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Significance Naive T cells at quiescent state utilize mitochondrial respiration to generate ATP. In response to antigen, activated T cells through T cell receptor (TCR) and CD28 differentiate to TH 1, TH 2, or TH 17 effector cells with an induction of aerobic glycolysis. Here, we demonstrate a role for DUSP6 in the glycolysis commitment during T cell activation. DUSP6 deficiency prompts activated T cells to rely on glucose-independent fuels. We show that DUSP6 fine-tunes TCR-MAPK signaling, which determines follicular helper T (TFH ) effector-cell differentiation regardless of a glycolytic defect. Our findings imply that glycolysis is required for survival of activated T cells but optional for IL-21 production in TFH cell differentiation.

DUSP6 mediates T cell receptor-engaged glycolysis and restrains T FH cell differentiation

DUSP6 mediates T cell receptor-engaged glycolysis and restrains T _FH cell differentiation