介质细胞流体细胞纳米纤维携带microRNA与神经保护性质,无论老化
Marcia Bastos Convento1, Andréia Silva de Oliveira1, Mirian Aparecida Boim1
1Nephrology Division, Department of Medicine, Federal University of Sao Paulo, Street Borges Lagoa, 783, 6º Floor, Doctors' Building, Sao Paulo - SP - CEP 04038-901, Brazil.
Current aging science
|June 21, 2024
概括
携带microRNA的介质干细胞细胞外囊泡 (MSCs-EV) 显示出对损伤的脏保护作用,无论捐赠细胞的年龄如何. 这突显了它们在纳米医学中治疗损伤的潜力.
科学领域:
- 纳米医学是一种纳米医学.
- 细胞生物学 细胞生物学
- 再生医学是一种再生医学.
背景情况:
- 衰老会影响中细胞流体细胞衍生的细胞外囊泡 (MSCs-EV) 的膜功能.
- 在治疗与年龄有关的毒性方面,MSCs-EV,特别是其miR-26a和siRNA-26a货物的作用尚不清楚.
- 研究MSCs-EV产量和疗效的与年龄相关的变化对于治疗开发至关重要.
研究的目的:
- 评估捐赠细胞年龄对MSCs-EV疗效的影响.
- 评估MSCs-EV向管细胞传递miR-26a和siRNA-26a的能力.
- 在毒性模型中确定老年和年轻MSCs-EV的治疗潜力.
主要方法:
- 在管细胞中,Gentamicin诱导的毒性模型.
- 用表达微RNA-26a或siRNA-26a的MSCs-EV进行治疗.
- 通过使用MTT试验,分析细胞循环标志物通过西方抹杀和细胞增殖.
主要成果:
- 表达microRNA-26a的MSCs-EV在有毒性损伤的管状细胞中表现出显著的脏保护作用,无论EV年龄如何.
- 通过EV介导的siRNA-26a治疗在不同年龄段显示出不那么一致的脏保护作用.
- 毒性管状细胞表现出减少的增殖能力,该能力被携带miR-26a的MSCs-EV.部分恢复.
结论:
- 携带微RNA的介质细胞 stromal 细胞 nanovesicles 具有固有的 nefroprotective 特性.
- 这些微RNA载体囊泡的治疗疗效是保持不管源介质层细胞的衰老.
- MSCs-EV代表了对损伤的有前途的无细胞治疗策略,年龄是miR-26a输送的非限制因素.
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