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含有细胞内蛋白质的纳米粒子调节中性粒细胞的功能和表型异质性

Leonore Raudszus¹, Farbod Bahreini¹, Susanne Allan²

¹Institute of Anatomy, University of Luebeck, Luebeck, Germany.

Frontiers in immunology

|February 6, 2025

概括

细胞衍生的纳米粒子 (CDNP) 可以改变中性粒细胞的功能. 这些CDNP通过微调CD11b和CD80表达来调节中性粒细胞的行为,影响免疫反应而不触发经典的效应器功能.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学

背景情况:

中性粒细胞是主要的免疫细胞,被招募到感染和受伤的部位.
失调的中性粒细胞功能会导致败血症和自身免疫性疾病.
中性粒细胞的异质性表明,除了最初的炎症反应之外还有其他的作用.

研究的目的:

研究细胞衍生纳米颗粒 (CDNP) 在调节中性粒细胞表型和功能的作用.
测试外细胞内细胞成分影响中性粒细胞异质性的假设.

主要方法:

鼠骨髓中性粒细胞 (BMN) 用CDNP进行培养.
分析了中性细胞激活,效应器功能,细胞因子分泌和细胞死亡途径.
评估了表面标记物 (CD11b,CD80,CD54) 和迁移反应的表达.

主要成果:

CDNP诱导过渡性中性粒细胞激活与增加的CD11b表达,但不是经典的效应器功能.
CDNP促进了IL-10的分泌,并将PMA诱导的细胞死亡转移到细胞亡.
摄入CDNP的中性粒细胞显示CD54表达增加,迁移受损,LPS反应减少.

结论:

细胞衍生纳米粒子 (CDNP) 是调节中性粒细胞行为的生物材料.
CDNP对CD11b和CD80的中性粒细胞表达进行微调,从而影响免疫反应.
中性粒细胞的异质性可能是由暴露于细胞外细胞内细胞成分 (如CDNP) 驱动的.

关键词:

来自细胞的纳米粒子.与损伤相关的分子模式异质性的异质性细胞内含量细胞内含量中性粒细胞中性粒细胞.解决方案的解决方案解决方案的解决方案.

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