Mitochondrial respiratory capacity is a critical regulator of CD8+ T cell 
memory development

van der Windt, Gerritje J.W.; Everts, Bart; Chang, Chih-Hao; Curtis, Jonathan D.; Freitas, Tori C.; Amiel, Eyal; Pearce, Edward J.; Pearce, Erika L.

doi:10.1016/j.immuni.2011.12.007

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学術論文

Mitochondrial respiratory capacity is a critical regulator of CD8⁺ T cell memory development

MPS-Authors

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Pearce, Edward J.
Department Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society;

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Pearce, Erika L.
Department Immunometabolism, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society;

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引用

van der Windt, G. J., Everts, B., Chang, C.-H., Curtis, J. D., Freitas, T. C., Amiel, E., Pearce, E. J., & Pearce, E. L. (2012). Mitochondrial respiratory capacity is a critical regulator of CD8⁺ T cell memory development. Immunity, 36, 68-78. doi:10.1016/j.immuni.2011.12.007.

引用: https://hdl.handle.net/21.11116/0000-0006-6115-5

要旨

CD8+ T cells undergo major metabolic changes upon activation, but how metabolism influences the establishment of long-lived memory T cells after infection remains a key question. We have shown here that CD8+ memory T cells, but not CD8+ T effector (Teff) cells, possessed substantial mitochondrial spare respiratory capacity (SRC). SRC is the extra capacity available in cells to produce energy in response to increased stress or work and as such is associated with cellular survival. We found that interleukin-15 (IL-15), a cytokine critical for CD8+ memory T cells, regulated SRC and oxidative metabolism by promoting mitochondrial biogenesis and expression of carnitine palmitoyl transferase (CPT1a), a metabolic enzyme that controls the rate-limiting step to mitochondrial fatty acid oxidation (FAO). These results show how cytokines control the bioenergetic stability of memory T cells after infection by regulating mitochondrial metabolism.