Cited by 113Stroke Rehabilitation and RecoveryNerve injury and regenerationMesenchymal stem cell research

Bone marrow stromal cells enhance inter- and intracortical axonal connections after ischemic stroke in adult rats

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Liu, Zhongwu, Li, Yi, Zhang, Zheng Gang, Cui, Xu, Cui, Yisheng, Lu, Mei, Savant-Bhonsale, Smita, Chopp, Michael·2010·Journal of Cerebral Blood Flow & Metabolism

Abstract

We investigated axonal plasticity in the bilateral motor cortices in rats after unilateral stroke and bone marrow stromal cell (BMSC) treatment. Rats were subjected to permanent right middle cerebral artery occlusion followed by intravenous administration of phosphate-buffered saline or BMSCs 1 day later. Adhesive-removal test and modified neurologic severity score were performed weekly to monitor limb functional deficit and recovery. Anterograde tracing with biotinylated dextran amine injected into the right motor cortex was used to assess axonal sprouting in the contralateral motor cortex and ipsilateral rostral forelimb area. Animals were killed 28 days after stroke. Progressive functional recovery was significantly enhanced by BMSCs. Compared with normal animals, axonal density in both contralateral motor cortex and ipsilateral rostral forelimb area significantly increased after stroke. Bone marrow stromal cells markedly enhanced such interhemispheric and intracortical connections. However, labeled transcallosal axons in the corpus callosum were not altered with either stroke or treatment. Both interhemispheric and intracortical axonal sprouting were significantly and highly correlated with behavioral outcome after stroke. This study suggests that, after stroke, cortical neurons surviving in the peri-infarct motor cortex undergo axonal sprouting to restore connections between different cerebral areas. Bone marrow stromal cells enhance axonal plasticity, which may underlie neurologic functional improvement.

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Authors
Liu, Z., Li, Y., Zhang, Z. G., Cui, X., Cui, Y., Lu, M., Savant-Bhonsale, S., & Chopp, M.
Affiliations
  • Henry Ford Health (US)
  • Department of Biostatistics and Research Epidemiology, Henry Ford Hospital, Detroit, Michigan, USA
  • Theradigm Inc., Baltimore, Maryland, USA
Corresponding author
Chopp, Michael
Venue
Journal of Cerebral Blood Flow & Metabolism
Published
2010-02-03
Volume
30
Issue
7
Pages
1288-1295
ISSN
  • 0271-678X (ISSN-L)
  • 1559-7016
OpenAlex
W1975029375
Cited by
111
References
40
Citations by year
2025: 3 · 2024: 3 · 2023: 5 · 2022: 5 · 2021: 2 · 2020: 6 · 2019: 8 · 2018: 6 · 2017: 3 · 2016: 10 · 2015: 10 · 2014: 6 · 2013: 13 · 2012: 17
FWCI
14.64
Type
journal article
Language
en
Open access
Locations
  • Journal of Cerebral Blood Flow & Metabolism (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke (P01NS42345, R01NS066041, P01NS042345)
Topics
  • Health Sciences › Medicine › Rehabilitation › Stroke Rehabilitation and Recovery
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
Keywords
mesenchymal stem cells, ischemic stroke, axonal plasticity, axonal sprouting, interhemispheric connections, intracortical connections, motor cortex, middle cerebral artery occlusion, functional recovery, corpus callosum, peri-infarct cortex, cell therapy
MeSH terms
Animals, Axons, Behavior, Animal, Bone Marrow Cells, Brain, Humans, Male, Nerve Regeneration, Neuronal Plasticity, Random Allocation, Stromal Cells, Rats, Wistar, Recovery of Function, Infarction, Middle Cerebral Artery, Stroke, Rats

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