Cited by 49Nerve injury and regenerationSpinal Cord Injury ResearchNeurogenesis and neuroplasticity mechanisms

Induced expression of polysialic acid in the spinal cord promotes regeneration of sensory axons

Zhang, Yi, Ghadiri-Sani, Mona, Zhang, Xinyu, Richardson, Peter M., Yeh, John, Bo, Xuenong·2007·Molecular and Cellular Neuroscience

Abstract

After spinal cord injury axonal regeneration is prevented by glial scar formation. In this study we examined whether induced expression of polysialic acid (PSA) in the lesion site would render the glial scar permissive to axonal regeneration after dorsal column transection. PSA was induced by lentiviral vector-mediated expression of polysialyltransferase (LV/PST). PSA expression increased astrocyte infiltration and permitted the penetration of regenerating axons across the caudal border of the lesion and into the lesion cavity. In LV/PST-injected animals with a peripheral nerve-conditioning lesion, 20 times more axons grew into the lesion cavity than those LV/GFP-injected plus conditioning lesion, and some axons grew across the cavity and extended to the rostral cord, while in LV/GFP group most ascending axons terminated at the caudal border of the lesion. Our result suggests that induced expression of PSA can provide a favorable environment for axonal regeneration.

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Crossref · 10.1016/j.mcn.2007.02.011

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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 [547]

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Authors
Zhang, Y., Ghadiri-Sani, M., Zhang, X., Richardson, P. M., Yeh, J., & Bo, X.
Affiliations
University of London (GB)
Corresponding author
  • Zhang, Yi
  • Bo, Xuenong
Venue
Molecular and Cellular Neuroscience
Publisher
Elsevier BV
Published
2007-05
Volume
35
Issue
1
Pages
109-119
ISSN
1044-7431 (ISSN-L)
OpenAlex
W2077439657
Cited by
49
References
53
Citations by year
2026: 1 · 2023: 1 · 2021: 1 · 2020: 1 · 2018: 3 · 2017: 2 · 2016: 3 · 2015: 3 · 2014: 4 · 2013: 4 · 2012: 4
FWCI
2.79
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular and Cellular Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Spinal Cord Injury Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
polysialic acid, spinal cord injury, axon regeneration, sensory axons, glial scar, polysialyltransferase, lentiviral vectors
MeSH terms
Animals, Astrocytes, Axons, Genetic Vectors, Gliosis, Male, Nerve Regeneration, Neurons, Afferent, Sialic Acids, Sialyltransferases, Spinal Cord, Spinal Cord Injuries, Genetic Therapy, Lentivirus, Rats, Wistar, DNA, Complementary, Green Fluorescent Proteins, Rats

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