Cited by 1,559T-cell and B-cell ImmunologyImmune responses and vaccinationsImmunotherapy and Immune Responses

Enhancing CD8 T-cell memory by modulating fatty acid metabolism

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Pearce, Erika L., Walsh, Matthew C., Cejas, Pedro J., Harms, Gretchen M., Shen, Hao, Wang, Li-San, Jones, Russell G., Choi, Yongwon·2009·Nature

Abstract

CD8 T cells, which have a crucial role in immunity to infection and cancer, are maintained in constant numbers, but on antigen stimulation undergo a developmental program characterized by distinct phases encompassing the expansion and then contraction of antigen-specific effector (T(E)) populations, followed by the persistence of long-lived memory (T(M)) cells. Although this predictable pattern of CD8 T-cell responses is well established, the underlying cellular mechanisms regulating the transition to T(M) cells remain undefined. Here we show that tumour necrosis factor (TNF) receptor-associated factor 6 (TRAF6), an adaptor protein in the TNF-receptor and interleukin-1R/Toll-like receptor superfamily, regulates CD8 T(M)-cell development after infection by modulating fatty acid metabolism. We show that mice with a T-cell-specific deletion of TRAF6 mount robust CD8 T(E)-cell responses, but have a profound defect in their ability to generate T(M) cells that is characterized by the disappearance of antigen-specific cells in the weeks after primary immunization. Microarray analyses revealed that TRAF6-deficient CD8 T cells exhibit altered expression of genes that regulate fatty acid metabolism. Consistent with this, activated CD8 T cells lacking TRAF6 display defective AMP-activated kinase activation and mitochondrial fatty acid oxidation (FAO) in response to growth factor withdrawal. Administration of the anti-diabetic drug metformin restored FAO and CD8 T(M)-cell generation in the absence of TRAF6. This treatment also increased CD8 T(M) cells in wild-type mice, and consequently was able to considerably improve the efficacy of an experimental anti-cancer vaccine.

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  • Metformin enhances T cell memory generation in mice when administered after primary immunization.

    “metformin was shown to enhance T cell memory generation in mice when administered after primary immunization [75].”
  • Memory CD8+ T cells (Tm) contain more mitochondria and have greater spare respiratory capacity, supported by fatty acid oxidation for ATP production.

    “Tm cells display increased mitochondrial number and spare respiratory capacity, which is fueled by fatty acid oxidation to generate copious amount of ATP (Pearce et al., 2009; van der Windt et al., 2012).”

    From Mitochondria in the Regulation of Innate and Adaptive Immunity (2015) · cites this paper as Pearce et al., 2009

  • Reducing or increasing AMPK, a positive regulator of fatty acid oxidation, respectively decreases or increases memory T cell formation.

    “The importance of fatty acid oxidation for Tm cells is bolstered by the observations that diminishing or enhancing AMPK, a positive regulator of fatty acid oxidation, decreases or increases formation of memory T cells (MacIver et al., 2011; Pearce et al., 2009; Rolf et al., 2013; Tamás et al., 2010).”

    From Mitochondria in the Regulation of Innate and Adaptive Immunity (2015) · cites this paper as Pearce et al., 2009

  • FAO is fundamental for the survival and function of memory CD8+ T cells, unlike effector cells that rely on glycolysis and glutaminolysis for energy.

    “FAO is fundamental for the survival and function of memory CD8+ T cells, unlike effector cells that rely on glycolysis and glutaminolysis for energy.60,61”
  • Rapamycin, which inhibits mTORC1, enhances generation of CD8 memory T cells.

    “Consistent with this, the drug rapamycin, which also inhibits mTORC1, enhances the generation of CD8 TM cells (17, 19, 20).”

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Research works printed but not linked: 1

  1. [35]Buzzai M Systemic treatment with the antidiabetic drug metformin selectively impairs p53-deficient tumor cell growth Cancer Res 2007 67 14 6745 17638885

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Authors
Pearce, E. L., Walsh, M. C., Cejas, P. J., Harms, G. M., Shen, H., Wang, L.-S., Jones, R. G., & Choi, Y.
Affiliations
  • University of Pennsylvania (US)
  • McGill University (CA)
Corresponding author
Choi, Yongwon
Venue
Nature
Published
2009-06-03
Volume
460
Issue
7251
Pages
103-107
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W1999324987
Cited by
1,559
References
41
Citations by year
2026: 68 · 2025: 72 · 2024: 89 · 2023: 120 · 2022: 121 · 2021: 120 · 2020: 135 · 2019: 100 · 2018: 98 · 2017: 101 · 2016: 85 · 2015: 93 · 2014: 75 · 2013: 78 · 2012: 73
FWCI
29.05
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institutes of Health
  • Canadian Institutes of Health Research
  • National Cancer Institute
  • National Institute of Allergy and Infectious Diseases (R01AI064909)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
CD8+ T cell memory, fatty acid metabolism, TRAF6, mitochondrial fatty acid oxidation, AMPK, glucose metabolism, effector T cells, memory T cells, metformin, cancer vaccines, T cell metabolism, infection immunity
MeSH terms
Animals, Fatty Acids, Hypoglycemic Agents, Immunologic Memory, Listeriosis, Listeria monocytogenes, Metformin, Mice, Inbred C57BL, CD8-Positive T-Lymphocytes, TNF Receptor-Associated Factor 6, Adaptor Proteins, Signal Transducing, Proto-Oncogene Proteins c-cbl, Mice

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