Cited by 247Proteoglycans and glycosaminoglycans researchNeurogenesis and neuroplasticity mechanismsCell Adhesion Molecules Research

Mice Deficient for Tenascin-R Display Alterations of the Extracellular Matrix and Decreased Axonal Conduction Velocities in the CNS

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Weber, Philipp, Bartsch, Udo, Rasband, Matthew N., Czaniera, Reiner, Lang, Yolande, Bluethmann, Horst, Margolis, Richard U., Levinson, S. Rock +3 more·1999·The Journal of Neuroscience

Abstract

Tenascin-R (TN-R), an extracellular matrix glycoprotein of the CNS, localizes to nodes of Ranvier and perineuronal nets and interacts in vitro with other extracellular matrix components and recognition molecules of the immunoglobulin superfamily. To characterize the functional roles of TN-R in vivo, we have generated mice deficient for TN-R by homologous recombination using embryonic stem cells. TN-R-deficient mice are viable and fertile. The anatomy of all major brain areas and the formation and structure of myelin appear normal. However, immunostaining for the chondroitin sulfate proteoglycan phosphacan, a high-affinity ligand for TN-R, is weak and diffuse in the mutant when compared with wild-type mice. Compound action potential recordings from optic nerves of mutant mice show a significant decrease in conduction velocity as compared with controls. However, at nodes of Ranvier there is no apparent change in expression and distribution of Na+channels, which are thought to bind to TN-R via their β2 subunit. The distribution of carbohydrate epitopes of perineuronal nets recognized by the lectin Wisteria floribunda or antibodies to the HNK-1 carbohydrate on somata and dendrites of cortical and hippocampal interneurons is abnormal. These observations indicate an essential role for TN-R in the formation of perineuronal nets and in normal conduction velocity of optic nerve.

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Crossref · 10.1523/jneurosci.19-11-04245.1999

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  1. Peters A, Palay SL, Webster H D (1991) The fine structure of the ner- vous system, p 235. New York: Oxford.

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Authors
Weber, P., Bartsch, U., Rasband, M. N., Czaniera, R., Lang, Y., Bluethmann, H., Margolis, R. U., Levinson, S. R., Shrager, P., Montag, D., & Schachner, M.
Affiliations
  • ETH Zurich (CH)
  • Universität Hamburg (DE)
  • University of Rochester Medicine (US)
  • F. Hoffmann-La Roche AG (CH)
  • NYU Langone Health (US)
  • University of Colorado Denver (US)
Venue
The Journal of Neuroscience
Published
1999-06-01
Volume
19
Issue
11
Pages
4245-4262
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2124266106
Cited by
247
References
93
Citations by year
2026: 3 · 2025: 5 · 2024: 3 · 2023: 1 · 2022: 4 · 2021: 11 · 2020: 9 · 2019: 7 · 2018: 5 · 2017: 14 · 2016: 6 · 2015: 9 · 2014: 9 · 2013: 6 · 2012: 9
FWCI
5.67
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)
  • Rutgers University Community Repository (Rutgers University) (submittedVersion)
Funders
  • Multiple Sclerosis Society
  • Deutsche Forschungsgemeinschaft
  • Schweizerische Multiple Sklerose Gesellschaft
  • National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Immunology and Allergy › Cell Adhesion Molecules Research
Keywords
tenascin-R, extracellular matrix, perineuronal nets, nodes of Ranvier, axonal conduction velocity, optic nerve, phosphacan, chondroitin sulfate proteoglycans, interneurons
MeSH terms
Animals, Axons, Cells, Cultured, Central Nervous System, Microscopy, Electron, Nerve Net, Nerve Tissue Proteins, Neural Conduction, Optic Nerve, Ranvier's Nodes, Stem Cells, Extracellular Matrix Proteins, Mice, Knockout, Myelin-Associated Glycoprotein, Tenascin, Mice

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