@article { author = {Aminzadeh, Azadeh and Tekiyeh Maroof, Neda and Mehrabani, Mehrnaz and Bahrampour Juybari, Kobra and Sharifi, Ali Mohammad}, title = {Investigating The Alterations of Oxidative Stress Status, Antioxidant Defense Mechanisms, MAP Kinase and Mitochondrial Apoptotic Pathway in Adipose-Derived Mesenchymal Stem Cells from STZ Diabetic Rats}, journal = {Cell Journal (Yakhteh)}, volume = {22}, number = {supplement 1}, pages = {38-48}, year = {2020}, publisher = {Royan Institute, Iranian Academic Center for Education Culture and Research (ACECR)}, issn = {2228-5806}, eissn = {2228-5814}, doi = {10.22074/cellj.2020.6958}, abstract = {Objective: This study aimed to investigate the reliability of diabetic adipose-derived stem cells (ADSCs) for autologouscell-based therapies by exploring the functionality of signalling pathways involved in regulating oxidative stress andapoptosis.Materials and Methods: In this experimental study, ADSCs were isolated from streptozotocin (STZ)-induced diabeticrats (dADSCs) and normal rats (nADSCs). The colonies derived from dADSCs and nADSCs were compared by colony-forming unit (CFU) assay. Reactive oxygen species (ROS) formation and total antioxidant power (TAP) were also measured. Furthermore, the expression of antioxidant enzymes, including catalase (Cat), superoxide dismutase (Sod)-1 and -3, glutathione peroxidase (Gpx)-1, -3 and -4 was measured at mRNA level by semi-quantitative reverse transcriptase polymerase chain reaction assay. The expression of Bax, Bcl2, caspase-3, total and phosphorylated c-Jun N-terminal kinase (JNK) and P38 Mitogen-Activated Protein Kinase (MAPK) at protein level was analyzed by western blotting.Results: The results of this study indicated that viability and plating efficiency of dADSCs were significantly lower thanthose of nADSCs. ROS generation and TAP level were respectively higher and lower in dADSCs. The gene expression of antioxidant enzymes, including Cat, Sod-1, Gpx-3 and Gpx-4 in dADSCs was significantly greater than that in nADSCs. However, Sod-3 and Gpx-1 mRNA levels were decreased in dADSCs. Moreover, Bax/Bcl-2 protein ratio, caspase-3 protein expression and phosphorylation of JNK and P38 proteins were increased in dADSCs compared to nADSCs.Conclusion: Taken together, diabetes might impair the cellular functions of dADSCs as candidates for autologous cellbased therapies. This impairment seems to be mediated by JNK, P38 MAPKs, and mitochondria pathway of apoptosisand partly by disruption of antioxidant capacity.}, keywords = {Adipose-Derived Stem Cells,Antioxidant,Apoptosis,Cell therapy,Diabetes}, url = {https://www.celljournal.org/article_251694.html}, eprint = {https://www.celljournal.org/article_251694_2a1a9afb67d499b0a2e3c57ca9fc4741.pdf} }