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Rescue of injured motoneurones by grafted neuroectodermal stem cells: effect of the location of graft.
Restor Neurol Neurosci. 2013; 31(3):263-74.RN

Abstract

PURPOSE

Avulsion of one or more ventral roots from the spinal cord leads to the death of the majority of affected motoneurons. In this study we investigated whether immortalized clonal neuroectodermal stem cells applied to the injured cord in various ways impart neuroprotection on motoneurons otherwise destined to die.

METHODS

The lumbar 4 (L4) ventral root of Sprague-Dawley rats was avulsed and reimplanted ventrolaterally into the injured cord. Clonal neuroectodermal murine stem cells (NE-GFP-4C) were placed in fibrin clot around the reimplanted root, were injected immediately following avulsion into the reimplanted ventral root or directly into the L4 segment. Three months after the primary surgery the L4 motoneuron pool was retrogradely labelled with Fast blue and the numbers of reinnervating motoneurons were determined. Functional recovery was tested biweekly through the use of the CatWalk automated gait analysis system.

RESULTS

Transplantation of neuroectodermal stem cells into the reimplanted root or into the L4 spinal segment resulted in similarly extensive regeneration of the motoneurons (671 ± 26 and 711 ± 14 L4 motoneurons, respectively). In these groups significant functional recovery was achieved. The negative controls and animals with periradicular stem cell treatment showed poor motor recovery and reinnervation (42 ± 10 and 65 ± 2.5, respectively).

CONCLUSION

This study provides evidence that neuroectodermal stem cell transplantation into the reimplanted ventral root induces as successful regeneration of injured motoneurons as stem cells grafted into the spinal cord.

Authors+Show Affiliations

Austrian Cluster for Tissue Regeneration and Ludwig Boltzmann Institute for Experimental and Clinical Traumatology at the Research Centre for Traumatology of the Austrian Workers' Compensation Board (AUVA), Vienna, Austria.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23478343

Citation

Pajenda, Gholam, et al. "Rescue of Injured Motoneurones By Grafted Neuroectodermal Stem Cells: Effect of the Location of Graft." Restorative Neurology and Neuroscience, vol. 31, no. 3, 2013, pp. 263-74.
Pajenda G, Pajer K, Márton G, et al. Rescue of injured motoneurones by grafted neuroectodermal stem cells: effect of the location of graft. Restor Neurol Neurosci. 2013;31(3):263-74.
Pajenda, G., Pajer, K., Márton, G., Hegyi, P., Redl, H., & Nógrádi, A. (2013). Rescue of injured motoneurones by grafted neuroectodermal stem cells: effect of the location of graft. Restorative Neurology and Neuroscience, 31(3), 263-74. https://doi.org/10.3233/RNN-120294
Pajenda G, et al. Rescue of Injured Motoneurones By Grafted Neuroectodermal Stem Cells: Effect of the Location of Graft. Restor Neurol Neurosci. 2013;31(3):263-74. PubMed PMID: 23478343.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rescue of injured motoneurones by grafted neuroectodermal stem cells: effect of the location of graft. AU - Pajenda,Gholam, AU - Pajer,Krisztián, AU - Márton,Gábor, AU - Hegyi,Péter, AU - Redl,Heinz, AU - Nógrádi,Antal, PY - 2013/3/13/entrez PY - 2013/3/13/pubmed PY - 2013/12/16/medline SP - 263 EP - 74 JF - Restorative neurology and neuroscience JO - Restor. Neurol. Neurosci. VL - 31 IS - 3 N2 - PURPOSE: Avulsion of one or more ventral roots from the spinal cord leads to the death of the majority of affected motoneurons. In this study we investigated whether immortalized clonal neuroectodermal stem cells applied to the injured cord in various ways impart neuroprotection on motoneurons otherwise destined to die. METHODS: The lumbar 4 (L4) ventral root of Sprague-Dawley rats was avulsed and reimplanted ventrolaterally into the injured cord. Clonal neuroectodermal murine stem cells (NE-GFP-4C) were placed in fibrin clot around the reimplanted root, were injected immediately following avulsion into the reimplanted ventral root or directly into the L4 segment. Three months after the primary surgery the L4 motoneuron pool was retrogradely labelled with Fast blue and the numbers of reinnervating motoneurons were determined. Functional recovery was tested biweekly through the use of the CatWalk automated gait analysis system. RESULTS: Transplantation of neuroectodermal stem cells into the reimplanted root or into the L4 spinal segment resulted in similarly extensive regeneration of the motoneurons (671 ± 26 and 711 ± 14 L4 motoneurons, respectively). In these groups significant functional recovery was achieved. The negative controls and animals with periradicular stem cell treatment showed poor motor recovery and reinnervation (42 ± 10 and 65 ± 2.5, respectively). CONCLUSION: This study provides evidence that neuroectodermal stem cell transplantation into the reimplanted ventral root induces as successful regeneration of injured motoneurons as stem cells grafted into the spinal cord. SN - 1878-3627 UR - https://www.unboundmedicine.com/medline/citation/23478343/Rescue_of_injured_motoneurones_by_grafted_neuroectodermal_stem_cells:_effect_of_the_location_of_graft_ L2 - https://content.iospress.com/openurl?genre=article&id=doi:10.3233/RNN-120294 DB - PRIME DP - Unbound Medicine ER -