Intracerebroventricular injection of Wharton’s jelly mesenchymal stem cells attenuates Brain Damage in Rat Model of Hypoxia: Optimization of vascular endothelial growth factor and downregulation of inflammatory factors

  • Kobra Mehrannia Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Tahmineh Mokhtari Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
  • Seyed Mohammad Hossein Noori Mogehi Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Mohammad Akbari Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Javad Tavakkoly Bazzaz Department of Genetic, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Simin Mahakizeh Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Yousef Mohammai Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Sahar Ijaz Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  • Gholamreza Hassanzadeh Department of Neuroscience, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran

Abstract

Objective: In this study, we investigated the effects of intracerebroventricular (ICV) Wharton’s jelly mesenchymal stem cells (WJ-MSCs) injection in rat model of hypoxic brain injury by evaluating the amount of vascular endothelial growth factor (VEGF) and pro inflammatory factors in hippocampus.
Methods: 24 rats were allocated to four groups of study:1) control and intact animals (Co), 2) sham group (Sh): animals were placed in the hypoxia chamber without inducing hypoxia and injected PBS, 3) hypoxia (H), 4) H+WJ-MSC, Hypoxia was induced by placing animals in the hypoxia chamber for  30 days (4hours a day). After three days of vehicle or WJ-MSCs injection, the rats were sacrificed and brain tissues were prepared for molecular and histopathological studies.
Results: Despite a decrease in the gene expression of IL1β, TNFα, IL18, and the number of dark neurons in CA1 region of hippocampus in H+ WJ-MSC groups Compared to H (P˂0.05). There is an increase in all these factors in both H and H+WJ-MSC groups compared to CO and Sh groups (P˂0.05).  The gene expression and protein concentration of VEGF increased in both H and H+WJ-MSC groups compared to Co and Sh groups (P˂0.05).
Conclusion: Based on the findings, WJ-MSCs could reduce the number of dark neurons in hippocampus by increasing the VEGF synthesis and reducing inflammation in hypoxic condition.
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Published
2018-09-26
How to Cite
MEHRANNIA, Kobra et al. Intracerebroventricular injection of Wharton’s jelly mesenchymal stem cells attenuates Brain Damage in Rat Model of Hypoxia: Optimization of vascular endothelial growth factor and downregulation of inflammatory factors. Journal of Contemporary Medical Sciences, [S.l.], v. 4, n. 3, sep. 2018. ISSN 2413-0516. Available at: <http://www.jocms.org/index.php/jcms/article/view/451>. Date accessed: 24 oct. 2018.
Section
Articles

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