Cited by 132Proteoglycans and glycosaminoglycans researchNeuroscience and Neuropharmacology ResearchNeurogenesis and neuroplasticity mechanisms

Cortical areas are revealed by distribution patterns of proteoglycan components and parvalbumin in the Mongolian gerbil and rat

Brückner, Gert, Seeger, Gudrun, Brauer, Kurt, Härtig, Wolfgang, Kacza, Johannes, Bigl, Volker·1994·Brain Research

Abstract

Cortical areas in rodents have been basically characterized by its cytoarchitecture, connectivity or by physiological parameters. In this study we show that they are revealed by distribution patterns of proteoglycans and parvalbumin-immunoreactivity. Brains of young adult Mongolian gerbils (Meriones unguiculatus) and Wistar rats were cut into series of transversal sections. Proteoglycan components were detected using the N-acetylgalactosamine binding Wisteria floribunda agglutinin (WFA) and antibodies against chondroitin sulphate proteoglycan (CSPG). Differences between cortical areas were found to exist with regard to the occurrence and the density of perineuronal nets, but were also expressed in varying staining intensities for WFA and CSPG of the neuropil. Primary neocortical areas (somatosensory, auditory, visual cortex) were characterized by an intense neuropil staining in layer IV and the upper part of layer VI. Using the same methods strong labelling was also typical of the neuropil in the retrosplenial cortex, of layer Ia in the prepiriform cortex and the hippocampal CA3 field. In tangential sections cut from gerbil cortical hemispheres, some of the heavily lectin-stained cortical areas were sharply delineated from adjacent faintly labelled regions, others showed more diffuse borders. In the rat, the area-specific staining for WFA was less clearly expressed than in the gerbil. Immunocytochemistry of the calcium-binding protein parvalbumin in alternate sections showed labelling patterns of neuropil which resembled those of WFA-binding and CSPG-immunoreactivity in the entire neocortex and hippocampus. From these results it can be concluded that functional peculiarities of cortical fields may not only be determined by neuronal network parameters but also by the spatial arrangement of extracellular matrix proteoglycans.

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Crossref · 10.1016/s0006-8993(09)90012-9

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Authors
Brückner, G., Seeger, G., Brauer, K., Härtig, W., Kacza, J., & Bigl, V.
Affiliations
Leipzig University (DE)
Corresponding author
Brückner, Gert
Venue
Brain Research
Publisher
Elsevier BV
Published
1994-09
Volume
658
Issue
1-2
Pages
67-86
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2002867031
Cited by
132
References
86
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2021: 2 · 2020: 3 · 2019: 1 · 2018: 4 · 2017: 5 · 2016: 5 · 2015: 4 · 2014: 6 · 2013: 4 · 2012: 3
FWCI
2.07
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
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 › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
cortical regions, proteoglycans, parvalbumin, chondroitin sulfate proteoglycans, perineuronal nets, Wisteria floribunda agglutinin, extracellular matrix, neocortex, hippocampus, somatosensory cortex, auditory cortex, visual cortex, retrosplenial cortex, piriform cortex, Mongolian gerbil, rats
MeSH terms
Animals, Cerebral Cortex, Gerbillinae, Immunoenzyme Techniques, Parvalbumins, Chondroitin Sulfate Proteoglycans, Species Specificity, Signal Transduction, Rats, Wistar, Receptors, N-Acetylglucosamine, Lectins, Plant Lectins, Rats

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