Dopamine Inhibits the Expression of Hepatitis B Virus Surface and e Antigens by Activating the JAK/STAT Pathway and Upregulating Interferon-stimulated Gene 15 Expression
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View abstract on PubMed
Summary
This summary is machine-generated.Dopamine treatment effectively reduces hepatitis B virus (HBV) antigens, HBsAg and HBeAg, by activating the JAK/STAT pathway and boosting ISG15 expression. This finding offers a potential new therapeutic strategy for HBV infection.
Area Of Science
- Hepatology
- Virology
- Immunology
Background
- Hepatitis B virus (HBV) infection poses significant risks for cirrhosis and liver cancer, with challenging treatment options.
- Previous research indicated a dopamine analog's ability to inhibit HBV pregenomic RNA packaging into capsids.
Purpose Of The Study
- To investigate the impact of dopamine on hepatitis B virus surface antigen (HBsAg) and e antigen (HBeAg) expression.
- To elucidate the molecular mechanisms underlying dopamine's effect on HBV antigen production.
Main Methods
- Utilized dopamine-treated HBV-infected cell lines (HepG2.2.15, NTCP-G2) to assess HBsAg and HBeAg levels.
- Analyzed interferon-stimulated gene 15 (ISG15) expression and its role via knockdown experiments.
- Investigated the Janus kinase (JAK)/signal transducer and activator of transcription (STAT) pathway activation.
- Employed a mouse model of adeno-associated virus/HBV infection to evaluate in vivo effects.
Main Results
- Dopamine significantly inhibited HBsAg and HBeAg expression in cell lines and a mouse model.
- Dopamine treatment upregulated ISG15 expression, and ISG15 knockdown reversed the inhibitory effect on HBsAg and HBeAg.
- Dopamine activated the JAK/STAT pathway, leading to increased ISG15 expression and subsequent downregulation of HBV antigens.
Conclusions
- Dopamine effectively suppresses HBsAg and HBeAg expression in HBV infection.
- The mechanism involves dopamine-induced activation of the JAK/STAT pathway and subsequent upregulation of ISG15.
- This study highlights a novel therapeutic pathway for managing HBV infection.
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