ArticleDrug design, development and therapy2025
The Jieduan-Niwan Formula Reduces Inflammatory Responses in Acute-on-Chronic Liver Failure Rats by Inhibiting HMGB1-Induced Hepatocyte Pyroptosis.
Article in Drug design, development and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Acute-on-chronic liver failure (ACLF) is a global intractable disease. HMGB1-induced hepatocyte pyroptosis expanding inflammatory responses contributes to the pathogenesis of ACLF. The JDNW formula (JDNWF) has a significant clinical effect on ACLF, but its hepatoprotective mechanisms remain elusive. Purpose: To explore the potential molecular mechanisms of the JDNWF in ACLF by HMGB1-induced hepatocyte pyroptosis. Methods: Rats were divided into normal, ACLF, Caspase-1 inhibitor, HMGB1 inhibitor, JDNW, JDNW+Caspase-1 inhibitor and JDNW+HMGB1 inhibitor groups. The ACLF rat model was established by 40% carbon tetrachloride-induced liver fibrosis, followed by intraperitoneal injection of D-galactosamine and lipopolysaccharide. The liver function, coagulation function, liver pathological damage and ultrastructural changes of hepatocytes were evaluated. Triple-immunostaining of active Caspase-1, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and albumin were performed to evaluate the percentage of pyroptotic hepatocytes. Western blot, immunofluorescence, enzyme-linked immunosorbent assay (ELISA) and quantitative real-time PCR (RT-qPCR) were used to analyze the expressions of key genes and proteins in HMGB1-induced pyroptosis pathways and the level of inflammatory factors. Results: The JDNWF improved liver function, coagulation function and liver pathological damage, reduced the percentage of pyroptotic hepatocytes and inflammatory responses, and down-regulated the expressions of key genes and proteins in the HMGB1-induced pyroptosis pathways in ACLF rats. The effect of the JDNWF was better than those of HMGB1 inhibitor (glycyrrhizin) and Caspase-1 inhibitor (VX-765). Compared with glycyrrhizin or VX-765, there were no significant differences in the above indicators after the JDNWF in combination with glycyrrhizin or VX-765. These results indicated that the JDNWF inhibited hepatocyte pyroptosis and liver inflammation in ACLF rats through the HMGB1-induced pyroptosis pathways. Conclusion: The JDNWF protects the livers of ACLF rats by inhibiting HMGB1-induced hepatocyte pyroptosis reducing inflammatory responses, suggesting that HMGB1-induced hepatocyte pyroptosis may be a potential therapeutic target of ACLF.
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