级联响应硫化释放纳米平台用于协同瘤光热免疫疗法
Junhong Ling1, Zhen Liu1, Hang Wu1
1School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, PR China.
Journal of colloid and interface science
|January 28, 2026
概括
这项研究介绍了一种新型纳米平台 (DCTH),它将铜 (Cu+) 化学动力疗法与硫化气体疗法,光热疗法和免疫调节相结合,用于增强癌症治疗.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 癌症治疗 癌症治疗
背景情况:
- 基于铜 (Cu+) 的化学动力学疗法 (CDT) 面临着由于不稳定性,瘤向性差,和谷氨 (GSH) 封存而导致的局限性.
- 开发先进的纳米平台对于克服这些挑战和提高治疗效率至关重要.
研究的目的:
- 开发一个空间时间响应的纳米平台 (DMOS-Cu2O@TPP-CS@HA,DCTH) 整合多种治疗方式.
- 克服基于Cu+的CDT的局限性,并实现有效的多模式抗瘤疗法.
主要方法:
- 使用Cu2O核心,TPP-CS层,DMOS外和HA外层制造DCTH纳米平台.
- 在体外和体内对DCTH进行瘤向,药物释放,cuproptosis诱导和治疗效果的评估.
- 在瘤微环境 (TME) 中评估纳米平台的免疫调节能力.
主要成果:
- 在TME中,DCTH证明了H2S和Cu+的受控共释放,通过DLAT抑制触发了cuproptosis.
- 该纳米平台表现出高效的瘤细胞吸收,线粒体定位,选择性细胞毒性和逆转TME免疫抑制.
- 在体内研究显示增强瘤向,光热反应,显著的瘤生长抑制和诱导免疫细胞死亡 (ICD).
结论:
- DCTH是一种模块化和智能化的纳米治疗平台,利用金属气体协同作用.
- 这个平台有效地克服了与TME相关的治疗耐药性.
- DCTH实现了具有显著治疗潜力的多式抗瘤疗法.
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