骨髓间充质干细胞衍生外泌体对脊髓损伤动物治疗作用的系统综述北大核心CSCD

目的系统评价骨髓间充质干细胞(BMSC)来源的外泌体治疗脊髓损伤动物的有效性和安全性。方法从PubMed、Cochrane Library、Web of Science、CNKI、万方数据库中检索自建库至2021年10月BMSC来源的外泌体治疗脊髓损伤的动物研究。由2名研究者独立筛选、提取资料并评价偏倚风险后,采用定性分析方法评估结果。结果共纳入21项研究,包括1342个动物。18项研究选用雄性或雌性Sprague-Dawley大鼠,19项研究大鼠体质量为(200±50)g,损伤部位集中于T9-11脊髓,但具体方式不同。外泌体的类型、使用时间、频率、浓度和剂量等均不相同。结论BMSC来源的外泌体可改善脊髓损伤后运动功能,减少受损组织,抗凋亡,抗炎,减轻血-脊髓屏障通透性,促进轴突和血管生长。仍有待更多高质量研究验证。

Effects of bone marrow mesenchymal stem cells derived exosomes on spinal cord injured animals: a systematic review

Objective To systematically review the efficacy and safety of exosomes derived from bone marrow mesenchymal stem cells (BMSC) on animal models of spinal cord injury. Methods Animal studies about BMSC-derived exosomes for spinal cord injury were retrieved from databases of PubMed, Cochrane Library, Web of Science, CNKI and Wangfang Data, from establishment to October, 2021. Two researchers independently screened and extracted the data, and evaluated the risk of bias. The studies were qualitatively analyzed. Results A total of 21 studies were included, involving 1 342 animals. Male or female Sprague-Dawley rats were selected for 18 studies, and the body mass of the rats was (200±50) g in 19 studies. The injury nodes focused on T_9-11 spinal cord, with various methods. The types, medication time, frequency, concentration and dose of the exosomes were heterogeneous. Conclusions The BMSC-derived exosomes can improve the motor function after spinal cord injury, reduce the damage of spinal cord, resist apoptosis and inflammation, reduce the permeability of blood-spinal cord barrier, and promote the growth of axons and blood vessels. More high-quality studies are needed for further verification.