Cited by 78Proteoglycans and glycosaminoglycans researchNeuroscience and Neuropharmacology ResearchNeuroinflammation and Neurodegeneration Mechanisms

Occurrence of a N-terminal proteolytic fragment of neurocan, not a C-terminal half, in a perineuronal net in the adult rat cerebrum

Matsui, Fumiko, Nishizuka, Masako, Yasuda, Yoko, Aono, Sachiko, Watanabe, Eiji, Oohira, Atsuhiko·1998·Brain Research

Abstract

Neurocan is a nervous tissue-unique chondroitin sulfate proteoglycan (CSPG) whose expression and proteolytic cleavage are developmentally regulated. In the adult rat brain, neurocan is completely cleaved into some proteoglycan fragments including the C-terminal half known as neurocan-C and a N-terminal fragment with a 130 kDa core glycoprotein (neurocan-130). We describe here the differential distribution of these two neurocan-derived CSPGs in the adult rat cerebrum and the occurrence of neurocan-130 as a new member of a perineuronal net-constituting molecule. At the light microscopic level, neurocan-130 exhibited pericellular localization around a subset of neurons in addition to diffuse distribution in the neuropil. In contrast, neurocan-C was distributed only diffusely in the neuropil. Double staining with anti-neurocan-130 and anti-synaptophysin antibodies suggested that neurocan-130 was localized in the vicinity of the synapses, but not at the synapses. Immunoelectron microscopy showed that neurocan-130 was mainly localized in the cytoplasm of glial cell processes, the so-called glial perineuronal net, encompassing the cell bodies of certain neurons. The presence of neurocan-130 in a limited number of glial cells may reflect some functional heterogeneity of the glia.

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Crossref · 10.1016/s0006-8993(98)00009-2

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Authors
Matsui, F., Nishizuka, M., Yasuda, Y., Aono, S., Watanabe, E., & Oohira, A.
Affiliations
  • Institute for Developmental Research (JP)
  • Juntendo University (JP)
  • National Institute for Basic Biology (JP)
Corresponding author
Matsui, Fumiko
Venue
Brain Research
Publisher
Elsevier BV
Published
1998-04
Volume
790
Issue
1-2
Pages
45-51
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2001796760
Cited by
78
References
23
Citations by year
2025: 1 · 2024: 2 · 2022: 4 · 2020: 3 · 2018: 4 · 2017: 1 · 2015: 3 · 2014: 2 · 2013: 3 · 2012: 4
FWCI
2.16
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministry of Education, Culture, Sports, Science and Technology
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
neurocan, proteolytic cleavage, chondroitin sulfate proteoglycans, perineuronal nets, cerebrum, synaptophysin, glial cells, adult rat brain
MeSH terms
Age Factors, Animals, Brain Chemistry, Cerebral Cortex, Hippocampus, Nerve Tissue Proteins, Neuroglia, Neurons, Peptide Fragments, Chondroitin Sulfate Proteoglycans, Rabbits, Microscopy, Immunoelectron, Synaptophysin, Neostriatum, Rats, Sprague-Dawley, Neuropil, Lectins, C-Type, Rats, Neurocan

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