具有特定抗癌活性的适应性人工离子通道或纳米孔的度驱动进化
Zhiqing Chen1,2, Xiaopan Xie1,2, Chunyan Jia1,2
1State Key Laboratory of Cellular Stress Biology and Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, 361102, China.
Angewandte Chemie (International ed. in English)
|February 29, 2024
概括
研究人员开发了新的人工通道,PN-TPPs,适应形成离子通道或纳米孔. 这些PN-TPP向癌细胞线粒体,以高效率和选择性诱导亡.
科学领域:
- 超分子化学 超分子化学
- 纳米技术 纳米技术
- 癌症生物学 癌症生物学
背景情况:
- 天然陶化物形成适应性蛋白质透通道,这种现象在人工系统中复制得很差.
- 人工离子通道对于理解生物运输和开发新的治疗策略至关重要.
- 针对线粒体的药物为选择性癌症治疗提供了一个有希望的途径.
研究的目的:
- 设计和合成一种新型的适应性人工通道类别,PN-TPPs,灵感来自自然的陶.
- 研究Pn-TPPs在离子通道和纳米孔中的度依赖的自我组装行为.
- 评估PN-TPPs的线粒体向和抗癌疗效,特别是它们诱导细胞亡的能力.
主要方法:
- 用三 (TPP) 组 (Pn-TPPs) 功能化的PEGylated胆酸的合成.
- 在低度下自我组装成化物离子通道和在高度下具有小分子透性的纳米孔的特征.
- 评估线粒体向,膜破坏和诱导癌细胞中的caspase-9介导的亡.
- 对人类肝癌细胞的体外抗癌活性的评估和与多克索鲁比辛的比较.
主要成果:
- Pn-TPP自组装成适应性通道,随着度的增加,从离子通道过渡到纳米孔.
- TPP组促进线粒体向,导致选择性膜穿孔和亡诱导.
- P5-TPP组合显示出强大的抗癌活性对抗肝癌细胞 (IC50 = 3.8 μM),在选择性方面表现优于多克索鲁比.
结论:
- Pn-TPPs代表了一种新型的适应性人工通道类别,具有可调节的自组装特性.
- 度依赖的孔隙形成和线粒体向能力使得有效的癌细胞亡成为可能.
- 作为一种选择性抗癌剂,P5-TPP显示出显著的治疗潜力,需要进一步研究.
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