磁电纳米粒子驱动TAF9B+ TH2细胞扩张以缓解炎症
Jia Song1,2,3, Lulu Liu3,4, Ziqi Liu1
1Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing 100081, PR China.
Science advances
|February 11, 2026
概括
覆盖着树突细胞膜的磁电纳米粒子有选择性地向T细胞,增强蛋白质合成并促进II型免疫反应. 这种方法显示了通过恢复免疫平衡来治疗自身免疫性炎症的前景.
科学领域:
- 生物医学工程 生物医学工程
- 免疫学 免疫学 免疫学
- 纳米技术纳米技术
背景情况:
- 受刺激的纳米材料具有免疫调节的潜力,但在协调T细胞反应方面应用有限.
- 开发针对T细胞调节的有针对性的策略对于治疗免疫相关疾病至关重要.
研究的目的:
- 开发一种生物模拟磁电纳米粒子,用于选择性T细胞向和免疫调节.
- 研究纳米粒子介导的T细胞反应增强的机制及其在自身免疫模型中的治疗潜力.
主要方法:
- 生物模拟磁电纳米粒子 (DC@CFO/BFO) 的制造,通过涂层CoFe2O4@BiFeO3与树突细胞膜.
- 在磁场刺激下研究纳米颗粒对核糖体的定位和蛋白质合成的调制.
- 在大肠炎和关节炎的小鼠模型中评估治疗疗效,包括使用TAF9B缺乏T细胞的研究.
主要成果:
- DC@CFO/BFO纳米颗粒选择性地向CD4+T细胞,并通过核糖体调节增强蛋白质合成.
- 这一过程促进了II型免疫反应,其特征是IL-4诱导和TAF9B依赖的转录编程,导致T助手2 (TH2) 细胞的增殖.
- 在小鼠模型中,系统性给药和采用性T细胞转移减轻了炎症并恢复了免疫平衡,有效性取决于TAF9B.
结论:
- 磁电纳米复合材料代表了T细胞工程的强大工具.
- 这项研究突出了通过调节T细胞反应来治疗自身免疫性炎症的转化策略.
- TAF9B在介导磁电纳米复合材料对T细胞的治疗作用方面发挥着关键作用.
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