Proliferation and Function of CD4+ and T Cells from Chronic Hepatitis B Patients

Authors

  • Ekawee Sripariwuth Department of Internal Medicine, Faculty of Medicine, Naresuan University, Phitsanulok 65000, Thailand.
  • Sutatip Pongcharoen Department of Internal Medicine, Faculty of Medicine, Naresuan University, Phitsanulok 65000, Thailand.

Abstract

Objective: Chronic hepatitis B virus infection (CHB) is involved in a deviated immune response to clear the virus. The disease process is caused by CD8+ T cell response. The mechanisms underlying different clinical manifestations of CHB are not clearly known. The present study investigated CD4+ and CD8+ T cell responses to hepatitis B virus (HBV) infection, in terms of cell proliferation and CD69, IL-4, IFN-γ, perforin and granzyme B expression. 

Methods: A HBV peptide, FLLTRILTI and ionomycin/phorbol myrister acetate and phytohemagglutinin were used to stimulate peripheral blood mononuclear cells (PBMC) from patients with chronic HBV infection. The expression of CD69, IL-4, IFN-γ, perforin and granzyme B as well as cell proliferation was assessed. 

Results: All subjects had similar CD69 expression and cell proliferation. However, the number of IL-4+ CD4 T cells increased in hepatitis B e-antigen (HBeAg)-positive CHB patients with increased alanine aminotransferase (ALT), HBV carriers, and HBeAg-positive CHB patients with normal ALT. IFN-γ+ CD4 T cells increased in HBeAg-positive and -negative CHB patients with increased ALT and also in HBV carriers. However, granzyme B-positive CD8+ T cells decreased in HBeAg-negative and -positive CHB patients with normal ALT. 

Conclusion: The present study demonstrated that the different CD4 and CD8 T cell responses may underlie the hepatitis outcomes of CHB. 

 

Keywords: CD4 T cell, CD8 T cell, chronic HBV infection, granzyme B, perforin
Siriraj Med J 2014;66:1-4 

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Published

01-01-2014

How to Cite

Sripariwuth, E., & Pongcharoen, S. (2014). Proliferation and Function of CD4+ and T Cells from Chronic Hepatitis B Patients. Siriraj Medical Journal, 66(1). Retrieved from https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/55286

Issue

Vol. 66 No. 1 (2014): January-February

Section

Original Article

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