Identification of herbal formula Huatanqushihuoxue formula as a potential therapeutic agent for metabolism-related fatty liver disease: a multi-omics and network pharmacology approach

Objective: This study aimed to evaluate the therapeutic effect of the traditional Chinese medicine compound Huatan Qushi Huoxue prescription (HQHF) on Metabolic Associated Fatty Liver Disease (MAFLD) and explore its underlying mechanisms through a multi-method approach. Methods: A high-fat diet-induced MAFLD mouse model was established to assess HQHF's effects on liver pathology, biochemical markers, and oxidative stress. The bioactive components and potential targets of HQHF were identified through network pharmacology. MAFLD-related signaling pathways were explored by integrating data from the Gene Expression Omnibus (GEO) database, followed by molecular docking analyses. For experimental validation, key inflammatory cytokines and proteins (Interleukin-6 (IL-6), Interleukin-1α (IL-1α), Interleukin-1β (IL-1β), Matrix Metallopeptidase 9 (MMP9), Chemokine Ligand 2 (CCL2), and Intercellular Adhesion Molecule 1 (ICAM1)) were measured using Enzyme-Linked Immunosorbent Assay (ELISA), immunohistochemistry (IHC), and immunofluorescence. Results: Histopathological analysis showed that HQHF significantly alleviated liver steatosis and inflammatory cell infiltration. Biochemical analysis indicated that HQHF reduced serum and liver triglyceride levels, serum total cholesterol, liver enzymes (Aspartate Aminotransferase, AST, and Alanine Aminotransferase, ALT), and malondialdehyde (MDA), while increasing glutathione (GSH) levels. Network pharmacology identified 33 bioactive components and 89 key targets, which were enriched in pathways including Mitogen-Activated Protein Kinase (MAPK), Toll-like Receptor (TLR), Interleukin-17 (IL-17), and Advanced Glycation End product-Receptor for Advanced Glycation End product (AGE-RAGE). Six core genes (MMP9, IL1α, CCL2, IL1β, IL6, ICAM-1) were highlighted. Molecular docking confirmed strong binding of major HQHF compounds (e.g., quercetin, baicalin) to these targets, and experimental assays further validated their downregulation in HQHF-treated mice. Conclusion: HQHF exerts lipid-lowering and anti-inflammatory effects in MAFLD by regulating multiple targets and pathways related to lipid metabolism and inflammation.