Cited by 368Neuroscience and Neuropharmacology ResearchProteoglycans and glycosaminoglycans researchNeurogenesis and neuroplasticity mechanisms

The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.

Activity‐dependent formation and functions of chondroitin sulfate‐rich extracellular matrix of perineuronal nets

Dityatev, Alexander, Brückner, Gert, Dityateva, Galina, Grosche, Jens, Kleene, Ralf, Schachner, Melitta·2007·Developmental Neurobiology

Abstract

Extracellular matrix molecules—including chondroitin sulfate proteoglycans, hyaluronan, and tenascin‐R—are enriched in perineuronal nets (PNs) associated with subsets of neurons in the brain and spinal cord. In the present study, we show that similar cell type‐dependent extracellular matrix aggregates are formed in dissociated cell cultures prepared from early postnatal mouse hippocampus. Starting from the 5th day in culture, accumulations of lattice‐like extracellular structures labeled with Wisteria floribunda agglutinin were detected at the cell surface of parvalbumin‐expressing interneurons, which developed after 2–3 weeks into conspicuous PNs localized around synaptic contacts at somata and proximal dendrites, as well as around axon initial segments. Physiological recording and intracellular labeling of PN‐expressing neurons revealed that these are large fast‐spiking interneurons with morphological characteristics of basket cells. To study mechanisms of activity‐dependent formation of PNs, we performed pharmacological analysis and found that blockade of action potentials, transmitter release, Ca 2+ permeable AMPA subtype of glutamate receptors or L‐type Ca 2+ voltage‐gated channels strongly decreased the extracellular accumulation of PN components in cultured neurons. Thus, we suggest that Ca 2+ influx via AMPA receptors and L‐type channels is necessary for activity‐dependent formation of PNs. To study functions of chondroitin sulfate‐rich PNs, we treated cultures with chondroitinase ABC that resulted in a prominent reduction of several major PN components. Removal of PNs did not affect the number and distribution of perisomatic GABAergic contacts but increased the excitability of interneurons in cultures, implicating the extracellular matrix of PNs in regulation of interneuronal activity. © 2007 Wiley Periodicals, Inc. Develop Neurobiol, 2007

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Crossref · 10.1002/dneu.20361

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Metadata

Authors
Dityatev, A., Brückner, G., Dityateva, G., Grosche, J., Kleene, R., & Schachner, M.
Affiliations
  • Leipzig University (DE)
  • University Medical Center Hamburg-Eppendorf (DE)
Corresponding author
Schachner, Melitta
Venue
Developmental Neurobiology
Publisher
Wiley
Published
2007-02-09
Volume
67
Issue
5
Pages
570-588
ISSN
  • 1932-8451 (ISSN-L)
  • 1932-846X
OpenAlex
W2106489369
Cited by
365
References
59
Citations by year
2026: 13 · 2025: 27 · 2024: 21 · 2023: 20 · 2022: 24 · 2021: 24 · 2020: 25 · 2019: 29 · 2018: 27 · 2017: 24 · 2016: 19 · 2015: 19 · 2014: 18 · 2013: 13 · 2012: 13
FWCI
4.89
Type
journal article
Language
en
Open access
closed
Locations
  • Developmental Neurobiology (publishedVersion)
  • PubMed (publishedVersion)
  • Rutgers University Community Repository (Rutgers University) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
perineuronal nets, chondroitin sulfate proteoglycans, extracellular matrix, parvalbumin interneurons, basket cells, fast-spiking interneurons, AMPA receptors, L-type calcium channels, chondroitinase ABC, GABAergic synapses, interneuron excitability, hippocampus, postnatal development
MeSH terms
Animals, Cell Count, Cells, Cultured, Chondroitin Sulfates, Electrophysiology, Extracellular Matrix, Hippocampus, Immunohistochemistry, Interneurons, Mice, Inbred C57BL, Proteoglycans, Synapses, Blotting, Western, Receptors, GABA, Chondroitin ABC Lyase, Satellite Cells, Perineuronal, Mice

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