Iron depletion with deferoxamine protects bone marrow-derived mesenchymal stem cells against oxidative stress-induced ap
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ORIGINAL PAPER
Iron depletion with deferoxamine protects bone marrow-derived mesenchymal stem cells against oxidative stress-induced apoptosis Nasrin Khoshlahni 1,2 & Mohsen Sagha 2 & Tooba Mirzapour 3 & Mahin Nikougoftar Zarif 4 & Mohammad Mohammadzadeh-Vardin 2 Received: 21 January 2020 / Revised: 12 July 2020 / Accepted: 20 July 2020 # Cell Stress Society International 2020
Abstract Bone marrow mesenchymal stem cells (BM-MSCs) are multipotent cells with self-renewal properties, making them an ideal candidate for regenerative medicine. Recently, numerous studies show that about more than 99% of transplanted cells are destroyed because of the stressful microenvironment. Meanwhile, in the target organs, iron overload can produce oxidative stress introducing it as the most important stress factor. The present study was aimed at increasing BM-MSCs’ viability against oxidative stress microenvironment using iron depletion by deferoxamine (DFO). Mesenchymal stem cells are isolated and characterized from rat bone marrow. Then, the sensitivity of BM-MSCs against H2O2-induced oxidative stress was evaluated through half of the inhibitory concentration (IC50) estimation by using MTT assay. The maximum non-inhibitory concentration of DFO on BM-MSCs was determined. The next step was the comparison between DFO pre-treated BM-MSCs and untreated cells against H2O2-induced apoptosis. BM-MSCs were identified with morphologic and flow cytometry analysis. IC50 of H2O2 was determined as 0.55 mM at 4 h. Also, the maximum non-inhibitory concentration of DFO was ascertained as 5 μM at 48 h. Our results demonstrated that pretreatment with DFO significantly potentiates BM-MSCs against H2O2-induced oxidative stress which was confirmed by MTT assay, AO/EB double staining, DAPI staining, and activated caspase 3 quantification as well as western blot test. Expression of cleaved caspase 3 and pAKT/AKT ratio obviously demonstrated DFO can resist the cells against cytotoxicity. These findings may help to develop better stem cell culture medium for MSC-based cell therapy. Moreover, regulation of cell stress can be used in practical subjects. Keywords Deferoxamine . Mesenchymal stem cells . Oxidative stress . Apoptosis
Introduction Mesenchymal stem cells (MSCs) are multipotent stem cells with self-renewing capability, which can differentiate into the chondrogenic, adipogenic, and osteogenic cells. Besides the Nasrin Khoshlahni and Mohsen Sagha contributed equally to this work. * Mohammad Mohammadzadeh-Vardin [email protected]; [email protected] 1
Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
2
Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
3
Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran
4
Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
bone marrow, MSCs can be isolated fro
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