The Expression of Programmed Death-1 in Circulating CD4+ and CD8+ T Cells during Hepatitis B Virus Infection Progression and Its Correlation with Clinical Baseline Characteristics |
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Authors: | Ping Xu Yong-Jing Chen Hui Chen Xiao-Yan Zhu Hua-Feng Song Li-Juan Cao Xue-Feng Wang |
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Affiliation: | *The Affiliated Infectious Hospital of Soochow University, Suzhou, China.;†Key Laboratory of Infection and Immunity of Suzhou City, Suzhou, China.;‡Medical Biotechnology Institute, Medical College of Soochow University, Suzhou, China.;§School of Biology and Basic Medical Sciences, Medical College of Soochow University, Suzhou, China. |
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Abstract: | Background/AimsProgrammed death-1 (PD-1) expression was investigated in CD4+ and CD8+ T cells from hepatitis B virus (HBV)-infected patients at the chronic hepatitis B (CHB) infection, liver cirrhosis (LC), and hepatocellular carcinoma (HCC) stages.MethodsPD-1 expression in circulating CD4+ and CD8+ T cells was detected by flow cytometry. The correlations between PD-1 expression and HBV viral load, alanine aminotransaminase (ALT) levels and aspartate aminotransferase (AST) levels were analyzed using GraphPad Prism 5.0.ResultsPD-1 expression in CD4+ and CD8+ T cells was significantly increased in both the CHB group and advanced-stage group (LC plus HCC). In the CHB group, PD-1 expression in both CD4+ and CD8+ T cells was positively correlated with the HBV viral load, ALT, and AST levels. However, in the LC plus HCC group, significant correlations between PD-1 expression and the clinical parameters were nearly absent.ConclusionsPD-1 expression in peripheral CD4+ and CD8+ T cells is dynamic, changes with HBV infection progression, and is related to HBV viral load and liver function, especially in CHB. PD-1 expression could be utilized as a potential clinical indicator to determine the extent of virus replication and liver injury. |
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Keywords: | Programmed death-1 Hepatitis B virus Hepatitis B chronic Liver cirrhosis Carcinoma hepatocellular |
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