Cited by 2,313Neuroscience and Neuropharmacology ResearchAmino Acid Enzymes and MetabolismNeuroinflammation and Neurodegeneration Mechanisms

Brain energy metabolism: focus on Astrocyte-neuron metabolic cooperation

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Bélanger, Mireille, Allaman, Igor, Magistretti, Pierre J.·2011·Cell Metabolism

Abstract

The energy requirements of the brain are very high, and tight regulatory mechanisms operate to ensure adequate spatial and temporal delivery of energy substrates in register with neuronal activity. Astrocytes-a type of glial cell-have emerged as active players in brain energy delivery, production, utilization, and storage. Our understanding of neuroenergetics is rapidly evolving from a "neurocentric" view to a more integrated picture involving an intense cooperativity between astrocytes and neurons. This review focuses on the cellular aspects of brain energy metabolism, with a particular emphasis on the metabolic interactions between neurons and astrocytes.

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Crossref · 10.1016/j.cmet.2011.08.016

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134 of 134 references verified0 citation errors · 0 not checkable

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  • Secreted ApoE is generally presumed to be converted into HDL-like LNPs by astrocytes.

    “As the major lipid carrier in the brain, secreted ApoE is generally presumed to be converted into HDL-like LNPs by astrocytes.”
  • These LNPs undergo receptor-mediated endocytosis in neurons and glia cells where their lipid constituents are disassembled in lysosomes to supply these constituents to recipient cells.

    “In turn, these LNPs undergo receptor-mediated endocytosis in neurons and glia cells where their lipid constituents are disassembled in lysosomes to supply these constituents to the recipient cells.22, 44–47”
  • Astrocytes provide critical support to neurons for synapse formation/pruning, neurotransmitter modulation, and metabolic homeostasis.

    “Astrocytes provide critical support to neurons for synapse formation/pruning, neurotransmitter modulation, and metabolic homeostasis (Bélanger et al., 2011; Jha and Morrison, 2018).”

    From ApoE4 Impairs Neuron-Astrocyte Coupling of Fatty Acid Metabolism (2021) · cites this paper as Bélanger et al., 2011

  • Neuronal cells in the brain have a particularly high metabolism, using 20% and 25% of total consumed oxygen and glucose, making neurons and their mitochondria particularly susceptible to ROS damage.

    “Neuronal cells in the brain have a particularly high metabolism, using 20% and 25% of the total consumed oxygen and glucose,34 this makes neurons and their mitochondria particularly susceptible to ROS damage.”

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Authors
Bélanger, M., Allaman, I., & Magistretti, P. J.
Affiliations
  • École Polytechnique Fédérale de Lausanne (CH)
  • Centre Hospitalier Universitaire Vaudois (CH)
Corresponding author
Magistretti, Pierre J.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2011-12
Volume
14
Issue
6
Pages
724-738
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2016927879
Cited by
2,313
References
135
Citations by year
2026: 169 · 2025: 194 · 2024: 206 · 2023: 207 · 2022: 197 · 2021: 218 · 2020: 203 · 2019: 175 · 2018: 159 · 2017: 152 · 2016: 137 · 2015: 111 · 2014: 76 · 2013: 73 · 2012: 31
FWCI
5.48
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
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
brain energy metabolism, astrocytes, neurons, neuroenergetics, glial cells, energy storage, neuronal activity
MeSH terms
Astrocytes, Brain, Energy Metabolism, Glycogen, Models, Biological, Neurons, Regional Blood Flow, Oxidative Stress, Lactic Acid

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