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Preconditioning Adipose-Derived Mesenchymal Stem Cells With Dimethyl Fumarate Promotes Their Therapeutic Efficacy in the Brain Tissues of Rats With Alzheimer's Disease Publisher Pubmed



Babaei H1, 4 ; Kheirollah A1 ; Ranjbaran M2 ; Cheraghzadeh M1, 4 ; Sarkaki A3, 4 ; Adelipour M1, 4
Authors
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Authors Affiliations
  1. 1. Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
  2. 2. Department of Physiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Medical Plant Research Center, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
  4. 4. Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Source: Biochemical and Biophysical Research Communications Published:2023


Abstract

Aim: Transplantation of mesenchymal stem cell (MSC) has been suggested to be a promising method for treating neurodegenerative conditions, including Alzheimer's disease (AD). However, the poor survival rate of transplanted MSCs has limited their therapeutic application. This study aimed to evaluate whether preconditioning MSCs with dimethyl fumarate (DMF), a Nrf2 inducer, could enhance MSC therapeutic efficacy in an amyloid-β (Aβ1–42)-induced AD rat model. Methods: The survival and antioxidant capacity of MSCs treated with DMF were assessed in vitro. Aβ1-42 intrahippocampal injection was used to create a rat model of AD. Following the transplantation of MSCs preconditioned with DMF and using the Morris blue maze test, spatial learning and memory were assessed. Using RT-qPCR, we evaluated the gene expression related to apoptosis and neurotrophins in the hippocampus region. Results: Treatment with DMF enhanced cell survival and Nrf2 protein expression in MSCs in vitro. Preconditioning with DMF also enhanced the efficacy of transplanted MSCs in rescuing learning and spatial memory deficits in Aβ-AD rats. Besides, DMF preconditioning enhanced the neuroprotective effect of transplanted MSCs in the hippocampus of rats treated with Aβ1–42 by decreasing the expression of apoptotic markers (Bax, caspase 3, and cytochrome c), and elevating the expression of the anti-apoptotic marker Bcl2 and neurotrophins, including BDNF and NGF. Conclusion: Preconditioning MSCs with DMF boosted the therapeutic efficacy of these cells; therefore, it could serve as a targeted strategy for increasing the therapeutic efficacy of MSCs in treating neurodegenerative disorders, including AD. © 2023 Elsevier Inc.
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