Cited by 208Mesenchymal stem cell researchStroke Rehabilitation and RecoveryNeurogenesis and neuroplasticity mechanisms

One-year follow-up after bone marrow stromal cell treatment in middle-aged female rats with stroke

Shen, Li Hong, Li, Yi, Chen, Jieli, Cui, Yisheng, Zhang, Chunling, Kapke, Alissa, Lu, Mei, Savant-Bhonsale, Smita +1 more·2007·Stroke

Abstract

Background and Purpose— We sought to evaluate the long-term effects of bone marrow stromal cell (BMSC) treatment on retired breeder rats with stroke. Methods— Female retired breeder rats were subjected to 2-hour middle cerebral artery occlusion (MCAO) followed by an injection of 2×10 6 male BMSCs (n=8) or phosphate-buffered saline (n=11) into the ipsilateral internal carotid artery at 1 day after stroke. The rats were humanely killed 1 year later. Functional tests, in situ hybridization, and histochemical and immunohistochemical staining were performed. Results— Significant recovery of neurological deficits was found in BMSC-treated rats beginning 2 weeks after cell injection compared with control animals. The beneficial effects of cell transplantation persisted for at least 1 year ( P <0.01). In situ hybridization for the Y chromosome showed that donor cells survived in the brains of recipient rats, among which 22.3±1.95% of cells expressed the astrocyte marker glial fibrillary acidic protein, 16.8±2.13% expressed the neuronal marker microtubule-associated protein 2, and 5.5±0.42% and <1% of cells colocalized with the microglial marker IB4 and the endothelial cell marker von Willebrand factor, respectively. Only very few BMSCs, however, were found in peripheral organs such as the heart, lung, liver, spleen, and kidney in recipient rats. BMSCs significantly reduced axonal loss ( P <0.01), the thickness of the lesion scar wall ( P <0.01), and the number of Nogo-A–positive cells ( P <0.05) along the scar border; meanwhile, synaptophysin expression ( P <0.05) was significantly increased in BMSC-treated ischemic brains compared with control untreated brains. Conclusions— The beneficial effects of BMSCs on ischemic brain tissue persisted for at least 1 year. Most surviving BMSCs were present in the ischemic brain, but very few were found in other organs. The long-term improvement in functional outcome may be related to the structural and molecular changes induced by BMSCs.

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Crossref · 10.1161/strokeaha.106.481218

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Authors
Shen, L. H., Li, Y., Chen, J., Cui, Y., Zhang, C., Kapke, A., Lu, M., Savant-Bhonsale, S., & Chopp, M.
Affiliations
  • Henry Ford Health (US)
  • From the Departments of Neurology (L.H.S., Y.L., J.C., Y.C., C.Z., M.C.) and of Biostatistics and Research Epidemiology (A.K., M.L.), Henry Ford Hospital, Detroit, Mich; Theradigm Inc (S.S.-B.), Baltimore, Md; and the Department of Physics (M.C.), Oakland University, Rochester, Mich.
Venue
Stroke
Published
2007-07
Volume
38
Issue
7
Pages
2150-2156
ISSN
  • 0039-2499 (ISSN-L)
  • 1524-4628
OpenAlex
W2048416790
Cited by
208
References
35
Citations by year
2026: 3 · 2025: 7 · 2024: 2 · 2023: 7 · 2022: 4 · 2021: 7 · 2020: 4 · 2019: 10 · 2018: 11 · 2017: 11 · 2016: 18 · 2015: 13 · 2014: 12 · 2013: 17 · 2012: 19
FWCI
8.14
Type
journal article
Language
en
Open access
closed
Locations
  • Stroke (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (P01NS23393, R01NS045041, P01NS023393, P01NS042345, R01 NS45041)
Topics
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Rehabilitation › Stroke Rehabilitation and Recovery
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
mesenchymal stem cells, cell transplantation, ischemic stroke, middle cerebral artery occlusion, long-term functional recovery, donor cell survival, axonal loss, Nogo-A, synaptophysin, glial fibrillary acidic protein, microglia, astrocytes, middle-aged female rats
MeSH terms
Age Factors, Animals, Behavior, Animal, Bone Marrow Cells, Female, Follow-Up Studies, Humans, Male, Random Allocation, Sex Factors, Bone Marrow Transplantation, Treatment Outcome, Stromal Cells, Rats, Wistar, In Situ Hybridization, Infarction, Middle Cerebral Artery, Stroke, Rats

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