:: Volume 22, Issue 4 (7-2018) ::
IBJ 2018, 22(4): 246-257 Back to browse issues page
Decrease in Cavity Size and Oligodendrocyte Cell Death Using Neurosphere-Derived Oligodendrocyte-Like Cells in Spinal Cord Contusion Model
Hojjat Allah Abbaszadeh , Taki Tiraihi , Yousef Sadeghi , Ali Reza Delshad , Majid Sadeghizadeh , Taher Taheri , Ali Noori-Zadeh
Background: Oligodendrocyte cell death is among the important features of spinal cord injury, which appears within 15 min and occurs intensely for 4 h after injury, in the rat spinal contusion model. Accordingly, the number of oligodendrocytes progressively reduced within 24 h after injury. Administration of oligodendrocyte-like cells (OLCs) into the lesion area is one of the approaches to counterbalance this condition. Methods:  Bone marrow stromal cells were transdifferentiated into neurospheres and then into neural stem cells and later were differentiated into OLCs using triiodothyronine and transplanted into the spinal cord contusion rats. The post-injury functional recovery was explored and compared with the control group using Basso-Beattie-Bresnahan and narrow beam behavioral tests. At the end of 12th week, spinal cord segments T12-L1 were histomorphologically studied by immunohistochemistry. Results: Motor improvement was more obvious during 2nd to 4th weeks and got less prominent during 4th to 12th weeks. Histomorphometric findings indicated that cavity formation decreased in epicenter of transplantation area in experimental groups in comparison with the control groups. Conclusion: The findings obtained in the present study showed that OLC therapy is a potential approach in the treatment of spinal cord traumatic injuries.
Keywords: Spinal cord injury, Myelin basic protein, Oligodendrocyte
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Type of Study: Full Length | Subject: Tissue Engineering and Cell Biology

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Volume 22, Issue 4 (7-2018) Back to browse issues page