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Cell Metab. 2014 Jul 1;20(1):61-72. doi: 10.1016/j.cmet.2014.05.004. Epub 2014 Jun 12.

The glucose transporter Glut1 is selectively essential for CD4 T cell activation and effector function.

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Department of Pharmacology and Cancer Biology, Immunology, Sarah W. Stedman Nutrition and Metabolism Center, Duke University, Durham, NC 27710, USA.
Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
Division of Hematological Malignancies and Cellular Therapy, Department of Medicine, Duke University, Durham, NC 27710, USA.
Fraternal Order of Eagles Diabetes Research Center, Division of Endocrinology and Metabolism, Department of Medicine, Carver College of Medicine University of Iowa, Iowa City, IA 52242, USA.
Department of Pathology, Duke University, Durham, NC 27710, USA.
Contributed equally


CD4 T cell activation leads to proliferation and differentiation into effector (Teff) or regulatory (Treg) cells that mediate or control immunity. While each subset prefers distinct glycolytic or oxidative metabolic programs in vitro, requirements and mechanisms that control T cell glucose uptake and metabolism in vivo are uncertain. Despite expression of multiple glucose transporters, Glut1 deficiency selectively impaired metabolism and function of thymocytes and Teff. Resting T cells were normal until activated, when Glut1 deficiency prevented increased glucose uptake and glycolysis, growth, proliferation, and decreased Teff survival and differentiation. Importantly, Glut1 deficiency decreased Teff expansion and the ability to induce inflammatory disease in vivo. Treg cells, in contrast, were enriched in vivo and appeared functionally unaffected and able to suppress Teff, irrespective of Glut1 expression. These data show a selective in vivo requirement for Glut1 in metabolic reprogramming of CD4 T cell activation and Teff expansion and survival.

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