Cited by 59Cancer Immunotherapy and BiomarkersT-cell and B-cell ImmunologyImmunotherapy and Immune Responses

Formate Supplementation Enhances Antitumor CD8+ T-cell Fitness and Efficacy of PD-1 Blockade

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Rowe, Jared H., Elia, Ilaria, Shahid, Osmaan, Gaudiano, Emily F., Sifnugel, Natalia E., Johnson, Sheila, Reynolds, Amy G., Fung, Megan E. +8 more·2023·Cancer Discovery

Published version of a preprint

Abstract

The tumor microenvironment (TME) restricts antitumor CD8+ T-cell function and immunotherapy responses. Cancer cells compromise the metabolic fitness of CD8+ T cells within the TME, but the mechanisms are largely unknown. Here we demonstrate that one-carbon (1C) metabolism is enhanced in T cells in an antigen-specific manner. Therapeutic supplementation of 1C metabolism using formate enhances CD8+ T-cell fitness and antitumor efficacy of PD-1 blockade in B16-OVA tumors. Formate supplementation drives transcriptional alterations in CD8+ T-cell metabolism and increases gene signatures for cellular proliferation and activation. Combined formate and anti–PD-1 therapy increases tumor-infiltrating CD8+ T cells, which are essential for enhanced tumor control. Our data demonstrate that formate provides metabolic support to CD8+ T cells reinvigorated by anti–PD-1 to overcome a metabolic vulnerability in 1C metabolism in the TME to further improve T-cell function. Significance: This study identifies that deficiencies in 1C metabolism limit the efficacy of PD-1 blockade in B16-OVA tumors. Supplementing 1C metabolism with formate during anti–PD-1 therapy enhances CD8+ T-cell fitness in the TME and CD8+ T-cell–mediated tumor clearance. These findings demonstrate that formate supplementation can enhance exhausted CD8+ T-cell function. See related commentary by Lin et al., p. 2507. This article is featured in Selected Articles from This Issue, p. 2489

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Authors
Rowe, J. H., Elia, I., Shahid, O., Gaudiano, E. F., Sifnugel, N. E., Johnson, S., Reynolds, A. G., Fung, M. E., Joshi, S., LaFleur, M. W., Park, J. S., Pauken, K. E., Rabinowitz, J. D., Freeman, G. J., Haigis, M. C., & Sharpe, A. H.
Affiliations
  • Brigham and Women's Hospital (US)
  • Harvard University (US)
  • Dana-Farber Cancer Institute (US)
  • Princeton University (US)
Corresponding author
  • Haigis, Marcia C.
  • Sharpe, Arlene H.
Venue
Cancer Discovery
Published
2023-09-20
Volume
13
Issue
12
Pages
2566-2583
ISSN
  • 2159-8274 (ISSN-L)
  • 2159-8290
OpenAlex
W4386878350
Cited by
59
References
51
Citations by year
2026: 23 · 2025: 20 · 2024: 15 · 2023: 1
FWCI
7.17
Type
journal article
Language
en
Open access
Locations
  • Cancer Discovery (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Commons-TMC (Texas Medical Center) (submittedVersion)
  • Lirias (submittedVersion)
Funders
  • Roche (N/A)
  • Ludwig Center (N/A)
  • Office of Extramural Research, National Institutes of Health (P50 CA101942, U54 CA224088, R01 CA276866, P01 AI56299)
  • Glenn Foundation for Medical Research (N/A)
  • Cancer Research Institute (CRI4006, CRI3352)
  • European Molecular Biology Organization (ALTF-1078-2017)
Topics
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
one-carbon metabolism, CD8+ T cells, anti-PD-1 therapy, tumor microenvironment, T cell metabolism, T cell exhaustion, antitumor immunity, B16-OVA tumor, combination immunotherapy, tumor-infiltrating T cells
MeSH terms
Formates, Humans, Neoplasms, CD8-Positive T-Lymphocytes, Dietary Supplements, Tumor Microenvironment, Programmed Cell Death 1 Receptor

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