Reference : Mesenchymal Stem Cell Graft Improves Recovery after Spinal Cord Injury in Adult Rats ...
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
http://hdl.handle.net/2268/127070
Mesenchymal Stem Cell Graft Improves Recovery after Spinal Cord Injury in Adult Rats through Neurotrophic and Pro-Angiogenic Actions.
English
Quertainmont, Renaud [> >]
Cantinieaux, Dorothée [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Neuro-anatomie >]
Botman, Olivier [> >]
SID, Sélim mailto [Centre Hospitalier Universitaire de Liège - CHU > > Frais communs médecine >]
Schoenen, Jean mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Neuro-anatomie >]
Franzen, Rachelle mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Neuro-anatomie >]
2012
PLoS ONE
7
6
e39500
Yes (verified by ORBi)
International
1932-6203
United States
[en] Numerous strategies have been managed to improve functional recovery after spinal cord injury (SCI) but an optimal strategy doesn't exist yet. Actually, it is the complexity of the injured spinal cord pathophysiology that begets the multifactorial approaches assessed to favour tissue protection, axonal regrowth and functional recovery. In this context, it appears that mesenchymal stem cells (MSCs) could take an interesting part. The aim of this study is to graft MSCs after a spinal cord compression injury in adult rat to assess their effect on functional recovery and to highlight their mechanisms of action. We found that in intravenously grafted animals, MSCs induce, as early as 1 week after the graft, an improvement of their open field and grid navigation scores compared to control animals. At the histological analysis of their dissected spinal cord, no MSCs were found within the host despite their BrdU labelling performed before the graft, whatever the delay observed: 7, 14 or 21 days. However, a cytokine array performed on spinal cord extracts 3 days after MSC graft reveals a significant increase of NGF expression in the injured tissue. Also, a significant tissue sparing effect of MSC graft was observed. Finally, we also show that MSCs promote vascularisation, as the density of blood vessels within the lesioned area was higher in grafted rats. In conclusion, we bring here some new evidences that MSCs most likely act throughout their secretions and not via their own integration/differentiation within the host tissue.
http://hdl.handle.net/2268/127070
10.1371/journal.pone.0039500

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