中国神经再生研究(英文版) ›› 2026, Vol. 21 ›› Issue (3): 1162-1171.doi: 10.4103/NRR.NRR-D-24-00363

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

人源性神经干细胞移植修复神经环路并恢复严重脑卒中损伤大脑的神经功能

  

  • 出版日期:2026-03-15 发布日期:2025-07-05

Transplantation of human neural stem cells repairs neural circuits and restores neurological function in the stroke-injured brain

Peipei Wang1 , Peng Liu1 , Yingying Ding1 , Guirong Zhang2 , Nan Wang1 , Xiaodong Sun1 , Mingyue Li2 , Mo Li1 , Xinjie Bao3, *, Xiaowei Chen1, *   

  1. 1 Beijing Yinfeng Dingcheng Biological Engineering Technology Co., Ltd., Beijing, China;  2 Yinfeng Biological Group., Ltd., Jinan, Shandong Province, China;  3 Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
  • Online:2026-03-15 Published:2025-07-05
  • Contact: Xinjie Bao, MD, xinjieabao@163.com; Xiaowei Chen, bjyfcxw@163.com.

摘要:

外源性神经干细胞移植已成为治疗脑卒中最有前景的方法之一。目前的研究表明,大多数缺血再灌注模型大鼠在损伤后可以自发恢复,这限制了观察长期行为恢复研究的可能性。在此,实验以缺血时间长达150分钟、12周时仍有严重行为障碍的严重脑卒中大鼠模型为基础,探讨了人源性神经干细胞移植对严重脑卒中后长期神经恢复和修复受损神经环路的效果。在移植时间上,选择了脑卒中后7天作为最佳时间点,观察到人源性神经干细胞移植不仅促进了长达12周的长期功能恢复,还提供了长达16周的功能性神经元分化的电生理证据。此外,还确认了从宿主到移植神经元的突触输入随时间推移长达24周。人源性神经干细胞(hNSCs)移植后2周出现明显的功能恢复,并且改善效果持续超过3个月,表明人源性神经干细胞在移植后早期即可发挥作用,并可能与其分泌的营养因子相关。进一步研究证实,外源性人源性神经干细胞移植通过调节促炎和抗炎因子的表达,促进了内源性血管生成、移植细胞的存活以及改善了炎症微环境。以上结果证实,人源性神经干细胞对严重脑卒中后神经系统恢复的有长期影响,可提高干细胞修复脑卒中患者受损神经环路的可能性,说明人源性神经干细胞有治疗严重脑卒中大脑的潜力。

https://orcid.org/0000-0003-2117-7692 (Xinjie Bao); https://orcid.org/0000-0003-4810-3925 (Xiaowei Chen)

关键词: 行为恢复, 神经修复, 电生理特性, 功能整合, 人类神经干细胞移植, 严重脑卒中, 突触追踪

Abstract: Exogenous neural stem cell transplantation has become one of the most promising treatment methods for chronic stroke. Recent studies have shown that most ischemia-reperfusion model rats recover spontaneously after injury, which limits the ability to observe long-term behavioral recovery. Here, we used a severe stroke rat model with 150 minutes of ischemia, which produced severe behavioral deficiencies that persisted at 12 weeks, to study the therapeutic effect of neural stem cells on neural restoration in chronic stroke. Our study showed that stroke model rats treated with human neural stem cells had long-term sustained recovery of motor function, reduced infarction volume, long-term human neural stem cell survival, and improved local inflammatory environment and angiogenesis. We also demonstrated that transplanted human neural stem cells differentiated into mature neurons in vivo, formed stable functional synaptic connections with host neurons, and exhibited the electrophysiological properties of functional mature neurons, indicating that they replaced the damaged host neurons. The findings showed that human fetal-derived neural stem cells had long-term effects for neurological recovery in a model of severe stroke, which suggests that human neural stem cells-based therapy may be effective for repairing damaged neural circuits in stroke patients.

Key words: behavioral recovery, circuit repair, electrophysiological properties, functional integration, human neural stem cell transplantation, infarction volume, stroke, synaptic tracing