在现场自组装的细胞储水凝用于操纵多阶段放射性免疫治疗
Yue Chen1, Qinyi Chen1, Yuanyuan Ma2
1State Key Laboratory of Natural Medicines, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, China.
Nature communications
|January 21, 2026
概括
这项研究引入了一种可注射的水凝,该水凝结合过氧化 (BaO2) 和工程红细胞 (RBC) 来增强癌症放射治疗. 水凝释放氧气和免疫剂,提高治疗效率,减少瘤生长.
科学领域:
- 生物材料科学 生物材料科学
- 癌症免疫疗法癌症免疫疗法
- 放射化学 放射化学是指辐射化学.
背景情况:
- 放射治疗 (RT) 的有效性受到瘤缺氧和复杂的免疫反应的限制.
- 目前的治疗方法很难克服免疫抑制性瘤微环境 (TME).
研究的目的:
- 开发一种可注射的水凝系统,用于增强癌症放射性免疫治疗.
- 为了解决瘤缺氧和调节免疫TME以改善治疗结果.
主要方法:
- 制造一种可注射的水凝,封装氧化物 (BaO2) 和工程红细胞 (RBC).
- 在TME内部的in situ水凝形成,产生氧气并释放治疗剂 (IL-12和抗CTLA-4).
- 评估氧气生成,药物释放动力学和免疫细胞激活,以应对水凝.
主要成果:
- 通过产生氧气,水凝有效地减轻了瘤缺氧.
- 反CTLA-4和IL-12的连续释放激活了多阶段的免疫反应.
- 联合治疗显示出显著的瘤回归和增强的抗瘤免疫力.
结论:
- 在现场自组装的水凝为克服RT电阻提供了一种新的策略.
- 这种可编程放射性免疫疗法方法显示了有效的瘤回归和临床应用的前景.
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