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Cong Li¹, Yaqi Wu², Sheng Bao³

¹Northwestern Polytechnical University, College of Chemistry and Chemical Engineering, Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi'an 710129, China, 710129, Xi'an, CHINA.

Angewandte Chemie (International ed. in English)

|May 14, 2025

概括

研究人员从超分支聚合物开发了一种仿生质子通道 (H3),模仿自然通道,有效运输质子并选择性杀死癌细胞. 一种变体 (H3-Se) 提供可转氧化转氧化传输.

科学领域:

生物模拟化学是生物模拟化学.
聚合物科学聚合物科学
纳米技术纳米技术
细胞运输机制的细胞运输机制.

背景情况:

自然通道蛋白 (NCP) 促进了选择性膜传输,但很难通过人工方式复制.
在仿生研究中,开发具有类似效率和选择性的人工通道是一个重大挑战.

研究的目的:

创建一个由高分支聚合物 (HBP) 衍生的仿生多路径质子传输系统 (H3).
研究H3.3的质子传输效率,选择性和抗癌性质.
为了探索一个修改的H3变体 (H3-Se) 的刺激反应行为.

主要方法:

通过3 - 乙基 - 3 - ((基甲基) - 乙的单阴性聚合合成H3的合成.
使用补丁实验对质子运输的描述.
癌细胞亡诱导和选择性研究的评估.

主要成果:

H3 证明了高效的质子传输 (γ_H+ = 181 ± 4 pS) 和对其他离子和水的高选择性.
H3诱导的癌细胞亡与低IC₅₀值 (U87MG的0.23μM,B16F10的1.04μM).
通过改变水友性,H3-Se表现出可回氧切换的质子运输.

结论:

由HBP衍生的H3系统在效率和选择性方面成功模仿了自然质子通道.
通过诱导亡,H3显示出作为抗癌治疗剂的显著潜力.
可回氧切换的H3-Se为控制药物输送和响应生物材料提供了新的可能性.

关键词:

癌症治疗治疗癌症治疗超分支聚合物的高分子.人工+运输系统多路径的跨膜运输.氧化还原调节的调节.

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