中国神经再生研究(英文版) ›› 2015, Vol. 10 ›› Issue (9): 1395-1396.doi: 10.4103/1673-5374.165504

• 观点:脊髓损伤修复保护与再生 • 上一篇    下一篇

嗅鞘细胞修复脊髓损伤:存在亚群差异?

  

  • 收稿日期:2015-08-11 出版日期:2015-09-28 发布日期:2015-09-28

Olfactory ensheathing cells for spinal cord repair: crucial differences between subpopulations of the glia

Jenny A.K. Ekberg, James A. St John   

  1. Eskitis Institute for Drug Discovery, Griffith University, Brisbane, Queensland, Australia (Ekberg JA, St John JA)
    School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia (Ekberg JA)
  • Received:2015-08-11 Online:2015-09-28 Published:2015-09-28
  • Contact: James A. St John, Ph.D., j.stjohn@griffith.edu.au.
  • Supported by:

    This work was supported by a Perry Cross Spinal Research Foundation grant to JSJ and an Australian Research Council Discovery Grant DP150104495 to JE and JSJ.  

摘要:

嗅鞘细胞移植是修复脊髓损伤的可行方法吗?澳大利亚格里菲斯大学Eskitis药物研究所干细胞研制中心James St John教授最近的临床试验表明,一位接受纯化的嗅鞘细胞移植脊髓损伤瘫痪患者恢复了部分功能;在另一组临床试验中,接受嗅粘膜固有层移植的患者也恢复了一些运动和感觉功能,这些研究表明这种疗法可能是一个成功的方法。然而,如何提高嗅鞘细胞的纯化率,并结合生长因子,打破抑制微环境,利用神经桥和先进的物理疗法等提高轴突生长是研究的热点。主要嗅觉系统及辅助嗅觉系统具体不同的分化能力。为了实现更深刻的理解嗅鞘细胞的治疗潜力,需要对嗅鞘细胞不同亚群进行特定的纯化方法,以期实现在脊髓损伤模型中取得一致的结果。

Abstract:

The therapeutic potential for OECs to repair the injured spinal cord is encouraging, however to clarify the efficacy of the therapy it is important that uniform and consistent purity of OECs are obtained. Considering that OECs from the peripheral nerve and from the olfactory bulb have distinctly different behavioural characteristics (Windus et al., 2010) it is clear that the different subpopulations can exert varying effects. When the potential inclusion of accessory OECs is also considered in animal models of spinal cord repair, their differing capacity for phagocytosis of axon debris will introduce another variable that will likely produce variable outcomes and confound the analysis of the therapeutic effect of OECs. Therefore, in order to achieve a more thorough understanding of the therapeutic potential of OECs and to achieve consistent outcomes in spinal injury models, it is crucial that strategies are developed to optimise the purification of the different subpopulations of OECs. As the accessory olfactory nerve bundles project along the septum and medial surfaces of the olfactory bulb, one simple strategy to minimise the potential contamination by the accessory OECs is to avoid harvesting cells from the septum/medial nerve fibre layer and instead harvest cells from the turbinates and lateral margins of the olfactory bulb. By improving the purity of the OEC preparations, we are likely to achieve more consistent outcomes in animal spinal injury models.