一个自和可追踪的心脏贴片利用费鲁莫西托尔进行时空治疗交付
Mei Li1,2, Yiyi Liu1, Bin Huang1
1Key Laboratory for Bio-Electromagnetic Environment and Advanced Medical Theranostics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211166, China.
ACS nano
|January 16, 2024
概括
工程化介质干细胞 (MSC) 片使用ferumoxytol来增强迁移到受损的心脏组织. 这一策略改善了心脏再生,并允许进行非侵入性跟踪,为心肌梗塞治疗提供了有前途的方法.
科学领域:
- 生物医学工程 生物医学工程
- 再生医学是一种再生医学.
- 心血管研究研究心血管研究
背景情况:
- 介质细胞干细胞 (MSC) 补丁显示出对心肌梗塞 (MI) 治疗的潜力.
- 胸膜上MSC保留的有限程度阻碍了治疗疗效和持续时间.
- 需要新的策略来改善MSC移植和心肌梗塞的持久性.
研究的目的:
- 为了设计一个无支架的MSC板,增强迁移到心肌梗塞中.
- 研究ferumoxytol诱导的细胞内缺氧在促进MSC化学作用中的作用.
- 在大鼠MI模型中评估ferumoxytol修饰的MSCs的治疗潜力和非侵入性跟踪.
主要方法:
- 没有脚手架的MSC板被设计出来.
- 费鲁莫西托尔用于诱导持续的细胞内缺氧,并稳定缺氧诱导的因子-1α.
- 评估了MSC迁移,集成,持久性和膜因子递送在老鼠急性MI模型中.
- 非侵入性MRI用于跟踪植入的MSCs.
主要成果:
- 工程MSC纸张表明固有的迁移到心肌梗塞.
- 费鲁莫西托尔内细胞形成持续的细胞内缺氧,上调CXC化学受体,促进MSC化学反应.
- MSCs集成到左心室前壁的2/3和持续至少28天.
- 通过MSC增强心脏再生和功能.
- 费鲁莫西托尔促进了MSC的非侵入性MRI跟踪.
结论:
- 费鲁莫西托尔介导的细胞内缺氧是一种可行的策略,可以增强MSC迁移和在心脏梗塞中保持.
- 这种方法促进心脏再生和功能,通过使持续的膜因子递送.
- 使用ferumoxytol可以进行MSC的非侵入性监测,从而促进临床转化.
- 这一战略在改善心肌梗塞治疗方面具有显著的前景.
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