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Transplantation of human glial-restricted neural precursors into injured spinal cord promotes functional and sensory recovery without causing allodynia.
MedLine Citation:
PMID:  20735167     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Abstract Background aims. Traumatic injuries of the central nervous system cause damage and degeneration of specific cell populations with subsequent functional loss. Cell transplantation is a strategy to treat such injuries by replacing lost or damaged cell populations. Many kinds of cells are considered candidates for intraspinal transplantation. Human neural precursor cells (hNPC) derived from post-mortem fetal tissue are easy to isolate and expand, and are capable of producing large numbers of neuronal and glial cells. After transplantation into the nervous system, hNPC produce mature neural phenotypes and permit functional improvement in some models of neurodegenerative disease. In this study, we aimed to elucidate the therapeutic effect of different neuronal and glial progenitor populations of hNPC on locomotor and sensory functions of spinal cord-injured (SCI) rats. Methods. Different populations of progenitor cells were obtained from hNPC by cell sorting and neural induction, resulting in cell cultures that were NCAM(+) A2B5(+), NCAM(+) A2B5(-) or A2B5(+) NG2(+). These different cell populations were then tested for efficacy in repair of the injured spinal cord by transplantation into rats with SCI. Results. The A2B5(+) NG2(+) population of hNPC significantly improved locomotor and sensory (hindlimb) functional recovery of SCI rats. Importantly, no abnormal pain responses were observed in the forelimbs following transplantation. Conclusions. This treatment approach can improve functional recovery after SCI without causing allodynia. Further studies will be conducted to investigate the ability of A2B5(+) NG2(+) cells to survive, differentiate and integrate in the injured spinal cord.
Authors:
Arshak R Alexanian; Clive N Svendsen; Maria J Crowe; Shekar N Kurpad
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Publication Detail:
Type:  Journal Article     Date:  2010-08-24
Journal Detail:
Title:  Cytotherapy     Volume:  13     ISSN:  1477-2566     ISO Abbreviation:  Cytotherapy     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2010-12-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100895309     Medline TA:  Cytotherapy     Country:  England    
Other Details:
Languages:  eng     Pagination:  61-8     Citation Subset:  IM    
Affiliation:
Neuroscience Research Laboratories, Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
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