Cited by 207Neuroscience and Neuropharmacology ResearchAmino Acid Enzymes and MetabolismNeuroinflammation and Neurodegeneration Mechanisms

Neurotransmitters regulate energy metabolism in astrocytes: implications for the metabolic trafficking between neural cells

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Magistretti, Pierre J., Sorg, Olivier, Yu, Naichen, Martin, Jean-Luc, Pellerin, Luc·1994·Developmental Neuroscience

Abstract

In recent years a vast array of experimental evidence has indicated the presence of functional receptors for neurotransmitters on nonneuronal cells, in particular astrocytes. The two neurotransmitters vasoactive intestinal peptide (VIP) and noradrenaline (NA) exert profound, receptor-mediated, metabolic actions on astrocytes. Thus both neurotransmitters stimulate glycogenolysis in primary astrocyte cultures, with EC50s of 3 and 20 nM respectively. Astrocytes display basal glucose utilization rates ranging between 3 and 9 nmol/mg prot/min, a value that is remarkably close to glucose utilization of cerebral cortical grey matter as determined by the 2-deoxyglucose autoradiographic technique. NA markedly enhances glucose uptake and phosphorylation by astrocytes, with an EC50 of 1 microM. The metabolic substrate that is released by astrocytes is predominantly lactate and not glucose. Since lactate can support neuronal activity and synaptic function in vitro, the possibility should be considered that glucose uptake by the brain parenchyma occurs predominantly into astrocytes which subsequently release lactate for the use of neurons.

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Crossref · 10.1159/000111349

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  • Astrocytes can produce lactate from glucose.

    “Astrocytes can indeed produce lactate from glucose (Hertz et al., 1988; Magistretti et al., 1993), and this lactate production can be stimulated by glutamate and potassium, which become elevated during neuronal activity (Walz and Mukerji, 1988; Peng et al., 1994; Pellerin and Magistretti, 1996; Bittner et al., 2011).”
  • In separately cultured astrocytes and neurons, glutamate application to cultured astrocytes triggers [3H]-2-deoxyglucose uptake and lactate release, and neurons are capable of consuming lactate as a fuel.

    “For instance, the initial demonstration of feasibility was from separately cultured astrocytes and neurons: glutamate application to cultured astrocytes triggers [3H]-2-deoxyglucose (2-DG; [3H]–2-DG) uptake and lactate release, and neurons are capable of consuming lactate as a fuel (Magistretti et al., 1993; Pellerin and Magistretti, 1994).”

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Authors
Magistretti, P. J., Sorg, O., Yu, N., Martin, J.-L., & Pellerin, L.
Affiliations
University of Lausanne (CH)
Venue
Developmental Neuroscience
Publisher
S. Karger AG
Published
1994-08-18
Volume
15
Issue
3-5
Pages
306-312
ISSN
  • 0378-5866 (ISSN-L)
  • 1421-9859
OpenAlex
W2064182395
Cited by
205
References
0
Citations by year
2026: 1 · 2025: 3 · 2024: 6 · 2023: 1 · 2022: 5 · 2021: 7 · 2020: 5 · 2019: 6 · 2018: 8 · 2017: 10 · 2016: 5 · 2015: 7 · 2014: 10 · 2013: 6 · 2012: 10
FWCI
1.03
Type
journal article
Language
en
Open access
Locations
  • Developmental Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
astrocytes, vasoactive intestinal peptide, norepinephrine, glycogenolysis, glucose uptake, glucose phosphorylation, lactate release, astrocyte-neuron metabolic coupling, energy metabolism, non-neuronal cells
MeSH terms
Animals, Astrocytes, Energy Metabolism, Glucose, Glycogen, Humans, Neurons, Norepinephrine, Vasoactive Intestinal Peptide, Neurotransmitter Agents

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