Immune Alterations in Patients with Anti-Interferon-γ Autoantibodies

PLoS One. 2016 Jan 4;11(1):e0145983. doi: 10.1371/journal.pone.0145983. eCollection 2016.

Abstract

Autoantibodies against interferon-gamma (IFN-γ) can cause immunodeficiency and are associated with various opportunistic infections. In the present study, we investigated other cellular immune parameters for a better understanding of the immunodeficiency condition in the patients. The numbers of WBC, monocytes and NK cells were increased in patients with anti-IFN-γ autoantibodies (AAbs). Upon TCR activation, T cell proliferation and IL-2 receptor of the patients remained intact. Nonetheless, the Th1 cytokine (IFN-γ and TNF-α) production was up-regulated. The production of Th2 (IL-4) and Th17 (IL-17) cytokines was unchanged. We suggest that, in addition to the presence of anti-IFN-γ autoantibodies, alterations in the cellular immune functions may also contribute to this immunodeficiency.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Autoantibodies / blood*
  • Case-Control Studies
  • Cytokines / biosynthesis
  • Humans
  • Immunity, Cellular
  • Immunologic Deficiency Syndromes / immunology*
  • Interferon-gamma / immunology*
  • T-Lymphocytes / immunology

Substances

  • Autoantibodies
  • Cytokines
  • Interferon-gamma

Supplementary concepts

  • Immune Deficiency Disease

Grants and funding

This work was supported by the National Research University Project under Thailand’s Office of the Higher Education Commission for Chiang Mai University to KS, Chiang Mai University Center of Excellence grant for Biomedical Technology Research Center to KW, and Thailand Research Fund [TRG5780017] to SP. NC is a postdoctoral researcher supported by Chiang Mai University at the Biomedical Technology Research Center. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.