Cited by 1,884Cell death mechanisms and regulationMitochondrial Function and PathologyNeuroscience and Neuropharmacology Research

Glutamate-induced neuronal death: a succession of necrosis or apoptosis depending on mitochondrial function

Open access
Ankarcrona, Maria, Dypbukt, Jeannette M., Bonfoco, Emanuela, Zhivotovsky, Boris, Orrenius, Sten, Lipton, Stuart A., Nicotera, Pierluigi·1995·Neuron

Abstract

During ischemic brain injury, glutamate accumulation leads to overstimulation of postsynaptic glutamate receptors with intracellular Ca2+ overload and neuronal cell death. Here we show that glutamate can induce either early necrosis or delayed apoptosis in cultures of cerebellar granule cells. During and shortly after exposure to glutamate, a subpopulation of neurons died by necrosis. In these cells, mitochondrial membrane potential collapsed, nuclei swelled, and intracellular debris were scattered in the incubation medium. Neurons surviving the early necrotic phase recovered mitochondrial potential and energy levels. Later, they underwent apoptosis, as shown by the formation of apoptotic nuclei and by chromatin degradation into high and low molecular weight fragments. These results suggest that mitochondrial function is a critical factor that determines the mode of neuronal death in excitotoxicity.

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Crossref · 10.1016/0896-6273(95)90186-8

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62 of 62 references verified0 citation errors · 0 not checkable

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Authors
Ankarcrona, M., Dypbukt, J. M., Bonfoco, E., Zhivotovsky, B., Orrenius, S., Lipton, S. A., & Nicotera, P.
Affiliations
  • Karolinska Institutet (SE)
  • Harvard University (US)
  • University of Konstanz (DE)
Venue
Neuron
Publisher
Elsevier BV
Published
1995-10
Volume
15
Issue
4
Pages
961-973
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1996568613
Cited by
1,884
References
62
Citations by year
2026: 9 · 2025: 13 · 2024: 22 · 2023: 21 · 2022: 17 · 2021: 30 · 2020: 39 · 2019: 34 · 2018: 36 · 2017: 46 · 2016: 47 · 2015: 45 · 2014: 63 · 2013: 47 · 2012: 62
FWCI
30.35
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Vetenskapsrådet
  • National Eye Institute (R01 EY09024, R01EY009024)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P01HD29587, P01HD029587)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
glutamate excitotoxicity, neuronal cell death, necrosis, apoptosis, mitochondrial membrane potential, mitochondrial function, cerebellar granule cells, calcium overload, glutamate receptors, ischemic brain injury, chromatin degradation, energy metabolism
MeSH terms
Animals, Cerebellum, Chromatin, DNA, Membrane Potentials, Mitochondria, Molecular Weight, Necrosis, Neurons, Rats, Sprague-Dawley, Apoptosis, Glutamic Acid, Rats

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