Hepatocytes demarcated by EphB2 contribute to the progression of nonalcoholic steatohepatitis

Yang Xiao, Kirill Batmanov, Wenxiang Hu, Kun Zhu, Alexander Y. Tom, Dongyin Guan, Chunjie Jiang, Lan Cheng, Sam J. McCright, Eric C. Yang, Matthew R. Lanza, Yifan Liu, David A. Hill, Mitchell A. Lazar

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11 Scopus citations

Abstract

Current therapeutic strategies for treating nonalcoholic steatohepatitis (NASH) have failed to alleviate liver fibrosis, which is a devastating feature leading to hepatic dysfunction. Here, we integrated single-nucleus transcriptomics and epigenomics to characterize all major liver cell types during NASH development in mice and humans. The bifurcation of hepatocyte trajectory with NASH progression was conserved between mice and humans. At the nonalcoholic fatty liver (NAFL) stage, hepatocytes exhibited metabolic adaptation, whereas at the NASH stage, a subset of hepatocytes was enriched for the signatures of cell adhesion and migration, which were mainly demarcated by receptor tyrosine kinase ephrin type B receptor 2 (EphB2). EphB2, acting as a downstream effector of Notch signaling in hepatocytes, was sufficient to induce cell-autonomous inflammation. Knockdown of Ephb2 in hepatocytes ameliorated inflammation and fibrosis in a mouse model of NASH. Thus, EphB2-expressing hepatocytes contribute to NASH progression and may serve as a potential therapeutic target.

Original languageEnglish (US)
Article numbereadc9653
JournalScience Translational Medicine
Volume15
Issue number682
DOIs
StatePublished - Feb 8 2023

All Science Journal Classification (ASJC) codes

  • General Medicine

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