Constitutive Glycolytic Metabolism Supports CD8 T Cell Effector Memory Differentiation during Viral Infection.

作者信息

Phan Anthony T, Doedens Andrew L, Palazon Asis, Tyrakis Petros A, Cheung Kitty P, Johnson Randall S, Goldrath Ananda W

机构信息

Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA.

Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge CB2, UK.

出版信息

Immunity. 2016 Nov 15;45(5):1024-1037. doi: 10.1016/j.immuni.2016.10.017. Epub 2016 Nov 8.

Abstract

Extensive metabolic changes accompany T cell activation, including a switch to glycolytic energy production and increased biosynthesis. Recent studies suggest that subsequent return to reliance on oxidative phosphorylation and increasing spare respiratory capacity are essential for the differentiation of memory CD8 T cells. In contrast, we found that constitutive glycolytic metabolism and suppression of oxidative phosphorylation in CD8 T cells, achieved by conditional deletion of hypoxia-inducible factor regulator Vhl, accelerated CD8 memory cell differentiation during viral infection. Despite sustained glycolysis, CD8 memory cells emerged that upregulated key memory-associated cytokine receptors and transcription factors and showed a heightened response to secondary challenge. In addition, increased glycolysis not only permitted memory formation, but it also favored the formation of long-lived effector-memory CD8 T cells. These data redefine the role of cellular metabolism in memory cell differentiation, showing that reliance on glycolytic metabolism does not hinder formation of a protective memory population.

摘要

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