光会在代谢上重编程CD8+ T细胞,以增强刺激驱动的瘤根除和预防转移
Asmita Banstola1, Shilin Gao1, Zhengkung Zhang1
1Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, 50 Blossom Street, Boston, MA, 02114, USA.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 23, 2025
概括
将低级光疗与纳米级STING激动剂相结合,可以增强抗瘤免疫力. 这种双重方法克服了瘤微环境的抑制,导致持久的免疫反应和预防转移.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物技术是生物技术.
背景情况:
- 免疫疗法在固体瘤中面临挑战,原因是T细胞透不良和抑制性瘤微环境.
- 增强免疫激活和代谢健康对于持久的抗瘤免疫是至关重要的.
研究的目的:
- 研究一种双重策略,结合低水平光 (LLL) 疗法和纳米级刺激干扰素基因 (STING) 激动剂 (nanoSTING@Mn),以提高免疫疗法的疗效.
- 为了增强免疫激活,代谢健康,并建立持久的瘤免疫力对T细胞淋巴瘤.
主要方法:
- 使用ADU-S100,Mn2+和生物仿真脂质体来激活cGAS-STING通路,开发了nanoSTING@Mn.
- 应用LLL治疗来重编程瘤透的CD8+ T和自然杀手细胞中的线粒体代谢.
- 利用单细胞RNA测序来分析T细胞群和基因表达.
主要成果:
- 纳米STING@Mn强烈激活了cGAS-STING通路,诱导了I型干扰素,并促进了淋巴细胞透,使单细胞偏向到M1巨细胞.
- LLL疗法恢复了CD8+ T和自然杀手细胞的耐用性,从而完全消除了局部瘤.
- 组合疗法扩大了 CD8+ T 细胞子集,具有原始细胞耗尽的特征,增强了增殖和细胞毒性.
结论:
- LLL疗法和nanoSTING@Mn的协同方法通过克服瘤微环境抑制来提高免疫疗法的有效性.
- 内鼻纳米STING@Mn输送和LLL治疗建立了全身抗瘤免疫力和长期保护对转移.
- 这个可扩展的平台重新定义了基于免疫的转移预防策略.
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