Cited by 150Nerve injury and regenerationNeurogenesis and neuroplasticity mechanismsSpinal Cord Injury Research

Use of polysialic acid in repair of the central nervous system

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El Maarouf, Abderrahman, Petridis, Athanasios K., Rutishauser, Urs·2006·Proceedings of the National Academy of Sciences

Abstract

Polysialic acid (PSA), a large cell-surface carbohydrate that regulates cell interactions, is used during vertebrate development to promote precursor cell migration and axon path-finding. The induction of PSA expression in damaged adult CNS tissues could help them to rebuild by creating conditions permissive for architectural remodeling. This possibility has been explored in two contexts, the regeneration of axons and the recruitment of endogenous neural precursors to a lesion. Glial scars that form at CNS injury sites block axon regeneration. It has been found that transfection of scar astrocytes by a viral vector encoding polysialyltransferase leads to sustained expression of high levels of PSA. With this treatment, a substantial portion of severed corticospinal tract axon processes were able to grow through a spinal injury site. In the studies of precursor cell migration to a cortical lesion, it was found that induced PSA expression in a path extending from the subventricular zone to a lesion near the cortical surface increased recruitment of BrdU/nestin-positive cells along the path and into the injury site. These displaced precursors were able to differentiate in a regionally appropriate manner. These findings suggest that induced PSA expression can be used as a strategy for promoting tissue repair involving both replacement of cells and rebuilding of neural connections.

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  • The plasticity resulting from polysialic acid expression appears to be important for neuronal migration and for reorganization following injury.

    “The ' plasticity ' resulting from polysialic acid expression appears to be important for neuronal migration as well as reorganization following injury (546 -554).”

    From Biological roles of glycans (2017) · cites this paper as [546]

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Research works printed but not linked: 3

  1. [24]El Maarouf A, Rutishauser U. In: Neuroglycobiology. Fukuda M, Rutishauser U, Schnaar RL, editors. London: Oxford Univ Press; 2005. p. 39. [Google Scholar]
  2. [30]Aubert I, Ridet JL, Schachner M, Rougon G, Gage FH. J Comp Neurol. 1998;399:1–19. [PubMed] [Google Scholar]
  3. [31]Dusart I, Morel MP, Wehrle R, Sotelo C. J Comp Neurol. 1999;408:399–418. [PubMed] [Google Scholar]

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Authors
El Maarouf, A., Petridis, A. K., & Rutishauser, U.
Affiliations
  • Laboratory of Cellular and Developmental Neuroscience, Department of Cell Biology, Memorial Sloan–Kettering Cancer Center, 1275 York Avenue, New York, NY 10021
  • Memorial Sloan Kettering Cancer Center (US)
Corresponding author
Rutishauser, Urs
Venue
Proceedings of the National Academy of Sciences
Published
2006-11-07
Volume
103
Issue
45
Pages
16989-16994
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2054293861
Cited by
150
References
48
Citations by year
2026: 3 · 2025: 1 · 2024: 5 · 2023: 3 · 2022: 5 · 2021: 4 · 2020: 5 · 2019: 8 · 2018: 6 · 2017: 3 · 2016: 12 · 2015: 7 · 2014: 10 · 2013: 5 · 2012: 14
FWCI
4.93
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Memorial Sloan-Kettering Cancer Center
  • National Cancer Institute
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Spinal Cord Injury Research
Keywords
polysialic acid, central nervous system repair, axon regeneration, corticospinal tract, spinal cord injury, glial scar, polysialyltransferase, subventricular zone, cortical lesions, nestin, bromodeoxyuridine, neural tissue regeneration
MeSH terms
Animals, Astrocytes, Axons, Brain Injuries, Cell Movement, Central Nervous System, Male, Mice, Transgenic, Nerve Regeneration, Recombinant Proteins, Sialic Acids, Sialyltransferases, Stem Cells, Transfection, Mice

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