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Neuroprotective Effect of Bone Marrow–Derived Mononuclear Cells Promoting Functional Recovery from Spinal Cord Injury.

Authors :
Tomoyuki Yoshihara
Masayoshi Ohta
Yutaka Itokazu
Naoya Matsumoto
Mari Dezawa
Yoshihisa Suzuki
Akihiko Taguchi
Yumi Watanabe
Yasushi Adachi
Susumu Ikehara
Hisashi Sugimoto
Chizuka Ide
Source :
Journal of Neurotrauma. Jun2007, Vol. 24 Issue 6, p1026-1036. 11p.
Publication Year :
2007

Abstract

Neural cell transplantation, a new therapeutic strategy for replacing injured neural components and obtaining functional recovery, has shown beneficial effects in animal models. Use of this strategy in human patients, however, requires that a number of serious issues be addressed, including ethics, immunorejection, and the therapeutic time window within which the procedure will be effective. Bone marrow–derived mononuclear cells (BM-MNC) are attractive for transplantation because they can be used as an autograft, can be easily collected within a short time period, and do not have to be cultured. In a rat model of spinal cord injury (SCI), we transplanted BM-MNC at 1 h after SCI at Th 8–9 by injecting them into the cerebrospinal fluid (CSF), and investigated the effect of this on neurologic function. In the acute stage of injury, we found a neuroprotective antiapoptotic effect, with an elevated concentration of hepatocyte growth factor in CSF. At 1 week after transplantation, the Basso–Beattie–Bresnahan locomotor score had increased significantly over its base-line value. In the chronic stage of injury, we observed suppressed cavity formation and functional improvement. We conclude that transplantation of BM-MNC after SCI has a remarkable neuroprotective effect in the acute stage of injury, suppressing cavity formation, and contributing to functional recovery. Our results suggest that transplantation of BM-MNC via the CSF is a potentially effective means of enhancing functional recovery after SCI in humans. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
08977151
Volume :
24
Issue :
6
Database :
Academic Search Index
Journal :
Journal of Neurotrauma
Publication Type :
Academic Journal
Accession number :
25589510
Full Text :
https://doi.org/10.1089/neu.2007.132R