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异构体驱动的超分子多态化4-胺基调节纳米结构依赖的细胞吸收和细胞毒性

Mintaek Oh¹, Wonpyo Rhee¹, Tianyi Zheng²

¹KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea. yongjukim@korea.ac.kr.

|September 24, 2025

概括

几何同质性显著影响药物的自我组装和抗癌疗效. 4-hydroxytamoxifen (4-OHT) 的 (Z) -同位素形成有效的纳米颗粒,用于增强细胞吸收和细胞毒性,与其 (E) -同位素不同.

科学领域:

药用化学医学化学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

小分子药物的几何同质性传统上与受体结合和代谢稳定性有关.
异构体对超分子行为和生物功能的影响尚未得到充分研究.
这项研究研究了几何异构对药物自我组装和抗癌活性的影响.

研究的目的:

为了研究 (Z) - 和 (E) -4-胺 (4-OHT) 异构体在水性环境中的自我组装.
为了确定异构体特异的超分子组合如何影响抗癌疗效.
为药物性能建立一个双轴模型,考虑分子识别和超分子组织.

主要方法:

合成和表征 (Z) - 和 (E) -4-OHT异构体.
在水溶液中使用光谱和显微镜技术分析自组装行为.
在ER阳性MCF-7细胞中评估细胞吸收,细胞内积累和体外细胞毒性.
计算建模以了解聚合模式.

主要成果:

(Z) -4-OHT形成无形的纳米片组件,具有增强的分散性和细胞吸收.
(E) -4-OHT形成晶体带,细胞内传递有限.
对于 (Z) -和 (E) -4-OHT,分别观察到明显的J型和H型聚合.
(Z) -4 -OHT由于优异的受体亲和力和细胞内积累,显示出显著更高的细胞毒性.

结论:

分子几何学决定了不同的自我组装路径和超分子形态.
自组装的纳米结构极大地影响药物输送和生物疗效.
合理的药物设计应该共同优化异构体治疗剂的受体结合和纳米尺度形态学.

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