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聚介导组装调节梅利丁毒性:中和孔形成毒素与细胞膜的界面亲和力的一种结构-活性策略

Hojin Han¹, Julia C Palchak¹, Johnathan R Pinc¹

¹Department of Chemical and Biological Science and Engineering, United States Military Academy, West Point, New York 10996, United States.

ACS applied materials & interfaces

|August 25, 2025

概括

聚可以减少蜜蜂毒的毒性, 这种分子相互作用提供了一种控制毛孔形成毒素和开发新生物材料的策略.

科学领域:

生物物理
材料科学
毒理学

背景情况:

形成孔隙的药物可以透细胞膜,因此需要控制它们的活动.
蜜蜂毒是形成毛孔的典型毒素,其膜相互作用对于了解细胞损伤至关重要.
控制膜界面上的组合是开发生物材料和抗毒素策略的关键.

研究的目的:

研究梅利丁与各种多之间的分子相互作用.
确定多-梅利丁相互作用的结构-活性关系.
利用小分子开发一种基于材料的控制孔形成活动的策略.

主要方法:

生物物理测量 (例如,结合亲和力,复杂大小).
使用SH-SY5Y细胞进行基于细胞的测定以评估细胞毒性.
了解分子相互作用的第一原理计算建模.

主要成果:

聚类诱导梅利丁的寡合化,与降低的毒性相关.
梅利丁中和程度是由多结合亲和力和复合体大小预测的.
由于有毒的单体梅利被封存,较大的梅利-多组合显著降低了细胞毒性.

结论:

通过分子结合调节组合是一种可行的控制孔形成毒素的策略.
物理化学性质决定了蛋白质毒素的膜相互作用.
这项工作为设计纳米医学界面调节的小分子稳定生物材料提供了框架.

关键词:

生物毒素中和膜接口膜毒素的相互作用形成孔隙的剂结构 - 活动关系

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