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工程金属有机框架为基础的STING纳米agonists用于PROTAC增强的癌症化学金属免疫治疗
Zhenzhen Chen1, Zhe Feng1, Siyuan Wang1
1State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 13, 2025
概括
一个基于的新型纳米平台结合了化疗,金属免疫疗法和PROTAC表观遗传调制,以克服癌症化学抵抗和免疫逃脱. 这种方法可以增强抗瘤免疫力,并促进瘤回归.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 癌症免疫疗法癌症免疫疗法
背景情况:
- 化学金属免疫疗法看起来很有前途,但由于PD-L1上调,它面临化学抵抗和免疫逃逸等挑战.
- 开发综合治疗策略对于提高癌症治疗疗效至关重要.
研究的目的:
- 开发一个多功能纳米平台,整合化疗,金属免疫疗法和PROTAC介导的表观遗传调制,以改善癌症治疗.
- 为了克服化学抵抗和PD-L1介导的免疫逃避.
主要方法:
- 设计了一个基于的金属有机框架纳米平台 (Mn-CDDP-dBET6@CM).
- 该平台同时提供离子 (Mn2+), (CDDP) 和一个针对BRD4的PROTAC (dBET6).
- 瘤细胞膜被用于涂层,以实现同源向和免疫逃避.
主要成果:
- 该纳米平台有效地激活了STING通路,诱导DNA损伤,并促进线粒体DNA释放.
- 它抑制PD-L1表达,诱导细胞衰老,并增强先天性和适应性免疫反应.
- 在体外和体外研究表明,显著抑制瘤生长,增加树突细胞成熟,增加细胞毒性T细胞透.
结论:
- 多功能纳米平台通过克服化学抵抗和免疫抑制来证明强大的抗瘤疗效.
- 这种方法为下一代化学金属免疫疗法提供了一种多功能战略.
- 综合系统显示了先进癌症治疗模式的潜力.
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