Medizinische Universität Graz - Research portal
Selected Publication:
SHR Neuro Cancer Cardio Lipid Metab Microb
Schneider, AT; Gautheron, J; Feoktistova, M; Roderburg, C; Loosen, SH; Roy, S; Benz, F; Schemmer, P; Büchler, MW; Nachbur, U; Neumann, UP; Tolba, R; Luedde, M; Zucman-Rossi, J; Panayotova-Dimitrova, D; Leverkus, M; Preisinger, C; Tacke, F; Trautwein, C; Longerich, T; Vucur, M; Luedde, T.
RIPK1 Suppresses a TRAF2-Dependent Pathway to Liver Cancer.
Cancer Cell. 2017; 31(1):94-109
Doi: 10.1016/j.ccell.2016.11.009
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- Co-authors Med Uni Graz
- Schemmer Peter
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- Abstract:
- Receptor-interacting protein kinase 1 (RIPK1) represents an essential signaling node in cell death and inflammation. Ablation of Ripk1 in liver parenchymal cells (LPC) did not cause a spontaneous phenotype, but led to tumor necrosis factor (TNF)-dependent hepatocyte apoptosis and liver injury without affecting inducible nuclear factor κB (NF-κB) activation. Loss of Ripk1 induced the TNF-dependent proteasomal degradation of the E3-ligase, TNF receptor-associated factor 2 (TRAF2), in a kinase-independent manner, thereby activating caspase-8. Moreover, loss of both Ripk1 and Traf2 in LPC not only resulted in caspase-8 hyperactivation but also impaired NF-κB activation, promoting the spontaneous development of hepatocellular carcinoma. In line, low RIPK1 and TRAF2 expression in human HCCs was associated with an unfavorable prognosis, suggesting that RIPK1 collaborates with TRAF2 to inhibit murine and human hepatocarcinogenesis. Copyright © 2017 Elsevier Inc. All rights reserved.
- Find related publications in this database (using NLM MeSH Indexing)
- Animals -
- Caspase 8 - metabolism
- Hepatocytes - physiology
- Humans -
- Liver Neoplasms - etiology
- Liver Neoplasms - prevention & control
- Male -
- Mice -
- Mice, Inbred C57BL -
- NF-kappa B - physiology
- Proteasome Endopeptidase Complex - metabolism
- Receptor-Interacting Protein Serine-Threonine Kinases - physiology
- TNF Receptor-Associated Factor 2 - physiology
- Tumor Necrosis Factor-alpha - pharmacology