双通道纳米工程:免疫性亡的时空控制和巨细胞表型重编程,以增强抗瘤免疫力
Yunfeng Tang1, Xiangtian Deng2,3, Min Yi2,3
1Head & Neck Oncology Ward, Cancer Center, West China Hospital, Cancer Center, Sichuan University, Chengdu, 610041, China.
Journal of nanobiotechnology
|December 7, 2025
概括
这项研究引入了新的纳米粒子,诱导癌细胞死亡并激活免疫反应. 这种方法增强了抗瘤活性,并改善了固体瘤的免疫疗法.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 癌症研究 癌症研究
背景情况:
- 在免疫细胞死亡 (ICD) 期间释放的损伤相关分子模式 (DAMPs) 对癌症免疫疗法至关重要.
- 调节瘤微环境是提高治疗疗效的关键.
研究的目的:
- 开发用于向癌症治疗和免疫激活的纳米粒子系统.
- 研究化学动力学疗法,光热疗法和代谢调节的联合作用,用于固体瘤治疗.
主要方法:
- 用氨酸 (HA) 功能化FeS-IMQ-MnO2@HA纳米颗粒的制造,用于针对CD44受体.
- 利用低温光热疗法 (LTPTT) 和化学动力疗法 (CDT) 来产生活性氧物种 (ROS) 并诱导ICD.
- 使用MnO2纳米颗粒降低谷氨 (GSH) 水平和硫化 (H2S) 调节瘤细胞代谢.
主要成果:
- 这些纳米颗粒成功诱导了ICD和ROS的产生,在LTPTT和CDT下通过FeS进行介导.
- MnO2纳米颗粒降低了GSH水平,增强了ROS介导的抗瘤作用.
- 瘤代谢的H2S调节促进了与瘤相关的巨细胞中的M1表型转化,促进了免疫治疗.
结论:
- 开发的纳米粒子系统有效地重塑瘤微环境并激活免疫反应.
- 这一策略显示了通过增强免疫细胞死亡和免疫治疗来改善固体瘤治疗的巨大潜力.
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