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Neurotrophic factors in combinatorial approaches for spinal cord regeneration

机译:脊髓再生组合方法中的神经营养因子

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摘要

Axonal regeneration is inhibited by a plethora of different mechanisms in the adult central nervous system (CNS). While neurotrophic factors have been shown to stimulate axonal growth in numerous animal models of nervous system injury, a lack of suitable growth substrates, an insufficient activation of neuron-intrinsic regenerative programs, and extracellular inhibitors of regeneration limit the efficacy of neurotrophic factor delivery for anatomical and functional recovery after spinal cord injury. Thus, growth-stimulating factors will likely have to be combined with other treatment approaches to tap into the full potential of growth factor therapy for axonal regeneration. In addition, the temporal and spatial distribution of growth factors have to be tightly controlled to achieve biologically active concentrations, to allow for the chemotropic guidance of axons, and to prevent adverse effects related to the widespread distribution of neurotrophic factors. Here, we will review the rationale for combinatorial treatments in axonal regeneration and summarize some recent progress in promoting axonal regeneration in the injured CNS using such approaches.
机译:成人中枢神经系统(CNS)的多种不同机制抑制轴突再生。尽管在许多神经系统损伤的动物模型中都显示出神经营养因子可刺激轴突生长,但缺乏合适的生长底物,神经元内源性再生程序活化不足以及细胞外再生抑制剂限制了神经营养因子在解剖学上的传递效率和脊髓损伤后的功能恢复。因此,可能必须将促进生长的因子与其他治疗方法结合起来,以充分利用生长因子治疗轴突再生的全部潜力。另外,必须严格控制生长因子的时间和空间分布,以实现生物活性浓度,以轴突的化学趋向性指导,并防止与神经营养因子广泛分布有关的不利影响。在这里,我们将回顾轴突再生中联合治疗的基本原理,并总结使用这种方法在促进受损中枢神经系统中轴突再生方面的一些最新进展。

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