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- W3148646907 abstract "Abstract Background Mesenchymal stem cells (MSCs) represent a promising treatment option for acute kidney injury (AKI).The main drawbacks of MSC therapy including the lack of specific homing following systemic infusion and early death of the cells in the inflammatory microenvironment, directly affect the therapeutic efficacy of MSCs. Erythropoietin (EPO)-preconditioning promotes the therapeutic effect of the MSCs, although the underlying mechanism remains unknown. In this study, we sought to investigate the efficacy and mechanism of EPO on bone marrow mesenchymal stem cells (BMSCs) for the treatment of AKI.Results We found that incubation of BMSCs with ischemia/reperfusion(I/R)-induced AKI kidney homogenate supernatant (KHS) caused apoptosis in the BMSCs, which was decreased following EPO pretreatment indicating that EPO protected the cells from apoptosis. Further, we found that EPO upregulated SIRT1 and Bcl-2 expression, and downregulated p53 expression. The EPO-mediated anti-apoptotic mechanism in pretreated BMSCs may be mediated though the SIRT1 pathway. In a rat AKI model, our data showed that 24 h following intravenous infusion, GFP-BMSCs were predominantly in the lungs. However, EPO pretreatment reduced the lung entrapment of BMSCs, and increased the distribution of the BMSCs to the target organs. AKI rats infused with EPO-BMSCs had significantly lower levels of serum IL-1β and TNF-a and significantly higher level of IL-10 compared to rats infused with BMSCs. The administration of EPO-BMSCs after reperfusion was more effective in reducing serum creatinine, blood urea nitrogen, and pathological scores in the I/R-AKI rats than BMSCs.Conclusions Our data suggest that EPO pretreatment enhances the efficacy of BMSCs in improving renal function and pathological presentation in I/R-AKI rats." @default.
- W3148646907 created "2021-04-13" @default.
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- W3148646907 date "2020-03-18" @default.
- W3148646907 modified "2023-10-15" @default.
- W3148646907 title "Bone mesenchymal stem cells pretreated with erythropoietin accelerate the repair of acute kidney injury" @default.
- W3148646907 doi "https://doi.org/10.21203/rs.3.rs-17590/v1" @default.
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