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巨细胞极化状态影响纳米菌细胞分布,但不影响其生物转化或费里丁效应
Uschi M Graham1, Alan K Dozier2, David J Feola3
1Pharmaceutical Sciences Department, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
Nanomaterials (Basel, Switzerland)
|August 26, 2023
概括
巨细胞根据其类型 (M1与M2) 不同地内化纳米. 这两种类型都转化了纳米纤维,并触发了费里生物矿化,这是对纳米颗粒的关键免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 纳米技术纳米技术
- 材料科学 材料科学 材料科学
背景情况:
- 天生的免疫系统,特别是巨细胞,在调节炎症和应对外部威胁方面发挥着至关重要的作用.
- 巨细胞分化为M1 (促炎) 和M2 (抗炎) 现象型,显著影响这些细胞如何与纳米材料相互作用和处理.
- 了解纳米材料-巨细胞相互作用对于纳米医学和纳米毒理学至关重要.
研究的目的:
- 为了研究纳米在极化M1和M2巨细胞中的详细吸收,分布和生物转化.
- 阐明费里生物矿化在细胞对纳米和其他纳米物体反应中的作用.
主要方法:
- 使用高分辨率电子显微镜可视化人类和小鼠M1和M2巨细胞内的纳米细胞.
- 在不同的巨细胞表型中对纳米细胞内部化和细胞内命运进行比较分析.
- 研究生物转化产品和相关的生物分子沉.
主要成果:
- M1和M2巨体表现出不同的纳米细胞内部化模式:M1巨体在等离子体膜附近封存纳米细胞,而M2巨体显示均的细胞质分布.
- 无论是M1和M2巨细胞都将纳米转化为酸纳米针.
- 纳米与费里同时共同沉发生在两种巨细胞类型中,这表明费里生物矿化是细胞对纳米粒子吸收的直接反应.
- 这种费里生物矿化机制也在离子和未极化单细胞和RAW 264.7细胞中观察到.
结论:
- 巨细胞的表型决定了内化纳米细胞的空间分布,而不是其生物转化.
- 费里生物矿化是一种对不同细胞类型和极化状态的纳米粒子和离子吸收的保存细胞反应.
- 评估费里生物矿化对于理解免疫反应对广泛的内化纳米物体,包括粒子,病毒和生物分子的免疫反应至关重要.
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