Summary

外科技术治疗脊髓交付:在哥廷根小型猪演示程序

Published: December 07, 2012
doi:

Summary

短期视觉描述的手术技术和设备用于交付(基因和细胞)治疗脊髓。中的动物,但该技术被证明是完全平移和当前正用于人类应用。

Abstract

这是一个紧凑的可视描述的手术技术和装置,用于提供到脊髓(基因和细胞)疗法的组合。虽然该技术被证明在动物体内,该过程是FDA批准的,目前用于ALS患者的脊髓干细胞移植到。虽然FDA已确认疗效高度特征的啮齿动物模型中证明的原则上的数据,大型动物的使用被认为是关键的,用于验证的组合的外科手术过程中,移动设备,和供人类使用的安全性的最终治疗。的大小,解剖学和一般的脆弱性脊椎和脊椎神经的猪被确认为更好的模型的人。而且从人类的揭露和处理以及封闭伤口在猪脊髓,手术过程中几乎没有区别。我们相信,健康的猪模型是一个关键校准第一步在研究程序安全。

Protocol

1。动物用已批准程序演示本文由埃默里大学实验动物护理和使用委员会(IACUC)。女哥廷根小型猪,体重约15-20公斤。 2。麻醉动物约12小时,在手术前禁食。动物镇静和麻醉诱导肌注氯氨酮(35毫克/千克),乙酰丙嗪(1.1毫克/公斤),与阿托品(0.04毫克/千克)的鸡尾酒。动物的氧和1-3%的异氟醚全身麻醉气管插管和维护。在这一点上…

Representative Results

Tarlov评分 0 瘫痪,无运动 1 能感觉到的强直性在后肢,轻微的运动 2 在后肢的运动,但不能坐或站 3 站立和行走的能力,但共济失调,短期内 4 完全恢复,运动功能正常; ?…

Discussion

尽管人类的7-9所描述的技术进行批准,为了脊髓治疗成功的关键问题仍有待回答。 脊髓耐受性脑实质内注射需要一个严格的理解,使开发疗法的试验性脱髓鞘性,变性,外伤性脊髓病的规划和执行。目前,还没有清晰的认识注射的数量,大型哺乳动物的脊髓可以承受的,没有暂时性和永久性的发病率。同样,注射的间隔可能是影响发病率。此外,宏观的( 例如 ,通风相关?…

Divulgazioni

The authors have nothing to disclose.

Acknowledgements

我们感谢埃默里大学部兽医照顾动物资源的工作人员。资金来源包括:ALS协会,国防部,Neuralstem公司

Materials

Name of the equipment Company Catalogue number Comments (optional)
Spinal Derrick Neuralstem, Inc. Neuralstem, Inc. has purchased an exclusive license to this technology
MINJ-PD Microinjector pump Tritech Research, Inc. Customized for this specific application
Floating Cannula Neuralstem, Inc. Custom-designed for this specific application

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Citazione di questo articolo
Federici, T., Hurtig, C. V., Burks, K. L., Riley, J. P., Krishna, V., Miller, B. A., Sribnick, E. A., Miller, J. H., Grin, N., Lamanna, J. J., Boulis, N. M. Surgical Technique for Spinal Cord Delivery of Therapies: Demonstration of Procedure in Gottingen Minipigs. J. Vis. Exp. (70), e4371, doi:10.3791/4371 (2012).

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