在创伤性中枢神经系统疾病中治疗介质干细胞衍生细胞外囊泡:系统性审查和元分析
Zhelun Yang1, Zeyan Liang1, Jian Rao1
1Department of Neurosurgery, Fujian Medical University Union Hospital, Fuzhou, Fujian Province, China.
Neural regeneration research
|June 7, 2023
概括
介质细胞干细胞衍生的细胞外囊泡 (MSC-EVs) 显示出治疗创伤性中枢神经系统损伤的前景. 这项元分析发现,MSC-EV在脊髓损伤和创伤性脑损伤模型中神经恢复方面显著改善了运动功能.
科学领域:
- 再生医学是一种再生医学.
- 神经科学是一个神经科学.
- 生物技术是生物技术.
背景情况:
- 创伤性中枢神经系统疾病带来了重大治疗挑战.
- 介细胞干细胞衍生的细胞外囊泡 (MSC-EVs) 正成为一种强大的非细胞治疗策略.
- 临床前证据表明MSC-EV的疗效,需要进行全面的评估.
研究的目的:
- 在创伤性中枢神经系统疾病的临床前模型中对MSC-EVs的疗效进行元分析.
- 确定影响MSC-EV治疗效果的因素,包括细胞源,隔离方法和施用途径.
主要方法:
- 系统地搜索PubMed,科学网,科克伦图书馆和奥维德-埃姆巴斯的临床前研究,直到2022年4月1日.
- 包括60项研究,重点关注脊髓损伤 (n=52) 和创伤性脑损伤 (n=8) 的MSC-EV.
- 利用SYRCLE的偏差风险工具并进行元分析和子组分析.
主要成果:
- 在脊髓损伤模型中,MSC-EV治疗显著促进了运动功能的恢复 (例如,大鼠BBB分数:SMD=2.36) 和创伤性脑损伤模型中的神经恢复 (例如,mNSS:SMD=-4.48).
- 异种MSC-EV的疗效比异种MSC-EV的疗效更高.
- 超过离心法与密度梯度超离心法相结合,产生了更有效的EVs. 静脉注射和100微克的剂量显示出更好的结果.
结论:
- 介质细胞干细胞衍生的细胞外囊是促进中枢神经系统创伤中运动和神经系统恢复的有希望的治疗剂.
- 特定的MSC-EV特征,隔离技术和给药参数可以影响治疗结果.
- 对优化MSC-EV疗法的进一步研究是必要的.
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