[Bone marrow stem cell-derived astrocytes are involved in glia limitans formation in rats after brain injury].
OBJECTIVE
To investigate the involvement of bone marrow stem cell-derived astrocytes (BMDSCs) in the formation of glia limitans after brain injury.


METHODS
In a female SD rat model of brain injury, green fluorescence protein (GFP)-labeled BMDSCs from male SD rats were transplanted via the caudal vein 24 h after the injury. The rats were sacrificed at 2, 4 and 8 weeks after the transplantation, and immunohistochemistry for glial fibrillary acidic protein (GFAP) was performed to observe the astrocytes. The fluorescence emitted by GFP was observed to identify the presence of the bone marrow-derived stem cells, and the GFAP(+)/GFP(+) cells in the glia limitnas were detected under fluorescence microscopy. RESULTS The GFAP(+)/GFP(+) cells were found in the glia limitans between the brain lesion and normal brain tissue.


CONCLUSIONS
Bone marrow stem cell-derived astrocytes is involved in glia limitans formation after brain injury, which can be of significance in brain injury recovery and implantation of engineered materials.
Zou
Xi-feng
XF
Department of Neurosurgery, Affiliated Hospital of North China Coal Medical University, Tangshan 063000, China.
Zhu
Jun
J
Li
Jian-min
JM
Zhang
Hai-yan
HY
Zhao
Chun-li
CL
Xu
Qun-yuan
QY
D000818:Animals; D001253:Astrocytes / Q000166:cytology / Q000502:physiology*; D001854:Bone Marrow Cells / Q000166:cytology* / Q000378:metabolism*; D001930:Brain Injuries / Q000473:pathology; D005260:Female; D005904:Glial Fibrillary Acidic Protein / Q000378:metabolism; D049452:Green Fluorescent Proteins; D008297:Male; D059630:Mesenchymal Stem Cells / Q000166:cytology*; D009457:Neuroglia / Q000378:metabolism*; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley
D005904:Glial Fibrillary Acidic Protein; D049452:Green Fluorescent Proteins