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Updated: Feb 10, 2026

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NIR-II成像引导的纳米平台用于协同作用的线粒体向性热和巨重编程免疫疗法
Di Zhang1,2,3, Xu He3, Kannappan Vinodh4
1Department of Nuclear Medicine, The First Hospital of Shanxi Medical University, Shanxi Medical University, Taiyuan, 030001, China.
Materials today. Bio
|February 9, 2026
概括
这项研究介绍了一种新的纳米平台,它结合了先进的成像,向细胞死亡和免疫细胞重编程来克服"冷"瘤. 这种方法可以增强抗癌免疫力,有效地抑制瘤生长和转移.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 纳米技术 纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 癌症免疫疗法面临着"冷"瘤的挑战,其特点是免疫细胞透率低和免疫性较弱.
- 需要有效的策略来重编程瘤微环境 (TME) 并增强对这些瘤的免疫反应.
研究的目的:
- 开发一个多功能纳米平台,用于协同的TME重编程和精确的图像导向癌症免疫治疗.
- 为了解决当前免疫疗法在治疗免疫冷瘤方面的局限性.
主要方法:
- 集成近红外II (NIR-II) 聚合诱导发射光原体 (AIEgen) 用于成像和光热疗法.
- 纳入一种针对线粒体的隆尼达胺前药物来诱导热和释放危险信号.
- 用冷冲击的M1巨细胞膜 (CSM) 进行涂层,以将瘤相关巨细胞 (TAM) 分化为M1表型.
主要成果:
- 该纳米平台实现了高分辨率NIR-II光和光声学成像,用于瘤可视化.
- 诱导了线粒体向性热,通过释放与危险相关的分子模式来增强瘤免疫性.
- 通过TLR2/MAPK通路,CSM促进了M1 TAM两极分化,减少了TME免疫抑制.
- 在小鼠中,协同治疗增强了细胞毒性T细胞透,逆转了免疫抑制,并抑制了原发性和转移性瘤的生长.
结论:
- 开发的纳米平台提供了一种多功能策略,将NIR-II光异能学,线粒体向性活体灭绝和TAM重编程统一起来.
- 这种方法提供了一种强大而有针对性的方法来克服TME介导的免疫抑制并增强全身抗瘤免疫力.
- 这项研究提出了一种有前途的纳米医学策略,用于治疗免疫学冷瘤并改善癌症免疫治疗结果.
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