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Promotion of Survival and Differentiation of Neural Stem Cells with Fibrin and Growth Factor Cocktails after Severe Spinal Cord Injury
Published on: July 27, 2014
Neural stem cells grafts decrease neural apoptosis associated with caspase-7 downregulation and BDNF upregulation in
Guan-nan Xia1, Yu Zou, You-cui Wang
1Department of Histology, Embryology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, 610041, China.
Cellular and Molecular Neurobiology
|August 22, 2013
Summary
Neural stem cell (NSC) transplantation in rats with spinal cord injuries reduced cell death. This neuroprotection was linked to increased BDNF and decreased caspase-7, though behavioral improvements were not observed.
Area of Science:
- Neuroscience
- Regenerative Medicine
- Stem Cell Biology
Background:
- Neural stem cells (NSCs) show promise for spinal cord repair.
- The precise mechanisms behind NSC therapeutic effects remain unclear.
Purpose of the Study:
- To investigate the neuroprotective mechanisms of NSCs in a rat spinal cord hemi-section model.
- To determine the molecular changes associated with NSC transplantation in spinal cord injury.
Main Methods:
- Spinal cord hemi-section was performed in rats.
- Intravenous injection of neural stem cells (NSCs).
- Analysis of BDNF mRNA, TrkB, and caspase-7 levels; TUNEL staining for apoptosis.
Main Results:
- NSCs exhibited a neuroprotective effect by reducing apoptosis in the injured spinal cord.
- BDNF mRNA levels increased, while caspase-7 expression decreased significantly post-NSC injection.
- TUNEL staining confirmed a reduction in apoptotic cells in NSC-treated rats compared to controls.
- No significant behavioral improvement was observed despite neuroprotection.
Conclusions:
- NSC transplantation confers neuroprotection in spinal cord injury via an anti-apoptotic mechanism.
- The observed neuroprotection is associated with upregulated BDNF and downregulated caspase-7.
- Further research is needed to translate these findings into functional recovery strategies.
