Reduction in Liver Cancer Risk by Quercetin via Modulation of Urate Levels: Insights from Drug-Target Mendelian...

Area of Science:

• Biochemistry and Molecular Biology
• Genetics and Genomics
• Hepatology

Background:

• Quercetin, a dietary flavonoid, exhibits hepatoprotective effects.
• Elevated serum urate levels are linked to increased liver cancer risk.
• Quercetin demonstrates urate-lowering properties.

Purpose of the Study:

• To investigate if quercetin reduces liver cancer risk by modulating urate levels.
• To explore the causal relationship between urate levels and hepatic diseases.
• To utilize bioinformatics to assess quercetin's preventive potential.

Main Methods:

• Drug-target Mendelian randomization using genome-wide association study data.
• Integration of findings with Gene Expression Omnibus (GEO) datasets.
• Immune infiltration analysis using xCell and TIMER tools.

Main Results:

• Urate elevation mediated by ABCG2 is a causal risk factor for hepatocellular carcinoma, cholangiocarcinoma, and liver fibrosis.
• ABCG2 expression was elevated in cholangiocarcinoma endothelial cells and associated with immune cell infiltration.
• ABCG2 expression was not linked to poor prognosis in established liver cancers.

Conclusions:

• Quercetin's interaction with ABCG2 supports its role in preventing hepatic diseases.
• Findings suggest quercetin as a preventive dietary supplement, not a treatment for existing liver cancer.
• Modulation of urate levels by quercetin may underlie its hepatoprotective effects.