可溶解的干细胞-混合脂质体具有长期稳定性和高准能力
Tianyuan Zhang1,2,3, Xixi Zheng1,2, Ruyi Lin1
1College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China.
Advanced healthcare materials
|May 23, 2024
概括
结冰干燥中酶体干细胞混合脂质体与三糖保持它们的结构和准能力至少三个月. 这种方法确保了可比的瘤抑制,促进了临床使用的生物模拟纳米车辆稳定性.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 干细胞混合脂质体提供疾病响应的向能力.
- 长期存储稳定性对于临床转换至关重要,但仍未得到充分研究.
- 冷干燥 (溶解) 是一种潜在的方法,可以保存纳米载体的活性.
研究的目的:
- 通过冷干燥研究中酶体干细胞混合脂质体的长期保存.
- 确定最佳的冷干燥条件,以保持脂质体结构和功能.
- 评估储存对准能力和治疗疗效的影响.
主要方法:
- 介酶干细胞混合脂质体的合成.
- 在各种条件下检查冷干燥的可行性.
- 在Tris缓冲体 (pH 7.4) 中在-20°C处预冷,含有10%的三醇.
- 评估脂质体结构,膜蛋白完整性和储存后的CXCR4向.
- 瘤抑制功效的体外和体内评估.
主要成果:
- 最佳的冷干燥条件需要在-20°C的Tris缓冲体 (pH 7.4) 中预冷,含有10%的三醇.
- 这种配方至少保存了三个月的脂质体结构.
- 主要的膜蛋白和CXCR4相关的向能力保持不变.
- 储存的杂交脂质体显示出与新鲜的相似的瘤抑制.
结论:
- 使用三糖的冷干燥有效地保持干细胞混合脂质体的长期活性.
- 这种方法保持了结构完整性,准能力和治疗疗效.
- 这些发现代表了通过改善存储物流来实现这些仿生纳米车辆临床应用的重要一步.
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