用持续充电的水凝微球系统移植活细胞核,以挽救椎间盘退化
Yingchuang Tang1, Kai Zhang1, Hongyou Zhou1
1Department of Orthopedic, First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.
Journal of nanobiotechnology
|November 29, 2023
概括
这项研究开发了一种充电的水凝微球系统,以提高细胞存活率以进行组织再生. 该系统增强细胞活动,并对退化的组织的炎症进行抗击,为椎间盘退化提供了一种新的方法.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 组织工程是组织工程.
背景情况:
- 细胞移植对组织再生有希望,但由于恶劣的微环境而面临挑战.
- 反应性氧物种 (ROS) 和退化的组织中的炎症阻碍了移植细胞的生存和功能.
研究的目的:
- 开发一种新的水凝微球系统,以增强退化的组织中的细胞存活和功能.
- 研究该系统在治疗椎间盘退行症 (IVDD) 的潜力.
主要方法:
- 使用微流体学构建了一个双网络水凝微球 (GelMA/HA-His-Mg2+,GHHM).
- 结合Mg2+与胺功能化氨酸 (HA-His-Mg2+) 和GelMA.
- 将负载的核细胞 (NPCs) 转化为GHHM (GHHM@NPCs) 并对体外和体外模型进行评估.
主要成果:
- GHHM显著增强了NPC的粘附和增殖,创造了一个有利的细胞生长环境.
- GHHM中的Mg2+维持了NPC活性,使他们能够抵消ROS诱导的炎症和衰老.
- 在大鼠IVDD模型中,GHHM@NPCs有效地缓解了细胞核退化,并促进了再生.
结论:
- 使用Mg2+开发了一种新的"保持充电"的水凝微球系统 (GHHM),以增强细胞活动.
- 这种系统有效地保护移植细胞免受退化的椎间盘中恶劣的微环境的影响.
- GHHM@NPCs系统为管理IVDD提供了一个有前途的治疗策略.
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