Oxidative Stress and Redox-Dependent Pathways in Cholangiocarcinoma
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Published:2023-12-22
Issue:1
Volume:13
Page:28
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ISSN:2076-3921
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Container-title:Antioxidants
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language:en
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Short-container-title:Antioxidants
Author:
Caligiuri Alessandra1, Becatti Matteo2ORCID, Porro Nunzia2, Borghi Serena2, Marra Fabio1ORCID, Pastore Mirella1, Taddei Niccolò2, Fiorillo Claudia2ORCID, Gentilini Alessandra1ORCID
Affiliation:
1. Department of Experimental and Clinical Medicine, University of Florence, 50139 Florence, Italy 2. Department of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, 50139 Florence, Italy
Abstract
Cholangiocarcinoma (CCA) is a primary liver tumor that accounts for 2% of all cancer-related deaths worldwide yearly. It can arise from cholangiocytes of biliary tracts, peribiliary glands, and possibly from progenitor cells or even hepatocytes. CCA is characterized by high chemoresistance, aggressiveness, and poor prognosis. Potentially curative surgical therapy is restricted to a small number of patients with early-stage disease (up to 35%). Accumulating evidence indicates that CCA is an oxidative stress-driven carcinoma resulting from chronic inflammation. Oxidative stress, due to enhanced reactive oxygen species (ROS) production and/or decreased antioxidants, has been recently suggested as a key factor in cholangiocyte oncogenesis through gene expression alterations and molecular damage. However, due to different experimental models and conditions, contradictory results regarding oxidative stress in cholangiocarcinoma have been reported. The role of ROS and antioxidants in cancer is controversial due to their context-dependent ability to stimulate tumorigenesis and support cancer cell proliferation or promote cell death. On these bases, the present narrative review is focused on illustrating the role of oxidative stress in cholangiocarcinoma and the main ROS-driven intracellular pathways. Heterogeneous data about antioxidant effects on cancer development are also discussed.
Subject
Cell Biology,Clinical Biochemistry,Molecular Biology,Biochemistry,Physiology
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