsies will also be briefly covered. (C) 2020 The Authors. Published by Elsevier B.V. on behalf of European Association for the Study of the Liver (EASL).
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