Effect of Sambucus ebulus extract on neural stem cell prolifration under oxidative stress condition
Journal Title: مجله علمي دانشگاه علوم پزشكي كردستان - Year 2018, Vol 23, Issue 95
Abstract
Background and Aim: Recently, several studies have indicated that the central nervous system has the capacity for endogenous repair. But, the proliferation capacity of endogenous neural stem cells (NSCs) isn’t sufficient for the treatment of neurodegenerative diseases. So, it sounds that stimulation of endogenous NSC proliferation is essential for neuroregeneration. The aim of this study was to examine the effects of Sambucus ebulus extract on the proliferation of neonatal rat hippocampus-derived neural stem cells (NSCs) under oxidative stress condition induced by H2O2. Material and Methods: The NSCs were isolated from neonatal rat hippocampus. To confirm neural characteristics of neural stem cells, the expression of neural-specific marker, Nestin was investigated by immunocytochemistry technique. 5×104 cells were cultured in every well of a 96 well plate and H2O2 was added to induce oxidative stress condition. Then NSCs were exposed to 50 µg Sambucus ebulus extract for 24 hours, at various concentrations (25, 50, 100, 200, 400 and 500 μg/ml). The cell proliferation rate was assessed by MTT colorimetry assay before and after treatment with the extract. Results: Immunofluorescent studies showed that neural stem cells expressed specific neural marker; Nestin. The proliferation rate of NSCs increased in the treated groups in comparison to that in the control group. The highest rate of survival was observed when Sambucus ebulus was used at the concentration of 500 μg/ml. (P<0.05). Conclusion: The results showed that the methanolic extract of Sambucus ebulus can promote proliferation and survival of NCSs in vitro and also after exposure to oxidative stress condition, suggesting its potential beneficial effect on neuroregeneration.
Authors and Affiliations
MSc S Haratizadeh, PhD MA Ebrahim Zadeh, PhD M Nazm Bojnordi, PhD H Ghasemi Hamidabadi, PhD A Abdanipour, PhD J Akhtari
Keywords
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