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Gastroenterology Research and Practice
Volume 2014, Article ID 413952, 6 pages
http://dx.doi.org/10.1155/2014/413952
Research Article

Hepatitis B e Antigen Seroconversion Is Related with the Function of Dendritic Cells in Chronic Hepatitis B Virus Infection

1Department of Gastroenterology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
2Department of Hepatology, Sixth Affiliated Hospital of Wenzhou Medical University, Lishui, Zhejiang 323000, China

Received 6 July 2014; Accepted 13 November 2014; Published 9 December 2014

Academic Editor: Paolo Gionchetti

Copyright © 2014 Chunjing Lin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aim. To investigate the relationship between hepatitis B e antigen seroconversion and the function of dendritic cells (DC) in patients with hepatitis B virus. Methods. The peripheral blood mononuclear cells (PBMC) from 21 chronic HBV patients in immune tolerance state, 23 patients in inactive HBsAg carrier state, and 10 healthy HBV-naive blood donors were incubated and induced into DC in presence of granulocyte-macrophage colony stimulating factor (GM-CSF) and interleukin-4 (IL-4), respectively. The expressions of surface markers on DC were detected by flow cytometry, and the stimulatory capacity of DC in allogenic mixed leukocyte reaction (MLR) was tested by CCK-8, and the level of cytokines released by DC was analyzed by enzyme-linked immunosorbent assay (ELISA). Results. DC from patients in immune tolerance showed a remarkably lower surface expression of CD80, CD86, and HLA-DR and exhibited an impaired stimulatory capacity in MLR and reduced secretion of IL-12, as compared to the patients in inactive HBsAg carrier state. There was no significant difference between the indicators from the patients in inactive HBsAg carrier state and healthy subjects. There was a significant difference of HBV DNA level between immune tolerance and inactive HBsAg carrier group () and a negative correlation between HBV DNA level and the expressions of dendritic cells in both groups, respectively (). Conclusion. DC from patients in inactive HBsAg carrier state shows stronger function in comparison with patients in immune tolerance, the expressions of dendritic cells correlate with HBV DNA level, and the function stage of DC may play an important role in HBeAg seroconversion.