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血小板衍生的微微细胞调节THP-1单细胞和巨细胞中的细胞因子和脂质介质配置文件

Robert D Foulem¹, Maroua Mbarik¹, Jérémie A Doiron²

¹Department of Chemistry and Biochemistry, Université de Moncton, Canada; New Brunswick Center for Precision Medicine, Moncton, Canada.

Immunology letters

|April 30, 2025

概括

血小板衍生微 (PMVs) 影响免疫细胞的反应. PMVs改变单细胞和巨细胞的炎症特征,影响基于细胞分化状态的细胞因子和脂质介质的产生.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
生物化学生物化学

背景情况:

单细胞分化为巨细胞,通过细胞因子和脂质媒介分泌调节炎症和亲溶解反应.
血小板衍生的微 (PMVs) 与单细胞和巨细胞相互作用,转移生物活性物质,但它们对免疫特征的功能影响尚不清楚.

研究的目的:

研究PMV与人类单细胞和巨细胞相互作用的功能后果.
根据它们的分化状态,确定PMV如何调节这些免疫细胞的炎症概况.

主要方法:

人类THP-1单细胞暴露于PMVs.
细胞分化为M0和M1巨细胞,并分析它们与PMV的相互作用.
脂质介质合成和细胞因子生产在响应PMV和脂多糖刺激时被测量.

主要成果:

PMVs被THP-1单细胞迅速内化,在分化的M0和M1巨细胞中观察到延迟的相互作用.
PMV相互作用增强了脂质介质合成,特别是在M1巨细胞中.
PMVs以细胞状态依赖的方式调节细胞因子的产生,影响IL-10,IL-1β,MCP-1,IL-6和IL-23.

结论:

PMVs选择性调节单细胞和巨细胞的炎症性细胞因子和脂质介质配置文件.
单细胞/巨细胞的分化状态对于确定它们对PMVs的反应至关重要.
在炎症背景下,PMV在细胞间通信和免疫调节中发挥着重要作用.

关键词:

细胞因子 (cytokines) 是一种细胞因子.细胞外微小微粒.炎症炎症是一种炎症.脂质媒介体的作用巨细胞是一个巨细胞.单细胞 (Monocytes) 是一种单细胞.

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