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Adenosine monophosphate-activated protein kinase (AMPK) is a serine/threonine kinase and is crucial for cellular energy homeostasis. The exact role of AMPK during memory CD8(+) T-cell differentiation, a process that changes from the metabolically active state of effector T cells to one of quiescence in memory cells is not well understood; however, a report by Cantrell and colleagues [Eur. J. Immunol. 2013. 43: 889-896] in this issue of the European Journal of Immunology shows that AMPK, by sensing glucose stress, is an important upstream molecule of mammalian target of rapamycin (mTOR) complex 1 for memory CD8(+) T-cell differentiation. This study provides new insights into how AMPK monitors energy stress to control effector and memory CD8(+) T-cell formation as discussed in this Commentary. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Citation

Koichi Araki, Rafi Ahmed. AMPK: a metabolic switch for CD8+ T-cell memory. European journal of immunology. 2013 Apr;43(4):878-81

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PMID: 23504580

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