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Updated: Jun 26, 2026

A Mouse Model of Chronic Liver Fibrosis for the Study of Biliary Atresia
Published on: February 3, 2023
[Expression of interleukin-17 in hepatitis B related liver fibrosis]
Yan Xu1, Wen-jun DU, Lai-ying Qin
1Intervention Center, Jinan Infectious Disease Hospital, Medical College of Shandong University, Jinan, China.
Insights
Interleukin-17 (IL-17) levels are elevated in hepatitis B virus (HBV) related liver diseases, particularly in liver cirrhosis. This suggests IL-17 plays a role in the progression of HBV liver fibrosis.
Area of Science:
- Immunology
- Hepatology
- Virology
Context:
- Chronic hepatitis B virus (HBV) infection can lead to severe liver damage.
- Liver fibrosis is a key pathological process in chronic liver diseases.
- Interleukin-17 (IL-17) is a pro-inflammatory cytokine with known roles in various diseases.
Purpose:
- To investigate the association between interleukin-17 (IL-17) levels and the pathogenesis of chronic hepatitis B virus (HBV) related liver diseases.
- To specifically examine the role of IL-17 in the development and progression of liver fibrosis in HBV infection.
Summary:
- Serum IL-17 levels and IL-17 mRNA expression in peripheral blood mononuclear cells (PBMCs) were significantly higher in patients with chronic hepatitis B (CHB), liver cirrhosis (LC), primary hepatitis carcinoma (PHC), and chronic severe hepatitis compared to healthy controls.
- IL-17 levels and liver fibrosis markers (C-IV, LN, HA) were highest in the liver cirrhosis group, showing a positive correlation with Child-Pugh scores.
- These findings indicate a significant increase in IL-17 associated with the severity of HBV-related liver disease and fibrosis.
Impact:
- Highlights IL-17 as a potential biomarker for assessing the severity of HBV-related liver disease.
- Suggests IL-17 as a potential therapeutic target for managing hepatitis B virus-related liver fibrosis.
- Provides insights into the immunological mechanisms underlying liver fibrosis in chronic hepatitis B.
Aim:
To explore the role of interleukin-17 (IL-17) in the pathogenesis and progress of chronic hepatitis B virus (HBV) related liver diseases, especially in hepatitis B related liver fibrosis.
Methods:
Whole vein blood was obtained from the patients with chronic hepatitis B (CHB) (n=36), liver cirrhosis (LC) (n=42) including child-pugh A (n=15), child-pugh B (n=12), child-pugh C (n=15), primary hepatitis carcinoma (PHC) (n=34), chronic severe hepatitis (n=30) and normal control (n=20).The level of serum IL-17 and the expression of IL-17 mRNA in peripheral blood mononuclear cell (PBMC) were analysed by ELISA and RT-PCR respectively. Serum IL-17 and liver fibrosis index (C-IV, LN, HA) concentration of LC classified by child-pugh scores were detected by ELISA.
Results:
The level of serum IL-17 and the expression of IL-17 mRNA in PBMC in four HBV infectious groups were higher than that in control group ( P<0.01). The level of serum IL-17 and the expression of IL-17 mRNA in PBMC in LC group was higher than that in other groups ( P<0.01). The level of serum IL-17 and liver fibrosis index in child-pugh C group in LC patients were higher than that in Child-pugh B group and that in child-pugh B group were higher than that in child-pugh A group (P<0.01). The level of serum IL-17 in LC group positively correlated to child-pugh score and liver fibrosis index (C-IV, LN, HA) (r=0.582, 0.568, 0.682, 0.764, P<0.01).
Conclusion:
IL-17 is obviously increased in HBV related liver diseases, especially in hepatitis B related liver cirrhosis, indicating that IL-17 may play a part in the development of HBV related liver diseases, especially the pathophysiology of hepatitis B related liver fibrosis.
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