Cited by 20Redox biology and oxidative stressT-cell and B-cell ImmunologyImmunotherapy and Immune Responses

Redox Remodeling by Dendritic Cells Protects Antigen-Specific T Cells against Oxidative Stress

Martner, Anna, Aurelius, Johan, Rydström, Anna, Hellstrand, Kristoffer, Thorén, Fredrik B·2011·The Journal of Immunology

Abstract

Microorganisms and microbial products induce the release of reactive oxygen species (ROS) from monocytes and other myeloid cells, which may trigger dysfunction and apoptosis of adjacent lymphocytes. Therefore, T cell-mediated immunity is likely to comprise mechanisms of T cell protection against ROS-inflicted toxicity. The present study aimed to clarify the dynamics of reduced sulfhydryl groups (thiols) in human T cells after presentation of viral and bacterial Ags by dendritic cells (DCs) or B cells. DCs, but not B cells, efficiently triggered intra- and extracellular thiol expression in T cells with corresponding Ag specificity. After interaction with DCs, the Ag-specific T cells acquired the capacity to neutralize exogenous oxygen radicals and resisted ROS-induced apoptosis. Our results imply that DCs provide Ag-specific T cells with antioxidative thiols during Ag presentation, which suggests a novel aspect of DC/T cell cross-talk of relevance to the maintenance of specific immunity in inflamed or infected tissue.

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Crossref · 10.4049/jimmunol.1102138

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32 of 32 references verified0 citation errors · 0 not checkable

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Authors
Martner, A., Aurelius, J., Rydström, A., Hellstrand, K., & Thorén, F. B.
Affiliations
University of Gothenburg (SE)
Corresponding author
  • Martner, Anna
  • Aurelius, Johan
  • Hellstrand, Kristoffer
Venue
The Journal of Immunology
Published
2011-12
Volume
187
Issue
12
Pages
6243-6248
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2129125910
Cited by
20
References
32
Citations by year
2024: 1 · 2023: 1 · 2022: 1 · 2021: 1 · 2018: 1 · 2017: 2 · 2016: 1 · 2015: 4 · 2014: 4 · 2013: 2 · 2012: 2
FWCI
1.04
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
dendritic cells, antigen-presenting cells, oxidative stress, reactive oxygen species, thiols, antioxidant defense, T cell apoptosis, viral antigens, bacterial antigens, B cells, T cell activation
MeSH terms
Cell Communication, Cell Membrane, Cells, Cultured, Cytomegalovirus, Dendritic Cells, Enterotoxins, Humans, Intracellular Fluid, Oxidation-Reduction, Sulfhydryl Compounds, T-Lymphocyte Subsets, Antigen Presentation, Oxidative Stress, CD8-Positive T-Lymphocytes, Coculture Techniques, Epitopes, T-Lymphocyte

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