ArticleFrontiers in cellular neuroscience2013
Multifunctional role of astrocytes as gatekeepers of neuronal energy supply.
Article in Frontiers in cellular neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 142 papers.
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Who cites it
142 citing papers in PubMed, 255 citations in OpenAlex.
- Astrocyte-Derived Extracellular Vesicles and the Evolution of Neural Complexity: Perspectives on Vesicle-Mediated Neuron-Glia Communication.Molecular neurobiology · 2026Review
- Astrocytic Redox Homeostasis as a Metabolic Modulator of DNA Damage and Repair in the Ischemic Penumbra.Cells · 2026Review
- Progranulin deficiency in the brain activates an insulin signaling pathway that may promote neurodegeneration.iScience · 2026Article
- A Protective Role of Hydrogen Sulfide Donor GYY4137 Through Activated Microglia-induced Anti-inflammatory Cytokines in the Spinal Cord of Diabetic Rats.Molecular neurobiology · 2026Article
- Aging Effects on Metabolic Sensor and Glycogen Metabolism in Old Male versus Female Rat Primary Hypothalamic Astrocyte Cultures.Neuroglia (Basel, Switzerland) · 2025Article
- Sex-specific recurrent insulin-induced hypoglycemia (RIIH) effects on ventromedial hypothalamic nucleus astrocyte metabolic sensor expression and glycogen metabolism.Neuroscience · 2025Article
- NMR-Based Metabolomic Profiling for Brain Cancer Diagnosis and Treatment Guidance.Metabolites · 2025Review
- Sex-dimorphic betaScientific reports · 2025Article
- Optical coherence tomography angiography biomarkers in multiple sclerosis and neuromyelitis optica spectrum disorders: a systematic review.International journal of retina and vitreous · 2025Review
- Astrocyte glucose-6-phosphatase-Beta regulates ventromedial hypothalamic nucleus glucose counterregulatory neurotransmission and systemic hormone profiles.Neuropeptides · 2025Article
- Glutamate: Molecular Mechanisms and Signaling Pathway in Alzheimer's Disease, a Potential Therapeutic Target.Molecules (Basel, Switzerland) · 2024Review
- Sex-dimorphic effects of glucose transporter-2 gene knockdown on hypothalamic primary astrocyte phosphoinositide-3-kinase (PI3K)/protein kinase B (PKB/Akt)/mammalian target of rapamycin (mTOR) cascade protein expression and phosphorylation.Molecular and cellular endocrinology · 2024Article
- Brain Metabolism in Health and Neurodegeneration: The Interplay Among Neurons and Astrocytes.Cells · 2024Review
- Glucose transporter-2 regulation of VMN GABA neuron metabolic sensor and transmitter gene expression.Scientific reports · 2024Article
- Systematic Analysis of Biological Processes Reveals Gene Co-expression Modules Driving Pathway Dysregulation in Alzheimer's Disease.Aging and disease · 2024Article
- GLUT2 regulation of p38 MAPK isoform protein expression and p38 phosphorylation in male versus female rat hypothalamic primary astrocyte Cultures.IBRO neuroscience reports · 2024Article
- Systematic Analysis of Biological Processes Reveals Gene Co-expression Modules Driving Pathway Dysregulation in Alzheimer's Disease.bioRxiv : the preprint server for biology · 2024Article
- Oxygen-Glucose Deprivation Increases NR4A1 Expression and Promotes Its Extranuclear Translocation in Mouse Astrocytes.Brain sciences · 2024Article
- Aberrant Neurovascular Coupling in Diabetic Retinopathy Using Arterial Spin Labeling (ASL) and Functional Magnetic Resonance Imaging (fMRI) methods.Diabetes, metabolic syndrome and obesity : targets and therapy · 2024Article
- Differential G Protein-Coupled Estrogen Receptor-1 Regulation of Counter-Regulatory Transmitter Marker and 5'-AMP-Activated Protein Kinase Expression in Ventrolateral versus Dorsomedial Ventromedial Hypothalamic Nucleus.Neuroendocrinology · 2024Article
82 more citing papers are in PubMed but not listed here.
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Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dynamic adjustments to neuronal energy supply in response to synaptic activity are critical for neuronal function. Glial cells known as astrocytes have processes that ensheath most central synapses and express G-protein-coupled neurotransmitter receptors and transporters that respond to neuronal activity. Astrocytes also release substrates for neuronal oxidative phosphorylation and have processes that terminate on the surface of brain arterioles and can influence vascular smooth muscle tone and local blood flow. Membrane receptor or transporter-mediated effects of glutamate represent a convergence point of astrocyte influence on neuronal bioenergetics. Astrocytic glutamate uptake drives glycolysis and subsequent shuttling of lactate from astrocytes to neurons for oxidative metabolism. Astrocytes also convert synaptically reclaimed glutamate to glutamine, which is returned to neurons for glutamate salvage or oxidation. Finally, astrocytes store brain energy currency in the form of glycogen, which can be mobilized to produce lactate for neuronal oxidative phosphorylation in response to glutamatergic neurotransmission. These mechanisms couple synaptically driven astrocytic responses to glutamate with release of energy substrates back to neurons to match demand with supply. In addition, astrocytes directly influence the tone of penetrating brain arterioles in response to glutamatergic neurotransmission, coordinating dynamic regulation of local blood flow. We will describe the role of astrocytes in neurometabolic and neurovascular coupling in detail and discuss, in turn, how astrocyte dysfunction may contribute to neuronal bioenergetic deficit and neurodegeneration. Understanding the role of astrocytes as a hub for neurometabolic and neurovascular coupling mechanisms is a critical underpinning for therapeutic development in a broad range of neurodegenerative disorders characterized by chronic generalized brain ischemia and brain microvascular dysfunction.
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