期刊
JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES
卷 21, 期 5, 页码 309-315出版社
SPRINGER JAPAN KK
DOI: 10.1002/jhbp.63
关键词
Chemopreventive agents; Cholangiocarcinoma; Opisthorchis viverrini; Periductal fibrosis; Risk markers
资金
- Targeted Research Grant from the Faculty of Medicine, Khon Kaen University, Thailand [TR54101]
Human liver fluke, Opisthorchis viverrini (Ov), is the major risk factor of cholangiocarcinoma (CCA) in northeastern Thailand. Our approach focuses on genetic progression and molecular changes in the carcinogenic pathway of liver fluke-associated CCA aimed at assessing patients at risk of CCA and using chemoprevention as the secondary cancer prevention to reduce the incidence of CCA. This review summarizes altered gene expressions, biomolecules and their modification, i.e. DNA adducts, oxidized proteins, oxysterols and fibrotic markers in hamster- and human-CCA. Potential risk biomarker(s) and chemopreventive agent(s) criteria and selection were based on results from experimental and epidemiological studies identifying hepatobiliary disease, including CCA. Laboratory results reveal that oxidative stress induced by Ov infection leads to bimolecular damage, tissue remodeling especially periductal fibrosis and alteration of gene expressions, which could be involved in all steps of CCA carcinogenesis. Some of these molecules are reported to change their levels in opisthorchiasis, periductal fibrosis diagnosed by ultrasonography and CCA. Chemoprevention in experimental CCA tumorigenesis is discussed. These multiple risk biomarkers could now be explored for screening including chemopreventive intervention of subjects living in endemic areas where the prevalence of opisthorchiasis remains high.
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