Cited by 760Lipid metabolism and biosynthesisNeuroscience and Neuropharmacology ResearchCancer, Lipids, and Metabolism

Neuron-Astrocyte Metabolic Coupling Protects against Activity-Induced Fatty Acid Toxicity

Open access
Ioannou, Maria S., Jackson, Jesse, Sheu, Shu-Hsien, Chang, Chi-Lun, Weigel, Aubrey V., Liu, Hui, Pasolli, H. Amalia, Xu, C. Shan +5 more·2019·Cell

Published version of a preprint

Abstract

Metabolic coordination between neurons and astrocytes is critical for the health of the brain. However, neuron-astrocyte coupling of lipid metabolism, particularly in response to neural activity, remains largely uncharacterized. Here, we demonstrate that toxic fatty acids (FAs) produced in hyperactive neurons are transferred to astrocytic lipid droplets by ApoE-positive lipid particles. Astrocytes consume the FAs stored in lipid droplets via mitochondrial β-oxidation in response to neuronal activity and turn on a detoxification gene expression program. Our findings reveal that FA metabolism is coupled in neurons and astrocytes to protect neurons from FA toxicity during periods of enhanced activity. This coordinated mechanism for metabolizing FAs could underlie both homeostasis and a variety of disease states of the brain.

Integrity signals

Registry

Crossref · 10.1016/j.cell.2019.04.001

Cites

69 of 69 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Hyperactive neurons can release APOE-associated fatty acids that are taken up by astrocytes and buffer lipotoxic stress.

    “cell culture models have demonstrated that hyperactive neurons can release APOE-associated fatty acids which are taken up by astrocytes and buffer lipotoxic stress35.”
  • Injured neurons and oligodendrocytes have a low capacity for consuming FFAs and sequestering them into lipid droplets, making them more vulnerable to lipid-induced cytotoxicity in chronic inflammation.

    “Injured neurons and oligodendrocytes have a low capacity for consuming FFAs and sequestering them into LDs61, making them more vulnerable to lipid-induced cytotoxicity in chronic inflammation62,63.”
  • ApoE-mediated transport of lipids from neurons to glia is neuroprotective in flies and mammalian cells.

    “ApoE-mediated transport of lipids from neurons to glia in flies61 and mammalian cells is neuroprotective62.”
  • Reactive astrocytes can upregulate VLCFA-rich phosphatidylcholines, which drive the death of neurons and oligodendrocytes, probably via lipoparticle secretion.

    “Reactive astrocytes can upregulate VLCFA-rich phosphatidylcholines, which drive the death of neurons and OLs, probably via lipoparticle secretion [415].”

    From Revisiting the Pathogenesis of X-Linked Adrenoleukodystrophy (2025) · cites this paper as [415]

  • Neuron-astrocyte metabolic coupling mediated by apoE plays an essential role in preventing activity-induced lipotoxicity in neurons.

    “This neuron–astrocyte metabolic coupling, mediated by apoE, plays an essential role in preventing activity‐induced lipotoxicity in neurons. 1”

Cites

Flagged first, then by citations

3 of the 72 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Ioannou, M. S., Jackson, J., Sheu, S.-H., Chang, C.-L., Weigel, A. V., Liu, H., Pasolli, H. A., Xu, C. S., Pang, S., Matthies, D., Hess, H. F., Lippincott-Schwartz, J., & Liu, Z.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of Alberta (CA)
Corresponding author
  • Ioannou, Maria S.
  • Liu, Zhe
Venue
Cell
Publisher
Elsevier BV
Published
2019-05
Volume
177
Issue
6
Pages
1522-1535.e14
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2946373463
Cited by
760
References
72
Citations by year
2026: 129 · 2025: 150 · 2024: 133 · 2023: 117 · 2022: 74 · 2021: 92 · 2020: 47 · 2019: 15 · 2018: 1
FWCI
23.82
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
Howard Hughes Medical Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
fatty acid toxicity, lipid droplets, apolipoprotein E, mitochondrial beta-oxidation, fatty acid metabolism, neuronal hyperactivity, astrocytes, lipid metabolism, neuroprotection
MeSH terms
Animals, Apolipoproteins E, Astrocytes, Brain, Fatty Acids, Homeostasis, Male, Mice, Inbred C57BL, Mitochondria, Neurons, Oxidation-Reduction, Rats, Sprague-Dawley, Mice, Knockout, Lipid Metabolism, Mice, Rats, Lipid Droplets

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review