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Implanted electro-acupuncture electric stimulation improves outcome of stem cells’ transplantation in spinal cord injury

机译:植入电针电刺激可改善干细胞移植在脊髓损伤中的疗效

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Spinal cord injury (SCI) is one of the most serious disorders in clinics, and the high disability rate and functional deficits are common issues in patients. Transplantation of bone-marrow-derived mesenchymal stromal cells (BMSCs) into the injured spinal cord is emerging as a novel method in the therapeutics of SCI; however, its application is limited by the poor survival rate of the transplanted cells and low differentiation rate into neurons. Our laboratory recently reported that electrical stimulation (ES) dramatically improves the survival rate of transplanted BMSCs and increases spinal cord functions in animals with spinal cord injury. In this paper, we asked whether implanted electro-acupuncture (iEA) can advance the beneficial effects from the ES treatment in animals with spinal cord injury. We showed that BMSCs transplantation alone resulted in significant functional recovery in animals. Interestingly, iEA with BMSCs treatment induced a significantly higher functional improvement in locomotor functions and SSEP compared to the BMSCs treatment alone. Additionally, we used molecular biology techniques and showed that BMSCs transplantation with iEA treatment significantly increased the number of surviving BMSCs compared to the BMSCs alone group. In conclusion, our experiment showed that the approach of coupling iEA electric stimulation and BMSCs transplantation remarkably promotes functional improvements in animals with spinal cord injury and holds promising potential to treat spinal cord injury in humans.
机译:脊髓损伤(SCI)是临床上最严重的疾病之一,高残障率和功能缺陷是患者的常见问题。骨髓间充质基质细胞(BMSCs)移植到受损的脊髓中是一种新兴的SCI治疗方法。然而,其应用受到移植细胞存活率低和向神经元分化率低的限制。我们的实验室最近报告说,电刺激(ES)可以显着提高移植的BMSC的存活率,并增加患有脊髓损伤的动物的脊髓功能。在本文中,我们询问植入式电针(iEA)是否可以促进ES治疗对脊髓损伤动物的有益作用。我们表明,仅骨髓间充质干细胞移植可导致动物明显的功能恢复。有趣的是,与单独的BMSCs治疗相比,接受BMSCs治疗的iEA引起运动功能和SSEP的功能明显改善。此外,我们使用了分子生物学技术,结果表明,与单独的BMSCs组相比,采用iEA治疗的BMSCs移植显着增加了存活BMSCs的数量。总之,我们的实验表明,iEA电刺激和BMSCs移植相结合的方法显着促进了脊髓损伤动物的功能改善,并具有治疗人类脊髓损伤的潜力。

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