Fever supports CD8+ effector T cell responses by promoting mitochondrial translation

David OSullivan, Michal A. Stanczak, Matteo Villa, Franziska M. Uhl, Mauro Corrado, Ramon I. Klein Geltink, David E. Sanin, Petya Apostolova, Nisha Rana, Joy Edwards-Hicks, Katarzyna M. Grzes, Agnieszka M. Kabat, Ryan L. Kyle, Mario Fabri, Jonathan D. Curtis, Michael D. Buck, Annette E. Patterson, Annamaria Regina, Cameron S. Field, Francesc BaixauliDaniel J. Puleston, Edward J. Pearce, Robert Zeiser, Erika L. Pearce

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Fever can provide a survival advantage during infection. Metabolic processes are sensitive to environmental conditions, but the effect of fever on T cell metabolism is not well characterized. We show that in activated CD8+ T cells, exposure to febrile temperature (39 °C) augmented metabolic activity and T cell effector functions, despite having a limited effect on proliferation or activation marker expression. Transcriptional profiling revealed an up-regulation of mitochondrial pathways, which was consistent with increased mass and metabolism observed in T cells exposed to 39 °C. Through in vitro and in vivo models, we determined that mitochondrial translation is integral to the enhanced metabolic activity and function of CD8+ T cells exposed to febrile temperature. Transiently exposing donor lymphocytes to 39 °C prior to infusion in a myeloid leukemia mouse model conferred enhanced therapeutic efficacy, raising the possibility that exposure of T cells to febrile temperatures could have clinical potential.

Original languageEnglish
Article numbere2023752118
JournalProceedings of the National Academy of Sciences of the United States of America
Volume118
Issue number25
DOIs
StatePublished - 22 Jun 2021
Externally publishedYes

Keywords

  • T cell
  • fever
  • immunology
  • metabolism
  • mitochondria

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