Nature Communications (Jun 2020)

Metabolic characteristics of CD8+ T cell subsets in young and aged individuals are not predictive of functionality

  • Kylie M. Quinn,
  • Tabinda Hussain,
  • Felix Kraus,
  • Luke E. Formosa,
  • Wai K. Lam,
  • Michael J. Dagley,
  • Eleanor C. Saunders,
  • Lisa M. Assmus,
  • Erica Wynne-Jones,
  • Liyen Loh,
  • Carolien E. van de Sandt,
  • Lucy Cooper,
  • Kim L. Good-Jacobson,
  • Katherine Kedzierska,
  • Laura K. Mackay,
  • Malcolm J. McConville,
  • Georg Ramm,
  • Michael T. Ryan,
  • Nicole L. La Gruta

DOI
https://doi.org/10.1038/s41467-020-16633-7
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 13

Abstract

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Fatty acid oxidation (FAO) is thought to contribute to high spare respiratory capacity (SRC), which in turn affects CD8+ T cell function. Here, the authors show that ex vivo virtual memory T cells (and not antigen experienced memory T cells) have high SRC, a metabolic state that it is affected by ageing and IL-15 signalling and not directly by FAO.