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- Title
Trehalose protects against spinal cord injury through regulating heat shock proteins 27 and 70 and caspase-3 genes expression.
- Authors
Nasouti, Roya; Khaksari, Mohammad; Mirzaee, Moghaddameh; Nazari-Robati, Mahdieh
- Abstract
Background: Heat shock proteins (HSPs) are a class of highly conserved proteins responsible for various functions critical to cell survival. Pharmacological induction of HSPs has been implicated in the regulation of neuronal loss and functional deficits in peripheral and central nervous system injuries. Accordingly, the present study was conducted to investigate the effect of trehalose on spinal expression of HSP27, HSP70 and caspase-3 genes following traumatic spinal cord injury (SCI) in rats. Methods: Male rats weighing 250-300 g underwent laminectomy and were divided into four groups including sham, SCI (received SCI), vehicle (received SCI and phosphate buffer saline intrathecally) and trehalose (received 10 mM trehalose intrathecally following SCI). On days 1, 3 and 7 after injury, HSP27, HSP70 and caspase-3 genes transcripts were quantified in spinal cord tissues via a real-time PCR technique. In addition, locomotor function was assessed using the Basso, Beattie and Bresnahan (BBB) rating scale. Results: SCI induced the expression of HSP27, HSP70 and caspase-3 genes and BBB score at all time points. Trehalose treatment upregulated HSP27, HSP70 genes expression at 1 day after SCI. Interestingly, a significant reduction in the expression of HSP27 and HSP70 genes was observed on days 3 and 7 following trauma compared with the vehicle group (p < 0.01). Caspase-3 gene showed a decrease in expression in the trehalose-treated group at all times. In addition, neurological function revealed an improvement after treatment with trehalose. Conclusion: This study suggests that the neuroprotective effect of trehalose is mediated via regulation of HSP27 and HSP70, which are involved in cytoprotection and functional recovery following SCI.
- Subjects
ANIMAL experimentation; BUFFER solutions; CONVALESCENCE; DISACCHARIDES; GENE expression; HEAT shock proteins; HUMAN locomotion; LAMINECTOMY; PHYSIOLOGIC salines; POLYMERASE chain reaction; RATS; SPINAL cord; SPINAL cord injuries; TIME; CASPASES
- Publication
Journal of Basic & Clinical Physiology & Pharmacology, 2020, Vol 31, Issue 1, p1
- ISSN
0792-6855
- Publication type
Article
- DOI
10.1515/jbcpp-2018-0225