中国神经再生研究(英文版) ›› 2026, Vol. 21 ›› Issue (8): 3696-3705.doi: 10.4103/NRR.NRR-D-25-00371

• 原著:脊髓损伤修复保护与再生 • 上一篇    下一篇

碱性成纤维细胞生长因子缓释系统促进脊髓损伤后的神经发生和组织修复

  

  • 出版日期:2026-08-18 发布日期:2026-04-27

Basic fibroblast growth factor sustained-release system promotes neurogenesis and tissue repair after spinal cord injury

Xuyang Fu1, #, Hongmei Duan1, #, Boya Zhang1, #, Huan Wang1, Yulin Bi1, Miaoxin Yu1, Peng Hao1, Jian Sun2, 3, Dapeng Li1, Yudan Gao1, Wen Zhao1, Xiaoxuan Liu4, 5, *, Zhaoyang Yang1, *, Xiaoguang Li1, 6, *   

  1. 1Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China; 
    2Beijing Key Laboratory of Mental Disorders National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, Beijing, China; 
    3Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China; 
    4Department of Neurology, Peking University Third Hospital, Beijing, China; 
    5Beijing Municipal Key Laboratory of Biomarker and Translational Research in Neurodegenerative Diseases, Beijing, China; 
    6Department of Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
  • Online:2026-08-18 Published:2026-04-27
  • Contact: Xiaoxuan Liu, PhD, Lucyan_liu@bjmu.edu.cn; Zhaoyang Yang, PhD, wack_lily@163.com; Xiaoguang Li, PhD, lxgchina@sina.com.
  • Supported by:
    This study was supported by the National Natural Science Foundation of China, Nos. 82271403 (to XL), 82272171 (to ZY), 31730030 (to XL), 81941011 (to XL), 31971279 (to ZY); and the Natural Science Foundation of Beijing, No. 7222004 (to HD).

摘要: 脊髓损伤常伴有神经元的显著丧失;而细胞替代疗法可通过替换死亡神经元来改善运动和感觉功能障碍。由于内源性神经发生是细胞替代的重要来源,因此,刺激内源性神经发生是治疗脊髓损伤的一种可行方法。此次实验开发了一种神经发生的强效诱导剂碱性成纤维生长因子-壳聚糖缓释系统以增强脊髓损伤的组织修复。实验从新生大鼠脊髓中分离神经干细胞,并使用单细胞RNA测序来追踪离体培养条件下完整的神经发生过程。结果显示神经干细胞在碱性成纤维细胞生长因子-壳聚糖作用下从静止状态向激活状态转变,并分化为神经元前体细胞和未成熟神经元。体外实验表明,碱性成纤维细胞生长因子-壳聚糖可促进神经干细胞的增殖以及神经元的生成。体内实验证实了其对脊髓损伤的治疗效果,表明其增强了神经发生和组织修复。


https://orcid.org/0009-0009-8773-6072 (Xuyang Fu); 

https://orcid.org/0000-0003-4021-8744 (Xiaoxuan Liu); 

https://orcid.org/0000-0001-8313-6998 (Zhaoyang Yang);

https://orcid.org/0000-0002-2566-7907 (Xiaoguang Li)

关键词: 碱性成纤维细胞生长因子, 壳聚糖, 电生理学, 内源性再生, 微环境调节, 神经干细胞, 神经发生, 单细胞RNA测序, 脊髓损伤, 缓释系统, 组织修复

Abstract: Spinal cord injury is accompanied by a substantial loss of neurons. Cell replacement therapy improves motor and sensory dysfunction by replacing dead neurons, and endogenous neurogenesis is an important cell replacement source. Stimulating endogenous neurogenesis is therefore a viable approach for treating spinal cord injury. Given that basic fibroblast growth factor is a potent inducer of neurogenesis, we developed a sustained-release system of basic fibroblast growth factor-chitosan to enhance tissue repair in spinal cord injury. In the present study, we isolated neural stem cells from the spinal cords of neonatal rats and used single-cell RNA sequencing to trace the complete process of neurogenesis under ex vivo culture conditions. Under the influence of basic fibroblast growth factor-chitosan, neural stem cells were able to transition from a quiescent state to an activated state and subsequently differentiate into neuronal precursor cells and immature neurons. Additionally, basic fibroblast growth factor-chitosan significantly enhanced neural stem cell proliferation in vitro and promoted neuronal generation. Subsequent in vivo experiments confirmed the therapeutic efficacy of basic fibroblast growth factor-chitosan in spinal cord injury, demonstrating enhanced neurogenesis and tissue repair. 

Key words: basic fibroblast growth factor, chitosan, electrophysiology, endogenous regeneration, microenvironment modulation, neural stem cell, neurogenesis, single-cell RNA sequencing, spinal cord injury, sustained-release system, tissue repair