在Zwitterion溶液中冷保存期间的细胞损伤机制及其通过DMSO减轻的缓解
Takeru Ishizaki1, Daisuke Tanaka2, Kojiro Ishibashi3
1Faculty of Biological Science and Technology, Institute of Science and Engineering, Kanazawa University, Kanazawa 920-1192, Japan.
The journal of physical chemistry. B
|April 13, 2024
概括
兹维特里昂作为冷保护剂表现有前途,但由于透压力,细胞损伤发生. 添加二甲基硫氧化物 (DMSO) 减轻了这种情况,改善了冷保存,特别是细胞球体.
科学领域:
- 低温生物学 低温生物学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 兹维特里昂正在成为新型冷保护剂.
- 一些特定的细胞类型仅仅使用zwitterion溶液就表现出有限的冷保存成功.
- 化压后结度被确定为细胞损伤的原因.
研究的目的:
- 调查基于zwitterion的冷保存中细胞损伤的原因.
- 阐明二甲基硫氧化物 (DMSO) 增强冷保护作用的机制.
- 确定与商业冷保护剂相比,zwiterion/DMSO溶液的疗效.
主要方法:
- 用不同的溶液冷保存后细胞活力的比较分析.
- 在结度期间评估透压力变化.
- 研究DMSO对透压和细胞膜完整性的影响.
主要成果:
- 细胞损伤归因于结度后的透压.
- 与商业冷保护剂相比,特/DMSO水溶液显示出更好的冷保护作用.
- 甲基二硫氧化物 (DMSO) 缓解了透压,显著改善了细胞冷保存,包括细胞球体.
结论:
- 化压后结度是限制zwitterion冷保护的关键因素.
- 甲基二硫氧化物 (DMSO) 有效地减轻了透应激,增强了冷保存结果.
- 这些发现为冷保存具有挑战性的细胞类型,包括球形细胞提供了新的见解.
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