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Kupffer cell-derived Tnf triggers cholangiocellular tumorigenesis through JNK due to chronic mitochondrial dysfunction and ROS.
Cancer Cell 31, 771-789.e6 (2017)
Publ. Version/Full Text
DOI
PMC
Intrahepatic cholangiocarcinoma (ICC) is a highly malignant, heterogeneous cancer with poor treatment options. We found that mitochondrial dysfunction and oxidative stress trigger a niche favoring cholangiocellular overgrowth and tumorigenesis. Liver damage, reactive oxygen species (ROS) and paracrine tumor necrosis factor (Tnf) from Kupffer cells caused JNK-mediated cholangiocellular proliferation and oncogenic transformation. Anti-oxidant treatment, Kupffer cell depletion, Tnfr1 deletion, or JNK inhibition reduced cholangiocellular pre-neoplastic lesions. Liver-specific JNK1/2 deletion led to tumor reduction and enhanced survival in Akt/Notch- or p53/Kras-induced ICC models. In human ICC, high Tnf expression near ICC lesions, cholangiocellular JNK-phosphorylation, and ROS accumulation in surrounding hepatocytes are present. Thus, Kupffer cell-derived Tnf favors cholangiocellular proliferation/differentiation and carcinogenesis. Targeting the ROS/Tnf/JNK axis may provide opportunities for ICC therapy.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Jnk ; Kupffer Cell ; Tnf ; Cholastasis ; Intrahepatic Cholangiocarcinoma ; Mitochondrial Dysfunction ; Pro-inflammatory Niche ; Reactive Oxygen Species ; Unfolded Protein Response
ISSN (print) / ISBN
1535-6108
e-ISSN
1878-3686
Journal
Cancer Cell
Quellenangaben
Volume: 31,
Issue: 6,
Pages: 771-789.e6
Publisher
Cell Press
Publishing Place
Cambridge, Mass.
Non-patent literature
Publications
Reviewing status
Peer reviewed