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来自Chaperone的铜(I) 结合的纳米纤维破坏癌细胞中的铜恒温
M T Jeena1, Julian Link1, Jian Zhang1
1Max-Planck-Institut für Polymerforschung, Ackermannweg 10, 55128, Mainz, Germany.
Angewandte Chemie (International ed. in English)
|October 24, 2024
概括
研究人员开发了一种新,可以自组装成纳米纤维,向癌细胞中的铜 (Cu +) 稳态. 这种方法破坏了癌细胞的新陈代谢,诱导了编程细胞死亡,为癌症治疗提供了新的治疗策略.
科学领域:
- 生物化学 生化学
- 纳米技术 纳米技术
- 癌症生物学 癌症生物学
背景情况:
- 铜 (Cu+) 对细胞代谢至关重要,其失调与癌症进展有关.
- 在癌症中准铜稳态是具有挑战性的,因为小分子化剂的结合亲和力很低.
- 细胞内铜伴侣体对Cu+具有很高的亲和力和选择性.
研究的目的:
- 开发一种灵感来自铜伴侣的超分子策略,以破坏癌细胞中的铜恒温.
- 为了研究一种自我组装的的治疗潜力,针对癌症中的铜离子.
主要方法:
- 设计和合成具有Cu+结合基因 (MTCGGC) 的 (Nap-FFMTCGGCR).
- 研究的自我组装到癌细胞内的纳米纤维.
- 对的细胞毒性,依赖铜的酶活性 (SOD1) 和在癌细胞中诱导氧化应激的评估.
主要成果:
- 可以自组合成具有高亲和力和对Cu+的选择性的纳米纤维.
- 纳普-FFMTCGGCR对三阴性乳腺癌细胞 (MDA-MB-231) 具有显著的细胞毒性.
- 该损害了依赖铜的超氧化物脱酶1 (SOD1) 活性,并诱导氧化应激,对正常细胞的影响最小.
结论:
- 一种利用自我组装和陪伴剂启发的铜结合的超分子方法可以有效地破坏癌细胞铜恒温.
- 该战略通过利用金属离子失调来开发向癌症治疗的有希望的新途径.
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