scholarly journals Bone marrow derived mesenchymal stem cells pretreated with erythropoietin accelerate the repair of acute kidney injury

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Song Zhou ◽  
Yu-ming Qiao ◽  
Yong-guang Liu ◽  
Ding Liu ◽  
Jian-min Hu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Acute Kidney Injury ◽  
Mesenchymal Stem Cells ◽  
Ischemia Reperfusion ◽  
Kidney Injury ◽  
Underlying Mechanism ◽  
P53 Expression ◽  
Inflammatory Microenvironment ◽  
Apoptotic Effect

Abstract Background Mesenchymal stem cells (MSCs) represent a promising treatment option for acute kidney injury (AKI). The main drawbacks of MSCs therapy, including the lack of specific homing after systemic infusion and early cell death in the inflammatory microenvironment, directly affect the therapeutic efficacy of MSCs. Erythropoietin (EPO)-preconditioning of MSCs promotes their therapeutic effect, however, the underlying mechanism remains unknown. In this study, we sought to investigate the efficacy and mechanism of EPO in bone marrow derived mesenchymal stem cells (BMSCs) for AKI treatment. Results We found that incubation of BMSCs with ischemia/reperfusion(I/R)-induced AKI kidney homogenate supernatant (KHS) caused apoptosis in BMSCs, which was decreased by EPO pretreatment, indicating that EPO protected the cells from apoptosis. Further, we showed that EPO up-regulated silent information regulator 1 (SIRT1) and Bcl-2 expression and down-regulated p53 expression. This effect was partially reversed by SIRT1 siRNA intervention. The anti-apoptotic effect of EPO in pretreated BMSCs may be mediated through the SIRT1 pathway. In a rat AKI model, 24 h after intravenous infusion, GFP-BMSCs were predominantly located in the lungs. However, EPO pretreatment reduced the lung entrapment of BMSCs and increased their distribution in the target organs. AKI rats infused with EPO-BMSCs had significantly lower levels of serum IL-1β and TNF-α, and a significantly higher level of IL-10 as compared to rats infused with untreated BMSCs. The administration of EPO-BMSCs after reperfusion reduced serum creatinine, blood urea nitrogen, and pathological scores in I/R-AKI rats more effectively than BMSCs treatment did. Conclusions Our data suggest that EPO pretreatment enhances the efficacy of BMSCs to improve the renal function and pathological presentation of I/R-AKI rats.

scholarly journals Bone marrow derived mesenchymal stem cells pretreated with erythropoietin accelerate the repair of acute kidney injury

2020 ◽  
Author(s):  
song zhou ◽  
Yu-ming Qiao ◽  
Yong-guang Liu ◽  
Ding Liu ◽  
Jian-min Hu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Acute Kidney Injury ◽  
Mesenchymal Stem Cells ◽  
Ischemia Reperfusion ◽  
Kidney Injury ◽  
Underlying Mechanism ◽  
P53 Expression ◽  
Inflammatory Microenvironment ◽  
Apoptotic Effect

Abstract Background Mesenchymal stem cells (MSCs) represent a promising treatment option for acute kidney injury (AKI). The main drawbacks of MSCs therapy, including the lack of specific homing after systemic infusion and early cell death in the inflammatory microenvironment, directly affect the therapeutic efficacy of MSCs. Erythropoietin (EPO)-preconditioning of MSCs promotes their therapeutic effect; however, the underlying mechanism remains unknown. In this study, we sought to investigate the efficacy and mechanism of EPO in bone marrow derived mesenchymal stem cells (BMSCs) for AKI treatment. Results We found that incubation of BMSCs with ischemia/reperfusion(I/R)-induced AKI kidney homogenate supernatant (KHS) caused apoptosis in BMSCs, which was decreased by EPO pretreatment, indicating that EPO protected the cells from apoptosis. Further, we showed that EPO up-regulated SIRT1 and Bcl-2 expression and down-regulated p53 expression. This effect was partially reversed by SIRT1 siRNA intervention. The anti-apoptotic effect of EPO in pretreated BMSCs may be mediated through the SIRT1 pathway. In a rat AKI model, 24 h after intravenous infusion, GFP-BMSCs were predominantly located in the lungs. However, EPO pretreatment reduced the lung entrapment of BMSCs and increased their distribution in the target organs. AKI rats infused with EPO-BMSCs had significantly lower levels of serum IL-1β and TNF-α, and a significantly higher level of IL-10 as compared to rats infused with untreated BMSCs. The administration of EPO-BMSCs after reperfusion reduced serum creatinine, blood urea nitrogen, and pathological scores in I/R-AKI rats more effectively than BMSCs treatment did. Conclusions Our data suggest that EPO pretreatment enhances the efficacy of BMSCs to improve the renal function and pathological presentation of I/R-AKI rats.

scholarly journals Bone mesenchymal stem cells pretreated with erythropoietin accelerate the repair of acute kidney injury

2020 ◽  
Author(s):  
song zhou ◽  
Yu-ming Qiao ◽  
Yong-guang Liu ◽  
Ding Liu ◽  
Jian-min Hu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Acute Kidney Injury ◽  
Mesenchymal Stem Cells ◽  
Ischemia Reperfusion ◽  
Kidney Injury ◽  
Early Death ◽  
Underlying Mechanism ◽  
Bone Mesenchymal Stem Cells ◽  
P53 Expression ◽  
Inflammatory Microenvironment

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.

scholarly journals Bone mesenchymal stem cells pretreated with erythropoietin accelerate the repair of acute kidney injury

2020 ◽  
Author(s):  
song zhou ◽  
Yu-ming Qiao ◽  
Yong-guang Liu ◽  
Ding Liu ◽  
Jian-min Hu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Acute Kidney Injury ◽  
Mesenchymal Stem Cells ◽  
Ischemia Reperfusion ◽  
Kidney Injury ◽  
Underlying Mechanism ◽  
Bone Mesenchymal Stem Cells ◽  
P53 Expression ◽  
Inflammatory Microenvironment ◽  
Marrow Mesenchymal Stem Cells

Abstract Background: Mesenchymal stem cells (MSCs) represent a promising treatment option for acute kidney injury (AKI). The main drawbacks of MSCs therapy, including the lack of specific homing after systemic infusion and early cell death in the inflammatory microenvironment, directly affect the therapeutic efficacy of MSCs. Erythropoietin (EPO)-preconditioning of MSCs promotes their therapeutic effect; however, the underlying mechanism remains unknown. In this study, we sought to investigate the efficacy and mechanism of EPO in bone marrow mesenchymal stem cells (BMSCs) for AKI treatment.Results: We found that incubation of BMSCs with ischemia/reperfusion(I/R)-induced AKI kidney homogenate supernatant (KHS) caused apoptosis in BMSCs, which was decreased by EPO pretreatment, indicating that EPO protected the cells from apoptosis. Further, we showed that EPO up-regulated SIRT1 and Bcl-2 expression and down-regulated p53 expression. This effect was partially reversed by SIRT1 siRNA intervention. The anti-apoptotic effect of EPO in pretreated BMSCs may be mediated through the SIRT1 pathway. In a rat AKI model, 24 h after intravenous infusion, GFP-BMSCs were predominantly located in the lungs. However, EPO pretreatment reduced the lung entrapment of BMSCs and increased their distribution in the target organs. AKI rats infused with EPO-BMSCs had significantly lower levels of serum IL-1β and TNF-α, and a significantly higher level of IL-10 as compared to rats infused with untreated BMSCs. The administration of EPO-BMSCs after reperfusion reduced serum creatinine, blood urea nitrogen, and pathological scores in I/R-AKI rats more effectively than BMSCs treatment did.Conclusions: Our data suggest that EPO pretreatment enhances the efficacy of BMSCs to improve the renal function and pathological presentation of I/R-AKI rats.

scholarly journals Bone Marrow-Derived Mesenchymal Stem Cells Ameliorate Sepsis-Induced Acute Kidney Injury by Promoting Mitophagy of Renal Tubular Epithelial Cells via the SIRT1/Parkin Axis

2021 ◽  
Vol 12 ◽  
Author(s):  
Jun Guo ◽  
Rong Wang ◽  
Donghai Liu
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Acute Kidney Injury ◽  
Mesenchymal Stem Cells ◽  
Epithelial Cells ◽  
Kidney Injury ◽  
Tubular Epithelial Cells ◽  
Renal Tubular Epithelial Cells ◽  
Differentiation Potential ◽  
Renal Tubular

Sepsis is a common risk factor for acute kidney injury (AKI). Bone marrow-derived mesenchymal stem cells (BMSCs) bear multi-directional differentiation potential. This study explored the role of BMSCs in sepsis-induced AKI (SI-AKI). A rat model of SI-AKI was established through cecal ligation and perforation. The SI-AKI rats were injected with CM-DiL-labeled BMSCs, followed by evaluation of pathological injury of kidney tissues and kidney injury-related indicators and inflammatory factors. HK-2 cells were treated with lipopolysaccharide (LPS) to establish SI-SKI model in vitro. Levels of mitochondrial proteins, autophagy-related proteins, NLRP3 inflammasome-related protein, and expressions of Parkin and SIRT1 in renal tubular epithelial cells (RTECs) of kidney tissues and HK-2 cells were detected. The results showed that BMSCs could reach rat kidney tissues and alleviate pathological injury of SI-SKI rats. BMSCs inhibited inflammation and promoted mitophagy of RTECs and HK-2 cells in rats with SI-AKI. BMSCs upregulated expressions of Parkin and SIRT1 in HK-2 cells. Parkin silencing or SIRT1 inhibitor reversed the promoting effect of BMSCs on mitophagy. BMSCs inhibited apoptosis and pyroptosis of RTECs in kidney tissues by upregulating SIRT1/Parkin. In conclusion, BMSCs promoted mitophagy and inhibited apoptosis and pyroptosis of RTECs in kidney tissues by upregulating SIRT1/Parkin, thereby ameliorating SI-AKI.

scholarly journals PINK1 Kinase Enhances the Repair Effects of Bone Marrow Mesenchymal Stem Cells on Renal Ischemia/Reperfusion-Induced Acute Kidney Injury in Mice

2022 ◽  
Author(s):  
Chenyu Lin ◽  
Wen Chen ◽  
Yong Han ◽  
Yujie Sun ◽  
Xiaoqiong Zhao ◽  
...  
Keyword(s):  
Stem Cells ◽  
Acute Kidney Injury ◽  
Mesenchymal Stem Cells ◽  
Stress Response ◽  
Immune Cells ◽  
Peripheral Blood ◽  
Ischemia Reperfusion ◽  
Kidney Injury ◽  
Short Period ◽  
Injured Kidney

Abstract Background: Acute kidney injury (AKI) is a common severe acute syndrome caused by multiple causes, which is characterized by a rapid decline of renal function in a short period. Bone mesenchymal stem cells (BMSCs) are effective in the treatment of AKI. However, it remains unclear about the mechanism of their beneficial effects. PENT-induced kinase 1 (PINK1) may play an important role in the kidney tissue repair. In this study, an endeavor would be made to explore the enhancing effect of PINK1 overexpression on the repair of AKI through BMSCs. Methods: In this study, the ischemia/reperfusion-induced acute kidney injury (IRI-AKI) in mice and the hypoxia-reoxygenation model of cells were established, and the indexes were detected by pathology and immunology experimental.Results: After ischemia/reperfusion, compared with the BMSCs group, the OE PINK1 group had a decreased expression of BUN, the mitigated renal fibrosis , the reduced tissue damage degree. Overexpressed PINK1 could decrease the inflammatory reaction of injured kidney tissues in IRI-AKI mice, the decreased expression of IL-10 in peripheral blood serum; and regulate the distribution of immune cells in the kidney during IRI, the decreased infiltration of lymphocytes, the increased infiltration of macrophages; and reduce the stress response of BMSCs under hypoxia and inflammation; and enhance the stress response of BMSCs to renal tubular epithelial cells(RTECs) under hypoxia and inflammation, the decreased apoptosis rate of RTECs, the decreased release of TNF-α in the cell supernatant, and the decreased proliferation of PBMCs in peripheral blood after hypoxia and reoxygenation; and regulate the autophagy of BMSCs in kidney tissues with IRI-AKI to better repair the injured kidney tissues, the increased expression of LC3-B related to autophagy and the decreased expression of mTOR.Conclusions: In this study, PINK1 overexpression enhances the repair effect of BMSCs on IRI-AKI, and the distribution of injured renal immune cells during IRI regulation by BMSCs. Besides, PINK1 enhances BMSCs and their resistance to the stress response of RTECs under hypoxia and inflammation. In addition, it regulates mitophagy during IRI-AKI. The findings of this study provide a new direction and target for the repair of IRI-AKI through BMSCs.

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