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ZnO NPs通过抑制NF-κB和JAK1-STAT1/STAT3通路并减少ROS,减轻RAW264.7巨细胞中LPS诱导的炎症

Hui Tang^1,2, Li Zhang^1,2, Chengchen Deng^2,3

¹Department of Interventional and Vascular Surgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, People's Republic of China.

Journal of inflammation research

|October 15, 2025

概括

氧化纳米颗粒 (ZnO NPs) 通过抑制NF-κB和JAK-STAT等关键信号通路来减少炎症. 这些发现揭示了ZnO NP.

科学领域:

纳米医学和免疫学
细胞和分子生物学细胞和分子生物学

背景情况:

巨细胞驱动的炎症信号是各种疾病的核心.
氧化纳米粒子 (ZnO NPs) 显示出抗炎作用的潜力,但机制尚不清楚.
这项研究探讨了ZnO NP对巨细胞中脂聚糖 (LPS) 诱导的炎症的影响.

研究的目的:

阐明ZnONP的抗炎作用背后的分子机制.
在RAW264.7巨细胞中研究ZnO NP对LPS诱导的炎症途径的调节.

主要方法:

通过SEM和细胞毒性评估对ZNONP大小的表征.
用不同的ZnO NP度对RAW264.7细胞进行治疗,然后进行LPS刺激.
对促炎症 (TNF-α,IL-1β,IL-6,iNOS,COX-2) 和抗炎症 (Arg-1) 因素,氧化 (NO),活性氧物种 (ROS) 和通过qRT-PCR,ELISA,西斑和RNA测序的基因表达的分析.

主要成果:

ZnO NPs显著降低了LPS诱导的NO和促炎性细胞因子的产生,同时增强了Arg-1表达.
RNA测序揭示了2638个不同表达的基因对ZnO NP治疗的反应.
机械上,ZnO NPs抑制了NF-κB激活 (通过减少IκB-α降解和p65转位),并抑制了JAK1-STAT1/3信号,同时减少了ROS的产生.

结论:

ZnO NPs通过向NF-κB和JAK1-STAT1/3通路,有效地减轻巨细胞中LPS诱导的炎症.
减少ROS是促进ZnO NP抗炎作用的另一个关键机制.
这些发现突显了ZnONP在涉及巨细胞失调的炎症性疾病中的治疗潜力.

关键词:

在JAK-STAT信号通道上.通过NF-κB信号通路传递信号.这就是ROSOS ROS.ZnO NPs的使用情况.这是一种炎症性细胞因子.巨细胞是什么?巨细胞是什么?

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