期刊
BRAIN RESEARCH
卷 1051, 期 1-2, 页码 183-188出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.brainres.2005.05.054
关键词
macrophages; microglia; spinal cord injury; ED1; 3CB2
Macrophages/microglia are implicated in spinal cord injury but their precise role in the process is not clear. Our previous studies have reported that radial glia (RG) possess properties of neural stem cells and remerged after central nervous system (CNS) injury which may play an important role in neural repair and regeneration. In the present study, we examined the expression of ED1 (a specific marker for activated macrophages/microglia) and RG in a spinal cord injury (SCI) model and detected the activation at 1, 4, 8, and 12 weeks in both dorsal funiculus and ventral white matter after SCI. For both ED1-positive cells and RG cells, there was a gradual increase in density and in number from 1 to 4 weeks followed by down-regulation up to 12 weeks after injury. The morphologies of macrophages and radial glia were different. However, some ED1-positive cells were also stained by RG marker. These results suggest that macrophages may have some lineage to radial glial cells. (c) 2005 Elsevier B.V All rights reserved.
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