瘤响应性cuproptosis纳米诱导器实现有效的PANoptosis,用于增强癌症免疫疗法
Kaiqing Yun1,2, Xiaohong Yu3, Shuang Liang1,2
1State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
Theranostics
|September 18, 2025
概括
工程纳米粒子诱导cuproptosis和PANoptosis,增强抗瘤免疫疗法. 这一策略激活了免疫反应,克服了免疫抑制瘤微环境,以强烈抑制瘤生长.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 纳米技术纳米技术
背景情况:
- 调控细胞死亡 (RCD) 诱导是抗瘤免疫疗法的关键策略.
- 瘤微环境 (TME) 的异质性限制了单模RCD诱导的有效性.
- 需要新的策略来激活多个RCD途径,以加强免疫疗法.
研究的目的:
- 为了设计诱导cuproptosis和随后的PANoptosis的纳米粒子.
- 评估这些纳米粒子在重编程TME和增强抗瘤免疫反应方面的有效性.
- 为了研究这些纳米粒子与免疫检查点阻塞疗法的协同作用.
主要方法:
- 开发用于双RCD诱导的Elesclomol-Cu@PDPA纳米颗粒 (PECNP).
- PEC NPs的设计是为了在循环中保持稳定性和在酸性TME中快速解离.
- 评估PECNP诱导cuproptosis,PANoptosis和随后的免疫激活 in vivo的能力.
主要成果:
- PEC NPs成功诱导了cuproptosis,导致瘤细胞中的PANoptosis.
- 激活免疫细胞死亡和刺激全身免疫反应.
- 证明了强大的瘤生长抑制和与免疫检查点阻塞疗法的协同效应.
- 通过促进免疫细胞透来重新编程免疫抑制的TME.
结论:
- PEC NPs提供了一个强大的策略来诱导cuproptosis和PANoptosis,以增强免疫疗法.
- 这种方法通过激活多个RCD通路,有效地提高瘤免疫性.
- 为克服TME在癌症治疗中的局限性提供了新的见解.
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