来自带组织的人类介质干细胞的化保存
Nuria Izaguirre-Pérez1, Gertrudis Ligero1, Paula Alba Aguilar-Solana1
1Coordinating Node, Andalusian Public Health System Biobank, Granada, Spain.
Biopreservation and biobanking
|December 26, 2024
概括
三糖 (TRE) 为冷保存人类带衍生中干细胞 (UC-MSCs) 提供一种无毒的替代品. 虽然基于TRE的解决方案的恢复率低于DMSO,但它们保留了细胞功能和再生医学的分化潜力.
科学领域:
- 干细胞生物学 干细胞生物学
- 低温生物学 低温生物学
- 再生医学是一种再生医学.
背景情况:
- 人类介质干细胞 (hMSCs) 的低温储存对于再生医学至关重要.
- 目前的冷保存使用有毒的二甲基硫氧化物 (DMSO),限制了临床使用.
- 需要使用无毒,有效的冷保护剂 (CPA) 来长期储存hMSC.
研究的目的:
- 评估一种基于三糖 (TRE) 的溶液作为一种非有毒的CPA,用于冷保存人类带衍生的MSC (UC-MSC).
- 与DMSO相比,评估TRE冷保存的UC-MSC的可行性,功能性和差异化潜力.
主要方法:
- 使用不同度的TRE单独或与乙烯糖醇 (EG) 结冷保存UC-MSCs.
- 在解后评估细胞活力,身份,染色体稳定性,增殖,迁移和压力基因表达.
- 评估骨质原,脂肪原和体原的分化能力.
主要成果:
- 基于TRE的溶液产生的细胞恢复率低于DMSO,但保持良好的功能性质.
- 在0.5M TRE + 10% EG的情况下,可以实现最佳恢复,而不会影响差异化能力.
- 与DMSO相比,TRE冷保存没有增加压力基因表达,并且支持了第二个冷解周期.
结论:
- 三糖 (TRE) 与乙烯基醇 (EG) 结合,为DMSO提供了一个可行的,低成本的,无毒的替代品,用于冷保存UC-MSCs.
- 基于TRE的冷保存保持了干细胞的基本特征,支持其潜在的临床应用.
- 这种三醇溶液可以取代DMSO基试剂,用于长期储存hMSCs.
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