脂质体 - - 人体细胞在全血中相互作用:脂质体设计的影响
Miriam Giambelluca1, Elena Markova2, Claire Louet3
1Nuclear Medicine and Radiation Biology Research Group, Department of Clinical Medicine, Faculty of Health Science, UiT The Arctic University of Norway, Tromsø, Norway; Centre of Molecular Inflammation Research, Department of Cancer Research and Molecular Medicine, Faculty of Medicine and Health Science, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
Nanomedicine : nanotechnology, biology, and medicine
|October 14, 2023
概括
这项研究使用人类全血模型来研究脂质体设计如何影响免疫细胞相互作用. 结果显示,脂质体特征显著影响吸收和免疫反应,与体内数据保持一致.
科学领域:
- 免疫学 免疫学 免疫学
- 纳米医学是一种纳米医学.
- 生物技术是生物技术.
背景情况:
- * 纳米药物的体外研究往往缺乏体内相关性.
- *细胞免疫细胞是纳米治疗操纵的关键目标.
- *需要准确的模型来预测纳米粒子-免疫细胞相互作用.
研究的目的:
- * 评估脂质体与人类免疫细胞的相互作用,使用ex vivo全血检测.
- * 确定脂质体特征 (大小,PEG密度,脂质含量) 如何影响免疫细胞的吸收和反应.
- * 评估人类全血模型对纳米医学研究的有用性.
主要方法:
- *采用了 ex vivo 人体全血检测方法.
- * 系统地改变了脂质体大小,PEG表面密度和脂质组成 (sphingomyelin,ganglioside).
- *分析了中性粒细胞和单细胞的脂质体吸收,并测量了细胞因子的释放.
主要成果:
- * 证明中性粒细胞和单细胞对脂质体的吸收差异,取决于脂质体的设计.
- * 观察到脂质体特征显著影响免疫细胞相互作用.
- *发现脂质体暴露调节了细胞因子释放和细胞反应.
- * 已注意到ex vivo发现与在小鼠和人类发表的体内观察结果之间有密切的对齐.
结论:
- *人类全血测试对于评估纳米粒子-免疫细胞相互作用是有价值的.
- *脂质细胞的设计对于调节免疫细胞吸收和反应至关重要.
- *研究结果为开发具有可预测免疫效应的向纳米药物提供了洞察力.
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