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Med Arch. 2023; 77(2): 142-145

Association Between Serum Cytotoxic T Lymphocyte Antigen (CTLA)-4 Level and Disease Progression in Patients With Chronic Hepatitis B

Darmadi Darmadi, Dharma Lindarto, Jelita Siregar, Tri Widyawati, Muhammad Rusda, Mustafa Mahmud Amin, Fauzi Yusuf, Putri Chairani Eyanoer, Masrul Lubis, Imelda Rey.


Backgroud: Immune impairment, marked by increased expression of cytotoxic T lymphocyte antigen (CTLA)-4, promotes the disease progression of chronic hepatitis B. Objective: This study aimed to determine the association between serum CTLA-4 level and disease progression in patients with chronic hepatitis B. Methods: A cross-sectional study was conducted at Haji Adam Malik General Hospital Medan, Indonesia between October 2021 to September 2022. A total of 150 participants were enrolled. Patients aged 18 years or older with evidence of chronic hepatitis B, HBV-related liver cirrhosis, and HBV-related hepatocellular carcinoma (HCC) were enrolled. Exclusion criteria were history of chronic hepatotoxic drug consumption, underlying liver abnormalities other than HBV infection, and liver injury due to metastasized malignancy from other sites. Serum CTLA-4 level was determined from serum using human CTLA-4 enzyme linked immunosorbent assay kit. Results: Most participants were males and aged between 40 and 60 years. Serum CTLA-4 level was positively associated with chronic hepatitis B progression (P

Key words: chronic hepatitis B, CTLA-4, hepatocellular carcinoma, liver cirrhosis.

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