Cited by 1,846Neuroscience and Neuropharmacology ResearchConnexins and lens biologyNeuroinflammation and Neurodegeneration Mechanisms

Glutamate Induces Calcium Waves in Cultured Astrocytes: Long-Range Glial Signaling

Cornell-Bell, Ann H., Finkbeiner, Steven M., Cooper, Mark S., Smith, Stephen J.·1990·Science

Abstract

The finding that astrocytes possess glutamate-sensitive ion channels hinted at a previously unrecognized signaling role for these cells. Now it is reported that cultured hippocampal astrocytes can respond to glutamate with a prompt and oscillatory elevation of cytoplasmic free calcium, visible through use of the fluorescent calcium indicator fluo-3. Two types of glutamate receptor—one preferring quisqualate and releasing calcium from intracellular stores and the other preferring kainate and promoting surface-membrane calcium influx—appear to be involved. Moreover, glutamate-induced increases in cytoplasmic free calcium frequently propagate as waves within the cytoplasm of individual astrocytes and between adjacent astrocytes in confluent cultures. These propagating waves of calcium suggest that networks of astrocytes may constitute a long-range signaling system within the brain.

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Crossref · 10.1126/science.1967852

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33 of 33 references verified0 citation errors · 0 not checkable

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  • Astrocytes reside in close proximity to neuronal synapses and express glutamate receptors that regulate Ca2+ influx to influence ATP signaling.

    “Astrocytes reside in close proximity to neuronal synapses and express glutamate receptors that regulate CA 2+ influx (Cornell-Bell et al, 1990) to influence ATP signaling (Cotrina et al, 2000).”

    From Repeated Social Defeat, Neuroinflammation, and Behavior: Monocytes Carry the Signal (2017) · cites this paper as Cornell-Bell et al, 1990

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Authors
Cornell-Bell, A. H., Finkbeiner, S. M., Cooper, M. S., & Smith, S. J.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Science
Published
1990-01-26
Volume
247
Issue
4941
Pages
470-473
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2090971379
Cited by
1,846
References
33
Citations by year
2026: 21 · 2025: 34 · 2024: 37 · 2023: 43 · 2022: 30 · 2021: 73 · 2020: 39 · 2019: 55 · 2018: 41 · 2017: 38 · 2016: 65 · 2015: 65 · 2014: 50 · 2013: 52 · 2012: 63
FWCI
30.14
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (2r01ns016671-07a1, 5r01ns012961-22)
  • National Institute of General Medical Sciences (GM07205, T32GM007205)
  • National Institute of Neurological Disorders and Stroke (NS16671-09, NS-12961-14)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Connexins and lens biology
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
glutamate, calcium waves, astrocytes, hippocampal astrocytes, glutamate receptors, kainate receptors, quisqualate receptors, intracellular calcium stores, calcium influx, astrocyte networks
MeSH terms
Aniline Compounds, Astrocytes, Calcium, Cells, Cultured, Cytoplasm, Fluorescent Dyes, Glutamates, Hippocampus, Intercellular Junctions, Kainic Acid, Oxadiazoles, Periodicity, Xanthenes, Quisqualic Acid, Receptors, Glutamate, Receptors, Neurotransmitter, Glutamic Acid

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