Cited by 415Neuroscience and Neuropharmacology ResearchAmino Acid Enzymes and MetabolismNeuroinflammation and Neurodegeneration Mechanisms

d-Serine as a Neuromodulator: Regional and Developmental Localizations in Rat Brain Glia Resemble NMDA Receptors

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Schell, Michael J., Brady Jr., Roscoe O., Molliver, Mark E., Snyder, Solomon H.·1997·The Journal of Neuroscience

Abstract

d-Serine is localized in mammalian brain to a discrete population of glial cells near NMDA receptors, suggesting that d-serine is an endogenous agonist of the receptor-associated glycine site. To explore this possibility, we have compared the immunohistochemical localizations of d-serine, glycine, and NMDA receptors in rat brain. In the telencephalon,d-serine is concentrated in protoplasmic astrocytes, which are abundant in neuropil in close vicinity to NMDA receptor 2A/B subunits. Ultrastructural examination of the CA1 region of hippocampus reveals d-serine in the cytosolic matrix of astrocytes that ensheath neurons and blood vessels, whereas NR2A/B is concentrated in dendritic spines. By contrast, glycine immunoreactivity in telencephalon is the lowest in brain. During postnatal week 2,d-serine levels in cerebellum are comparable to those in adult cerebral cortex but fall to undetectable levels by day 26. During week 2, we observe parallel ontogeny of d-serine in Bergmann glia and NR2A/B in Purkinje cells, suggesting a role for astrocytic d-serine in NMDA receptor-mediated synaptogenesis.d-Serine in the radial processes of Bergmann glia is also well positioned to regulate NMDA receptor-dependent granule cell migration. In the inner granule layer,d-serine is found transiently in protoplasmic astrocytes surrounding glomeruli, where it could regulate development of the mossy fiber/granule cell synapse.d-Serine seems to be the endogenous ligand of glycine sites in the telencephalon and developing cerebellum, whereas glycine predominates in the adult cerebellum, olfactory bulb, and hindbrain.

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Crossref · 10.1523/jneurosci.17-05-01604.1997

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  1. Palay SL, Chan-Palay V (1974) Cerebellar cortex: cytology and organi- zation. New York: Springer.

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Authors
Schell, M. J., Brady Jr., R. O., Molliver, M. E., & Snyder, S. H.
Affiliations
Johns Hopkins University (US)
Venue
The Journal of Neuroscience
Published
1997-03-01
Volume
17
Issue
5
Pages
1604-1615
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1793612468
Cited by
415
References
80
Citations by year
2026: 1 · 2025: 6 · 2024: 8 · 2023: 13 · 2022: 11 · 2021: 14 · 2020: 12 · 2019: 12 · 2018: 12 · 2017: 8 · 2016: 14 · 2015: 12 · 2014: 18 · 2013: 17 · 2012: 15
FWCI
4.46
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01da004431-08)
  • U.S. Public Health Service
  • National Institute of Mental Health (R01MH018501, R37MH018501, MH-18501)
  • National Institute on Drug Abuse (DA 00074, 5RO1DA04431, K05DA000074)
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
D-serine, NMDA receptor, glycine site, neuromodulation, astrocytes, Bergmann glia, glycine, cerebellar development, hippocampal CA1, synaptogenesis, granule cell migration, mossy fiber synapses, telencephalon, postnatal development, rat brain
MeSH terms
Animals, Brain Chemistry, Cerebellum, Glycine, Hippocampus, Ligands, Models, Neurological, Neuroglia, Olfactory Bulb, Organ Specificity, Rabbits, Rhombencephalon, Serine, Stereoisomerism, Telencephalon, Receptors, N-Methyl-D-Aspartate, Rats, Sprague-Dawley, Receptors, Glycine, Neurotransmitter Agents, Rats

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