Abstract:
: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.
journal_name
Cancer Celljournal_title
Cancer cellauthors
Wolf MJ,Adili A,Piotrowitz K,Abdullah Z,Boege Y,Stemmer K,Ringelhan M,Simonavicius N,Egger M,Wohlleber D,Lorentzen A,Einer C,Schulz S,Clavel T,Protzer U,Thiele C,Zischka H,Moch H,Tschöp M,Tumanov AV,Haller D,Ungdoi
10.1016/j.ccell.2014.09.003subject
Has Abstractpub_date
2014-10-13 00:00:00pages
549-64issue
4eissn
1535-6108issn
1878-3686pii
S1535-6108(14)00366-3journal_volume
26pub_type
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