Transplantation of schwann cells inside PVDF-TrFE conduits to bridge transected rat spinal cord stumps to promote axon regeneration across the gap

Yee Shuan Lee, Siliang Wu, Treena Livingston Arinzeh, Mary Bartlett Bunge

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Among various models for spinal cord injury in rats, the contusion model is the most often used because it is the most common type of human spinal cord injury. The complete transection model, although not as clinically relevant as the contusion model, is the most rigorous method to evaluate axon regeneration. In the contusion model, it is difficult to distinguish regenerated from sprouted or spared axons due to the presence of remaining tissue post injury. In the complete transection model, a bridging method is necessary to fill the gap and create continuity from the rostral to the caudal stumps in order to evaluate the effectiveness of the treatments. A reliable bridging surgery is essential to test outcome measures by reducing the variability due to the surgical method. The protocols described here are used to prepare Schwann cells (SCs) and conduits prior to transplantation, complete transection of the spinal cord at thoracic level 8 (T8), insert the conduit, and transplant SCs into the conduit. This approach also uses in situ gelling of an injectable basement membrane matrix with SC transplantation that allows improved axon growth across the rostral and caudal interfaces with the host tissue.

Original languageEnglish (US)
Article numbere56077
JournalJournal of Visualized Experiments
Volume2017
Issue number129
DOIs
StatePublished - Nov 3 2017

Keywords

  • Complete transection
  • Conduit
  • Electrospinning
  • Issue 129
  • Medicine
  • PVDF-TrFE
  • Piezoelectric
  • Schwann cells
  • Spinal cord injury

ASJC Scopus subject areas

  • Neuroscience(all)
  • Chemical Engineering(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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