不硫化的纳米诱导器中断了瘤的代谢特权,以促进持续的免疫治疗
Yapeng Xu1, Xiaoqi Ming1, Jinxiu Qi1
1Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
ACS nano
|August 11, 2025
概括
这项研究引入了一种新型纳米诱导剂,可以选择性地触发癌细胞中的二硫化,重编程瘤代谢以激活抗瘤免疫力并防止复发. 这种方法为代谢驱动的癌症免疫治疗提供了一个新的策略.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 纳米技术 纳米技术
- 代谢工程是代谢工程.
背景情况:
- 瘤的代谢重编程推动了癌症的生长和免疫逃避.
- 向瘤代谢在治疗上是有前途的,但由于选择性问题而具有挑战性.
- 不硫化,一个调节的细胞死亡途径,提供了潜在的代谢干扰,但其免疫调节作用是未知的.
研究的目的:
- 为了探索dissulfidptosis的免疫调节潜力.
- 开发一种向的纳米诱导器,用于在三阴性乳腺癌中选择性诱导二硫化.
- 调查二硫化诱导在逆转瘤微环境和抑制瘤生长方面的治疗疗效.
主要方法:
- 构建一个癌细胞膜伪装的纳米平台 (CYBC NPs),同时载有囊和GLUT1抑制剂BAY-876.
- 在三阴性乳腺癌细胞中通过阻断葡萄糖吸收和补充囊来选择性诱导二硫化.
- 评估代谢流变化,免疫细胞死亡,免疫细胞激活 (树突细胞,巨细胞,T淋巴细胞) 和体内瘤抑制.
主要成果:
- CYBC NPs成功诱导了二硫化,导致细胞骨崩并改变了瘤代谢流.
- 通过CYBCNP的代谢干扰促进了免疫细胞的成熟和激活,扭转了免疫抑制性瘤微环境.
- 用CYBCNP治疗引起了强大的,未耗尽的抗瘤免疫力,产生了持久的免疫记忆,并预防了瘤复发和转移.
结论:
- 不硫化可以有效地作为一个独立的免疫治疗策略来实施.
- 由代谢驱动的癌症免疫疗法可以通过利用dissulfidptosis来推进.
- 开发的纳米诱导器提供了一个有前途的方法,用于针对性癌症治疗,具有持久的免疫记忆.
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