Cited by 17T-cell and B-cell ImmunologyRedox biology and oxidative stressNeutrophil, Myeloperoxidase and Oxidative Mechanisms

Peroxiredoxin II Regulates Effector and Secondary Memory CD8+T Cell Responses

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Michalek, Ryan D., Crump, Katie E., Weant, Ashley E., Hiltbold, Elizabeth M., Juneau, Daniel G., Moon, Eun-Yi, Yu, Dae-Yeul, Poole, Leslie B. +1 more·2012·Journal of Virology

Abstract

Reactive oxygen intermediates (ROI) generated in response to receptor stimulation play an important role in cellular responses. However, the effect of increased H 2 O 2 on an antigen-specific CD8+T cell response was unknown. Following T cell receptor (TCR) stimulation, the expression and oxidation of peroxiredoxin II (PrdxII), a critical antioxidant enzyme, increased in CD8+T cells. Deletion of PrdxII increased ROI, S phase entry, division, and death during in vitro division. During primary acute viral and bacterial infection, the number of effector CD8+T cells in PrdxII-deficient mice was increased, while the number of memory cells were similar to those of the wild-type cells. Adoptive transfer of P14 TCR transgenic cells demonstrated that the increased expansion of effector cells was T cell autonomous. After rechallenge, effector CD8+T cells in mutant animals were more skewed to memory phenotype than cells from wild-type mice, resulting in a larger secondary memory CD8+T cell pool. During chronic viral infection, increased antigen-specific CD8+T cells accumulated in the spleens of PrdxII mutant mice, causing mortality. These results demonstrate that PrdxII controls effector CD8+T cell expansion, secondary memory generation, and immunopathology.

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  • If antioxidant molecules are depleted in T cells, cytokine production can become uncontrolled, potentially resulting in an inflammatory environment that is known to reactivate CMV.

    “Finally, if antioxidant molecules are depleted in T cells, then cytokine production, can become uncontrolled (Michalek et al. 2012), potentially resulting in an inflammatory environment that is also known to reactivate CMV (Docke et al. 1994; Prosch et al. 1995; Stein et al. 1993).”

    From Is immunosenescence influenced by our lifetime “dose” of exercise? (2016) · cites this paper as Michalek et al. 2012

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Authors
Michalek, R. D., Crump, K. E., Weant, A. E., Hiltbold, E. M., Juneau, D. G., Moon, E.-Y., Yu, D.-Y., Poole, L. B., & Grayson, J. M.
Affiliations
  • Metabolon (United States) (US)
  • Wake Forest University Health Sciences (US)
  • Sejong University (KR)
  • Korea Research Institute of Bioscience and Biotechnology (KR)
Venue
Journal of Virology
Published
2012-12-15
Volume
86
Issue
24
Pages
13629-13641
ISSN
  • 0022-538X (ISSN-L)
  • 1098-5514
OpenAlex
W1993723357
Cited by
17
References
54
Citations by year
2026: 3 · 2025: 2 · 2023: 1 · 2022: 1 · 2020: 3 · 2017: 1 · 2016: 1 · 2014: 4 · 2013: 1
FWCI
0.70
Type
journal article
Language
en
Open access
Locations
  • Journal of Virology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • NSUWorks (Nova Southeastern University) (submittedVersion)
  • KRIBB Repository (submittedVersion)
Funders
  • National Cancer Institute (CA126659, R33CA126659)
  • National Institute of General Medical Sciences (GM050389, R01GM050389)
  • National Institute of Allergy and Infectious Diseases (R01AI068952, T32AI007401)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
Keywords
peroxiredoxin 2, CD8+ T cells, reactive oxygen species, hydrogen peroxide, T cell receptor stimulation, effector T cell expansion, chronic viral infection, immunopathology, antioxidant enzymes
MeSH terms
Animals, Immunologic Memory, Mice, Transgenic, Blotting, Western, CD8-Positive T-Lymphocytes, Cell Proliferation, Mice, Peroxiredoxins, Real-Time Polymerase Chain Reaction

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