Institute of Neuroanatomy and Cell Biology, Hannover Medical School, 30623 Hannover, Germany.
Center for Systems Neuroscience (ZSN) Hannover, 30559 Hannover, Germany.
Cells. 2020 Nov 17;9(11):2497. doi: 10.3390/cells9112497.
Schwann cells play a crucial role in successful peripheral nerve repair and regeneration by supporting both axonal growth and myelination. Schwann cells are therefore a feasible option for cell therapy treatment of peripheral nerve injury. However, sourcing human Schwann cells at quantities required for development beyond research is challenging. Due to their availability, rapid in vitro expansion, survival, and integration within the host tissue, stem cells have attracted considerable attention as candidate cell therapies. Among them, induced pluripotent stem cells (iPSCs) with the associated prospects for personalized treatment are a promising therapy to take the leap from bench to bedside. In this critical review, we firstly focus on the current knowledge of the Schwann cell phenotype in regard to peripheral nerve injury, including crosstalk with the immune system during peripheral nerve regeneration. Then, we review iPSC to Schwann cell derivation protocols and the results from recent in vitro and in vivo studies. We finally conclude with some prospects for the use of iPSCs in clinical settings.
许旺细胞通过支持轴突生长和髓鞘形成,在外周神经修复和再生中起着至关重要的作用。因此,许旺细胞是治疗周围神经损伤的细胞治疗的可行选择。然而,要获得用于研究以外开发所需数量的人许旺细胞是具有挑战性的。由于其可用性、快速的体外扩增、在宿主组织中的存活和整合,干细胞作为候选细胞疗法引起了广泛关注。其中,具有个性化治疗前景的诱导多能干细胞 (iPSC) 是一种很有前途的疗法,可以将研究成果从实验室推向临床。在这篇重要的综述中,我们首先关注许旺细胞表型在外周神经损伤方面的现有知识,包括在周围神经再生过程中与免疫系统的相互作用。然后,我们回顾了 iPSC 向许旺细胞的衍生方案,以及最近的体外和体内研究结果。最后,我们对 iPSC 在临床环境中的应用提出了一些展望。
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