Brusatol ameliorates psoriatic dyslipidemia by targeting IL-1β to restore AMPK-mediated lipid homeostasis

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Background Psoriasis-associated dyslipidemia presents as a critical comorbidity characterized by a self-perpetuating cycle of metabolic dysfunction and chronic inflammation. Current treatment paradigms lack the capacity to simultaneously modulate these interconnected pathological axes. Here we investigated the efficacy and mechanisms of brusatol (a natural quassinoid derived from Bruceae Fructus) against psoriatic dyslipidemia from the insight of restoring lipid homeostasis. Methods The in vitro efficacy of brusatol was assessed in TNF-α-stimulated HaCaT keratinocytes by evaluating proliferation, apoptosis, and inflammatory responses. In vivo, its therapeutic activity and systemic toxicity were examined in an imiquimod-induced psoriatic mouse model using PASI scoring, histopathological analysis, serum biochemical markers (TC, TG, ALT, AST, Cre), inflammatory cytokines (TNF-α, IL-1β, IL-17A), and BBB-chip analysis. Integrated proteomics and lipidomics of skin tissue and serum revealed dysregulated pathways, and subsequent target engagement was confirmed via molecular docking, CETSA, and DARTS. Mechanistic investigations included IL-1β overexpression, Co-IP, GST pull-down and AMPK pathway analysis (Western blot, qPCR) was explored to delineate the regulatory mechanisms. Results Brusatol dose-dependently suppresses proliferation and inflammatory mediator expression in TNF-α-induce

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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