接近红外刺激的敏感水凝促进细胞迁移,加速糖尿病伤口愈合
Weijing Zhao1, Lei Qiang2, Changru Zhang3
1Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai 200233, China.
ACS applied materials & interfaces
|September 13, 2024
概括
一种新型的近红外 (NIR) 响应的水凝敷料促进糖尿病伤口愈合. 这种包裹利用机械收缩和药物输送来增强细胞迁移和血管形成,以获得更好的结果.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 糖尿病伤口愈合,包括糖尿病足,具有重大临床挑战,死亡率和发病率高.
- 传统的伤口带缺乏活性调制,限制了它们在促进复杂的愈合过程中的有效性.
- 需要有效的策略来增强细胞迁移,血管化和糖尿病伤口的整体组织修复.
研究的目的:
- 开发一种新型的近红外 (NIR) 刺激响应复合水凝敷料,用于增强糖尿病伤口愈合.
- 为了研究机械收缩和上皮-介质细胞过渡 (EMT) 诱导的协同效应,以改善伤口关闭.
- 评估通过NIR照射对林格利普丁 (LIN) 的受控释放,以获得生物刺激和治疗益处.
主要方法:
- 制造一种基于甲基烯酸凝的复合水凝,其中包含N-异烯酸胺和聚多巴胺纳米颗粒,具有热敏和光热性能.
- 将林加利普丁 (LIN) 装入水凝中,通过NIR激光照射调节药物释放.
- 在全厚皮肤缺陷模型中评估水凝的性能,评估在NIR刺激下伤口关闭率.
主要成果:
- 开发的复合水凝证明了NIR触发的按需收缩和受控的LIN释放,利用热诱导的sol-gel过渡.
- 释放的LIN通过激活EMT有效促进细胞迁移,并增强血管生成,这对于组织再生至关重要.
- 与对照组相比,LIN加载的复合水凝与NIR辐射在体内模型中表现出最高的伤口关闭率.
结论:
- 开发的NIR响应复合水凝是促进糖尿病伤口愈合的有希望的平台.
- 机械收缩和向药物输送的协同组合为临床应用提供了一个可行的策略.
- 这种创新的包裹具有显著的潜力,可以改善患者在治疗复杂的糖尿病伤口的治疗结果.
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