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Published on: May 29, 2020
Elevated serum BAFF levels in patients with autoimmune hepatitis
Kiyoshi Migita1, Seigo Abiru, Yumi Maeda
1Clinical Research Center, National Nagasaki Medical Center, Kubara 2-1001-1, Omura 856-8562, Japan. migita@nmc.hosp.go.jp
Elevated B-cell activating factor (BAFF) in autoimmune hepatitis (AIH) correlates with liver injury and disease severity. Treatment with corticosteroids reduced BAFF levels, suggesting its role in AIH pathogenesis.
Area of Science:
- Immunology
- Hepatology
- Biochemistry
Background:
- Autoimmune hepatitis (AIH) pathogenesis involves immune dysregulation.
- B-cell activating factor (BAFF) is crucial for B-cell survival and maturation.
- BAFF belongs to the tumor necrosis factor (TNF) superfamily.
Purpose of the Study:
- To evaluate serum BAFF levels in AIH patients.
- To determine the relationship between BAFF and AIH clinical features.
- To assess BAFF levels in comparison to other liver conditions and healthy controls.
Main Methods:
- Enzyme-linked immunosorbent assay (ELISA) was used to measure serum BAFF levels.
- Study included 55 AIH patients, 14 acute hepatitis (AH) patients, 33 chronic hepatitis C patients, and 33 healthy controls.
- Liver function tests, immunoglobulin levels, and antinuclear antibody titers were analyzed in AIH patients.
Main Results:
- Serum BAFF levels were significantly elevated in AIH patients compared to healthy controls, AH, and chronic hepatitis C patients.
- BAFF showed a positive correlation with aspartate aminotransferase, alanine aminotransferase, total bilirubin, and soluble CD30 in AIH patients.
- Corticosteroid treatment led to a significant reduction in serum BAFF levels in AIH patients.
Conclusions:
- Elevated serum BAFF contributes to liver injury and disease progression in AIH.
- BAFF may serve as a potential biomarker for AIH activity and severity.
- Targeting BAFF could be a therapeutic strategy for AIH.
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