直接进化纳米疫苗调节扰乱的日间节律,增强癌症免疫疗法
Zi-Yi Han1, Cheng Zhang1, Jia-Xin An1
1Department of Orthopedic Trauma and Microsurgery of Zhongnan Hospital, & Key Laboratory of Biomedical Polymers of Ministry of Education, & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|June 9, 2025
概括
这项研究引入了能恢复瘤的纳米疫苗.
科学领域:
- 免疫学 免疫学 免疫学
- 纳米技术纳米技术
- 时间生物学 时间生物学
背景情况:
- 瘤内循环节律的破坏导致免疫抑制.
- 瘤微环境经常表现出高水平的活性氧物种 (ROS).
- 目前的癌症免疫疗法面临着有效性和复发的挑战.
研究的目的:
- 开发新型纳米疫苗 (Clock-NVs),调节昼夜时钟,用于增强癌症免疫治疗.
- 调查时钟-NVs在恢复昼夜节律和增强抗瘤免疫力的潜力.
- 评估时钟-NVs与现有的癌症疗法相结合的疗效.
主要方法:
- 生物微粒的开发,旨在增强昼夜钟基因表达.
- 使用生物微粒作为生物反应器将ROS转化为氧气,这是一个昼夜增强剂.
- 准HIF-1α-BMAL1轴以恢复瘤细胞中的昼夜节律.
- 在临床前模型中评估时钟-NVs对瘤生长,转移和免疫细胞功能的影响.
主要成果:
- 时钟-NVs通过上调BMAL1表达,成功地恢复了昼夜节律.
- 恢复节奏增强了瘤细胞死亡,树突细胞代谢和抗原呈现.
- 时钟-NVs在耐化疗瘤中显著抑制了瘤生长和转移.
- 与时钟-NVs和采用T细胞疗法的联合治疗导致60%的原发性瘤回归.
- 与时钟-NVs和抗PD-L1的联合治疗实现了100%的瘤复发抑制.
结论:
- 生物进化纳米疫苗 (Clock-NVs) 有效地恢复瘤中被破坏的昼夜节律.
- 时钟-NVs通过放大抗瘤免疫反应来增强癌症免疫疗法.
- 这一策略为临时免疫疗法提供了一个有希望的方法,通过精确地准瘤昼夜基因表达.
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