Transplantation of bone marrow stromal cell-derived Schwann cells promotes axonal regeneration and functional recovery after complete transection of adult rat spinal cord

Takahito Kamada, Masao Koda, Mari Dezawa, Katsunori Yoshinaga, Masayuki Hashimoto, Shuhei Koshizuka, Yutaka Nishio, Hideshige Moriya, Masashi Yamazaki

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

The aim of this study was to evaluate whether transplantation of Schwann cells derived from bone marrow stromal cells (BMSC-SCs) promotes axonal regeneration and functional recovery in completely transected spinal cord in adult rats. Bone marrow stromal cells (BMSCs) were induced to differentiate into Schwann cells in vitro. A 4-mm segment of rat spinal cord was removed completely at the T7 level. An ultra-filtration membrane tube, filled with a mixture of Matrigel (MG) and BMSC-SCs (BMSC-SC group) or Matrigel alone (MG group), was grafted into the gap. In the BMSC-SC group, the number of neurofilament- and tyrosine hydroxylase-immunoreactive nerve fibers was significantly higher compared to the MG group, although 5-hydroxytryptamine- or calcitonin gene-related peptide-immunoreactive fibers were rarely detectable in both groups. In the BMSC-SC group, significant recovery of the hindlimb function was recognized, which was abolished by retransection of the graft 6 weeks after transplantation. These results demonstrate that transplantation of BMSC-SCs promotes axonal regeneration of lesioned spinal cord, resulting in recovery of hindlimb function in rats. Transplantation of BMSC-SCs is a potentially useful treatment for spinal cord injury.

Original languageEnglish
Pages (from-to)37-45
Number of pages9
JournalJournal of Neuropathology and Experimental Neurology
Volume64
Issue number1
DOIs
Publication statusPublished - 2005 Jan

Keywords

  • Axonal regeneration
  • Bone marrow stromal cell
  • Hindlimb function
  • Schwann cell
  • Spinal cord injury

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Neurology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience

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