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Metabolic activation of intrahepatic CD8+ T cells and NKT cells causes nonalcoholic steatohepatitis and liver cancer via cross-talk with hepatocytes.
Cancer Cell 26, 549-564 (2014)
Hepatocellular carcinoma (HCC), the fastest rising cancer in the United States and increasing in Europe, often occurs with nonalcoholic steatohepatitis (NASH). Mechanisms underlying NASH and NASH-induced HCC are largely unknown. We developed a mouse model recapitulating key features of human metabolic syndrome, NASH, and HCC by long-term feeding of a choline-deficient high-fat diet. This induced activated intrahepatic CD8(+) T cells, NKT cells, and inflammatory cytokines, similar to NASH patients. CD8(+) T cells and NKT cells but not myeloid cells promote NASH and HCC through interactions with hepatocytes. NKT cells primarily cause steatosis via secreted LIGHT, while CD8(+) and NKT cells cooperatively induce liver damage. Hepatocellular LTβR and canonical NF-κB signaling facilitate NASH-to-HCC transition, demonstrating that distinct molecular mechanisms determine NASH and HCC development.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Hepatocellular-carcinoma; Lymphotoxin-beta; Obesity; Disease; Choline; Hepatocarcinogenesis; Nafld; Tumorigenesis; Inflammation; Progression
ISSN (print) / ISBN
1535-6108
e-ISSN
1878-3686
Zeitschrift
Cancer Cell
Quellenangaben
Band: 26,
Heft: 4,
Seiten: 549-564
Verlag
Cell Press
Verlagsort
Cambridge, Mass.
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Virology (VIRO)
Institute of Diabetes and Obesity (IDO)
Institute of Molecular Toxicology and Pharmacology (TOXI)
CCG Personalized Radiotherapy in Head and Neck Cancer (KKG-KRT)
Translational Metabolic Oncology (TMO)
Institute of Diabetes and Obesity (IDO)
Institute of Molecular Toxicology and Pharmacology (TOXI)
CCG Personalized Radiotherapy in Head and Neck Cancer (KKG-KRT)
Translational Metabolic Oncology (TMO)