Influence of cytotoxic T lymphocyte-associated antigen 4 polymorphisms on the outcomes of hepatitis B virus infection

  • Authors:
    • Man Chen
    • Ying Chang
    • Feng Tang
    • Qiong-Hui Xie
    • Jin Li
    • Hong Yang
    • Xing-Xing  He
    • Ju-Sheng Lin
  • View Affiliations

  • Published online on: November 22, 2013     https://doi.org/10.3892/mmr.2013.1825
  • Pages: 645-652
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Abstract

Cytotoxic T lymphocyte‑associated antigen 4 (CTLA‑4) regulates T‑cell activation and Th1/Th2 cytokine production and is involved in the immune response against Hepatitis B virus (HBV) infection. To detect the association of the CTLA‑4 gene polymorphisms with susceptibility to HBV infection a hospital‑based case‑control study was conducted. A total of 1,119 unrelated individuals were recruited. The CTLA‑4 variants rs5742909, rs231775 and rs3087243 were genotyped via the TaqMan method in this cohort. A comparison with a chronic active hepatitis B group revealed that the SNP rs231775 exhibited significant susceptibility to HBV progression, with the highest odds ratio (OR) reaching 1.659 and P=0.009‑0.049. Although an HBV clearance group was used as a control, results of the present study demonstrated an association of rs5742909 with viral persistence [OR=1.694, 95% confidence intervals (CI)=1.124‑2.553 and P=0.012]. Subsequent analyses revealed risk haplotypes (C‑A‑A and T‑A‑G, for which the highest OR reached 1.865) compared with the protective haplotype C‑G‑G. Therefore, SNPs in the CTLA‑4 gene may be associated with HBV progression and viral persistence which is consistent with its emerging role in the T regulatory cells in the pathogenesis of disease.
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2014-February
Volume 9 Issue 2

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Chen M, Chang Y, Tang F, Xie Q, Li J, Yang H, He X and Lin J: Influence of cytotoxic T lymphocyte-associated antigen 4 polymorphisms on the outcomes of hepatitis B virus infection. Mol Med Rep 9: 645-652, 2014
APA
Chen, M., Chang, Y., Tang, F., Xie, Q., Li, J., Yang, H. ... Lin, J. (2014). Influence of cytotoxic T lymphocyte-associated antigen 4 polymorphisms on the outcomes of hepatitis B virus infection. Molecular Medicine Reports, 9, 645-652. https://doi.org/10.3892/mmr.2013.1825
MLA
Chen, M., Chang, Y., Tang, F., Xie, Q., Li, J., Yang, H., He, X., Lin, J."Influence of cytotoxic T lymphocyte-associated antigen 4 polymorphisms on the outcomes of hepatitis B virus infection". Molecular Medicine Reports 9.2 (2014): 645-652.
Chicago
Chen, M., Chang, Y., Tang, F., Xie, Q., Li, J., Yang, H., He, X., Lin, J."Influence of cytotoxic T lymphocyte-associated antigen 4 polymorphisms on the outcomes of hepatitis B virus infection". Molecular Medicine Reports 9, no. 2 (2014): 645-652. https://doi.org/10.3892/mmr.2013.1825