Abstract:
:Granulocyte colony-stimulating factor (G-CSF) mobilizes peripheral blood stem cells (PBSCs) derived from bone marrow. We hypothesized that intraspinal transplantation of PBSCs mobilized by G-CSF could promote functional recovery after spinal cord injury. Spinal cords of adult nonobese diabetes/severe immunodeficiency mice were injured using an Infinite Horizon impactor (60 kdyn). One week after the injury, 3.0 µl of G-CSF-mobilized human mononuclear cells (MNCs; 0.5 × 10(5)/µl), G-CSF-mobilized human CD34-positive PBSCs (CD34; 0.5 × 10(5)/µl), or normal saline was injected to the lesion epicenter. We performed immunohistochemistry. Locomotor recovery was assessed by Basso Mouse Scale. The number of transplanted human cells decreased according to the time course. The CD31-positive area was significantly larger in the MNC and CD34 groups compared with the vehicle group. The number of serotonin-positive fibers was significantly larger in the MNC and CD34 groups than in the vehicle group. Immunohistochemistry revealed that the number of apoptotic oligodendrocytes was significantly smaller in cell-transplanted groups, and the areas of demyelination in the MNC- and CD34-transplanted mice were smaller than that in the vehicle group, indicating that cell transplantation suppressed oligodendrocyte apoptosis and demyelination. Both the MNC and CD34 groups showed significantly better hindlimb functional recovery compared with the vehicle group. There was no significant difference between the two types of transplanted cells. Intraspinal transplantation of G-CSF-mobilized MNCs or CD34-positive cells promoted angiogenesis, serotonergic fiber regeneration/sparing, and preservation of myelin, resulting in improved hindlimb function after spinal cord injury in comparison with vehicle-treated control mice. Transplantation of G-CSF-mobilized PBSCs has advantages for treatment of spinal cord injury in the ethical and immunological viewpoints, although further exploration is needed to move forward to clinical application.
journal_name
Cell Transplantjournal_title
Cell transplantationauthors
Takahashi H,Koda M,Hashimoto M,Furuya T,Sakuma T,Kato K,Okawa A,Inada T,Kamiya K,Ota M,Maki S,Takahashi K,Yamazaki M,Mannoji Cdoi
10.3727/096368915X688146subject
Has Abstractpub_date
2016-01-01 00:00:00pages
283-92issue
2eissn
0963-6897issn
1555-3892pii
content-CT-1379_Takahashi_et_aljournal_volume
25pub_type
杂志文章abstract::Electrostimulation represents a well-known trophic factor for different tissues. In vitro electrostimulation of non-stem and stem cells induces myogenic predifferentiation and may be a powerful tool to generate cells with the capacity to respond to local areas of injury. We evaluated the effects of in vivo electrostim...
journal_title:Cell transplantation
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pub_type: 杂志文章,多中心研究,随机对照试验
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journal_title:Cell transplantation
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journal_title:Cell transplantation
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journal_title:Cell transplantation
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journal_title:Cell transplantation
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journal_title:Cell transplantation
pub_type: 杂志文章,评审
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journal_title:Cell transplantation
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journal_title:Cell transplantation
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journal_title:Cell transplantation
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