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开发基于KRP的pH响应药物输送系统,用于固体瘤

Yu Wu¹, Jiahong Pei², Hanzhuo Wang³

¹Department of Oral and Maxillofacial Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangdong Province Clinical Research Center for Child Health, Guangzhou, China.

Translational cancer research

|July 21, 2025

概括

使用细胞透 (CPP) 和多克索鲁 (DOX) 开发了一种新型的响应pH的药物递送系统KRP-Hyd-DOX. 该系统通过改善细胞吸收和向释放来增强药物的疗效并减少副作用.

科学领域:

生物技术是生物技术.
药物输送系统药物输送系统
纳米医学是一种纳米医学.

背景情况:

细胞透 (CPP) 是细胞内药物递送的有效载体.
CPP增强了药物的生物可用性,减少了副作用.
一种新型的多,KRP,作为CPP载体被开发出来.

研究的目的:

通过将KRP与多克索鲁比 (DOX) 联系起来,创建一个响应pH的药物递送系统.
评估新系统的药物释放,细胞透和细胞毒性.
为了将新系统与非pH敏感的对应物和免费的DOX.比较.

主要方法:

通过Fmoc固相合成合成KRP.
DOX通过稳定的胺 (KRP-DOX) 和pH敏感的水 (KRP-Hyd-DOX) 键与KRP结合.
在不同的pH条件和度下评估了药物释放动力学,细胞透和细胞毒性.

主要成果:

在pH 5.0下,KRP-Hyd-DOX的DOX释放量显著增加 (65%),而pH 7.4 (30%) 则显著增加.
KRP-DOX显示了最小的pH依赖释放.
针对MG63细胞,KRP-Hyd-DOX的IC50值 (5.22μM) 比KRP-DOX (7.41μM) 低,表明细胞毒性增加.

结论:

开发的KRP-Hyd-DOX系统是一个响应pH的药物递送平台.
这个系统有效地利用了CPP和DOX的协同效应.
KRP-Hyd-DOX可以提高治疗效果,同时最大限度地减少系统性副作用.

关键词:

在KRP-DOX中使用KRP-DOX.在KRP-Hyd-DOX中使用.骨质肉瘤骨质肉瘤是什么德克索鲁比 (DOX) 是一种

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