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Related Experiment Videos

Glucose transporter expression in the central nervous system: relationship to synaptic function.

Bruce S McEwen1, Lawrence P Reagan

  • 1Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, New York, NY 10021, USA.

European Journal of Pharmacology
|April 20, 2004
PubMed
Summary

Facilitative glucose transporters (GLUTs) are vital for brain energy. This review details GLUT localization, regulation, and insulin-stimulated activity in the central nervous system (CNS).

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Metabolism

Background:

  • Facilitative glucose transporter (GLUT) proteins mediate glucose uptake in peripheral tissues and the brain.
  • GLUT expression, regulation, and activity are crucial for maintaining neuronal homeostasis, as glucose is the brain's primary energy source.
  • GLUTs in the brain show cell-type and region-specific localization, indicating regulated glucose transport across the blood-brain barrier.

Purpose of the Study:

  • To review the localization of GLUT isoforms within the central nervous system (CNS).
  • To discuss the regulation, activity, and insulin-stimulated trafficking of GLUTs in the CNS.
  • To explore the role of GLUTs in the central actions of insulin and glucose.

Main Methods:

  • Literature review of studies on GLUT expression and function in the CNS.

Related Experiment Videos

  • Analysis of research on GLUT regulation and activity, particularly in response to insulin.
  • Examination of studies investigating glucose transport across the blood-brain barrier.

    • Main Results:

    • GLUTs are expressed in various cell types and regions within the CNS, with specific isoforms showing distinct localizations.
    • Insulin-sensitive GLUTs are present in the brain, suggesting a role in mediating insulin's central effects.
    • Glucose transport in the brain is tightly regulated and compartmentalized, involving specific GLUT isoforms.

    Conclusions:

    • GLUTs play a critical role in brain glucose metabolism and neuronal function.
    • Understanding GLUT localization and regulation in the CNS is essential for comprehending insulin and glucose signaling.
    • Further research into CNS GLUTs may reveal new therapeutic targets for metabolic and neurological disorders.