基于双重药物载荷的可自适应的凝用于糖尿病感染的伤口愈合
Haojie Qiu1, Jingyan Zhu1, Kaikai Zhang2,3
1Engineering Research Center for Biomedical Materials, Anhui Key Laboratory of Modern Biomanufacturing, School of Life Sciences, Anhui University, Hefei, Anhui 230601, China.
Biomacromolecules
|August 22, 2025
概括
一种新型的基水凝有效治疗糖尿病感染的伤口. 这种双重药物输送系统通过抑制细菌和增强细胞活动来促进愈合,即使在高葡萄糖环境中.
科学领域:
- 生物材料科学
- 复原医学
- 伤口的愈合
背景情况:
- 由于高血糖和细菌存在,糖尿病感染的伤口的自我愈合受损.
- 目前的治疗方法往往无法解决糖尿病伤口复杂的愈合环境.
研究的目的:
- 为增强糖尿病感染伤口愈合开发一种新的基于氨酸的自适应性水凝.
- 创建一个双重药物载荷的水凝系统, 结合利沃素和胰岛素, 以获得协同治疗效果.
主要方法:
- 使用γ-环极 (γCD) 和氨酸之间的宿主-客人相互作用制造HASA水凝.
- 在HASA水凝中封装levofloxacin (LEV) 和胰岛素 (INS),形成HASA@LEV&INS.
- 评估水凝的特性,包括可注射性,形状适应性,酶降解和药物释放动力学.
- 在高葡萄糖条件下评估抗菌活性和细胞活力.
- 对糖尿病感染的伤口进行体内测试,以评估伤口收缩和愈合效率.
主要成果:
- 由于其动态网络结构,HASA水凝表现出良好的注射性和形状适应性.
- 在高血糖的情况下,HASA@LEV&INS水凝表现出可控释放的利沃素和胰岛素,高效的酶降解,强大的抗菌活性和改善的细胞活性.
- 在使用HASA@LEV&INS治疗的糖尿病感染伤口中,体内研究显示,到第14天伤口收缩率为96. 8%.
结论:
- 开发的HASA@LEV&INS水凝是加快糖尿病感染伤口愈合的有希望的治疗策略.
- 动态水凝支架与双重药物输送的结合提供了一种协同方法来克服糖尿病伤口并发症的挑战.
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