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首页> 外文期刊>Cell biology international. >Klotho gene‐modified BMSCs showed elevated antifibrotic effects by inhibiting the Wnt/β‐catenin pathway in kidneys after acute injury
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Klotho gene‐modified BMSCs showed elevated antifibrotic effects by inhibiting the Wnt/β‐catenin pathway in kidneys after acute injury

机译:Klotho基因改性的BMSCs通过抑制急性损伤后肾脏中的Wnt /β-catenin途径显示升高的抗纤维效应

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Abstract Klotho is a protein primarily expressed in renal tubular epithelial cells. Studies have suggested that Klotho is an antiaging protein that reduces renal fibrosis after acute kidney injury (AKI) and inhibits stem cell senescence. Bone marrow mesenchymal stem cells (BMSCs) have consistent proliferation ability and multidirectional differentiation ability and have been used to treat tissue injury. Thus, we hypothesized that Klotho expressed in BMSCs could increase the renal protective effects of BMSCs. To verify the hypothesis, we isolated BMSCs from C57BL/6 mice, transfected them with Klotho‐GFP‐adenovirus and investigated the change in BMSC proliferation. We then transplanted Klotho‐GFP‐BMSCs into mice with AKI and investigated the therapeutic effect compared with that of sham‐treated mice and GFP‐BMSC‐transplanted mice. Kidney fibrosis after ischemia/reperfusion injury (IRI) was relieved by BMSC transplantation, and the antifibrotic effect of BMSCs was significantly enhanced by overexpressing the Klotho gene. Mechanistic studies showed that Klotho increased pluripotency gene expression in BMSCs. Klotho produced by Klotho‐GFP‐BMSCs inhibited the Wnt/β‐catenin pathway in renal tubular epithelial cells (TECs). Klotho‐GFP‐BMSCs showed increased proliferative ability and more potent immuno‐regulation ability than did GFP‐BMSCs. Our findings suggested that Klotho gene‐modified BMSCs may be a better choice for cell therapy after AKI.
机译:摘要Klotho是一种主要在肾小管上皮细胞中表达的蛋白质。研究表明,Klotho是一种抗衰蛋白,可在急性肾损伤(AKI)后减少肾纤维化并抑制干细胞衰老。骨髓间充质干细胞(BMSCs)具有一致的增殖能力和多向分化能力,并已用于治疗组织损伤。因此,我们假设BMSCs中表达的Klotho可以增加BMSCs的肾脏保护作用。为了验证假设,我们从C57BL / 6小鼠中分离BMSC,用Klotho-GFP-adenovirus转染并研究了BMSC增殖的变化。然后,我们用AKI将Klotho-GFP-BMSC移植到小鼠中,并研究了与假处理的小鼠和GFP-BMSC移植的小鼠相比的治疗效果。通过BMSC移植缓解缺血/再灌注损伤(IRI)后的肾纤维化,通过过表达Klotho基因,BMSCs的抗纤维化效应显着提高。机械研究表明,Klotho增加了BMSCs中的多能性基因表达。 Klotho-GFP-BMSC产生的Klotho抑制了肾小管上皮细胞(TECS)的WNT /β-Catenin途径。 Klotho-GFP-BMSCs表现出比GFP-BMSCs更高的增殖能力和更有效的免疫调节能力。我们的研究结果表明,Klotho基因改性的BMSCs可能是AKI后细胞疗法的更好选择。

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