Liver X Receptor α-Induced Cannabinoid Receptor 2 Inhibits Ubiquitin-Specific Peptidase 4 Through miR-27b, Protecting Hepatocytes From TGF-β.

ABSTRACT: Liver X receptor-alpha (LXRα) acts as a double-edged sword in different biological situations. Given the elusive role of LXRα in hepatocyte viability, this study investigated whether LXRα protects hepatocytes from injurious stimuli and the underlying basis. LXRα activation prevented hepatocyte apoptosis from CCl₄ challenges in mice. Consistently, LXRα protected hepatocytes specifically from transforming growth factor-beta (TGF-β), whereas LXRα deficiency aggravated TGF-β-induced hepatocyte injury. In the Gene Expression Omnibus database analysis for LXR^-/- mice, TGF-β receptors were placed in the core network. Hierarchical clustering and correlation analyses enabled us to find cannabinoid receptor 2 (CB2) as a gene relevant to LXRα. In human fibrotic liver samples, bo

SUBMITTER: Wu HM 

PROVIDER: S-EPMC6771303 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature