ArticleFrontiers in pharmacology2026
Wogonoside alleviates metabolic dysfunction-associated steatohepatitis by modulating AMPK and xCT/GPX4 pathways to restrain lipid dysregulation and ferroptosis.
Article in Frontiers in pharmacology, 2026. 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: Metabolic dysfunction-associated steatohepatitis (MASH) is a progressive form of metabolic dysfunction-associated steatotic liver disease with limited pharmacological treatment options. Wogonoside (WOG), a flavonoid isolated from Scutellaria baicalensis, exhibits anti-inflammatory, antioxidant, and lipid-lowering activities; however, its effects and underlying mechanisms in MASH remain unclear. Methods: A high-fat and high-fructose diet (HFFD)-induced mouse model of MASH and free fatty acid (FFA)-induced HepG2 cell steatosis model were used to evaluate the hepatoprotective effects of WOG. Liver histopathology, serum biochemical parameters, glucose tolerance, lipid accumulation, oxidative stress, ferroptosis-associated indicators, transcriptomic profiling, and expression of relevant proteins were assessed. The anti-ferroptotic effects of WOG were further examined using erastin and ferrostatin-1 in HepG2 cells. Results: WOG administration ameliorated HFFD-induced obesity, hepatic steatosis, hepatocellular ballooning, liver injury, dyslipidemia, insulin resistance, oxidative stress, and inflammatory responses in mice. Transcriptomic analysis indicated that WOG-responsive genes were enriched in lipid metabolism, peroxisome proliferator-activated receptor signaling, AMPK signaling, and ferroptosis-related pathways. In liver tissues and FFA-treated HepG2 cells, WOG increased AMPK phosphorylation and upregulated the expression of PGC-1α, PPARα, and CPT-1, while reducing the expression of SREBP-1c and its downstream lipogenic proteins, including ACLY, ACACA, FASN, and SCD-1. These changes were accompanied by decreased hepatic and intracellular triglyceride accumulation. In addition, WOG reduced reactive oxygen species, restored mitochondrial membrane potential, increased Nrf2 and HO-1 expression, and attenuated inflammatory responses. WOG also decreased Fe Conclusion: WOG alleviates experimental MASH by improving hepatic lipid metabolic homeostasis and suppressing ferroptosis-associated injury. These protective effects are associated with activation of AMPK signaling and restoration of the xCT/GPX4 antioxidant defense axis. WOG may therefore represent a promising candidate for the pharmacological management of MASH.
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