CRISPR-Cas9基因编辑增强了cuproptosis/chemodynamic/ferroptosis协同癌症治疗的作用
Xiaoyu Wu1, Zijun Bai2, Hui Wang3
1Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China.
Acta pharmaceutica Sinica. B
|September 23, 2024
概括
这项研究引入了一种新型的纳米载体,可以传递铜离子和CRISPR-Cas9来增强癌症细胞死亡. 这种方法可以促进铜的积累,通过cuproptosis,化学动态疗法和ferroptosis改善协同癌症治疗.
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:
- 基于铜的纳米材料通过诱导细胞死亡显示出对癌症治疗的希望.
- 细胞铜稳态限制了基于铜的纳米疗法的有效性.
- 杯,铁和化学动态疗法 (CDT) 是新兴的癌症治疗策略.
研究的目的:
- 开发一种用于增强结直肠癌治疗的新型纳米平台.
- 使用CRISPR-Cas9基因编辑来克服细胞铜限制.
- 通过联合cuproptosis,CDT和ferroptosis实现协同的癌细胞死亡.
主要方法:
- 制造一个瘤微环境响应纳米载体,封装Cu2O和CRISPR-Cas9 RNP.
- 向癌细胞输送铜离子 (Cu+) 和RNP.
- 通过CRISPR-Cas9调解,抑制铜载体ATP7A的发生.
- 诱导cuproptosis,CDT和ferroptosis通过释放的Cu+和增强的铜积累.
主要成果:
- 纳米载体有效地将Cu+和CRISPR-Cas9 RNP输入癌细胞.
- CRISPR-Cas9显著降低了ATP7A的表达,增加了细胞内铜水平.
- 增强的铜积累增强了Cu+诱导的CDT的芬顿类反应.
- 协同诱导cuproptosis,ferroptosis和CDT导致了有效的癌细胞死亡.
结论:
- 开发的纳米平台有效地提高了铜离子在癌细胞中的传递和保留.
- 基因编辑介导的铜积累显著提高了多模式癌症治疗的疗效.
- 这一战略通过结合纳米医学和基因编辑,为结直肠癌治疗提供了一个有希望的新途径.
关键词:
在 ATP7A 中,克里斯普尔-Cas9是什么意思化学动力学 化学动力学这种疾病叫做cuproptosis.有效的铜配送.铁化是铁化的一种.对GSH和pH有反应的协同效应治疗是一种协同效应疗法.更多相关视频
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