双重作用的策略:受伤微环境响应的水凝和外体介导的葡萄糖调节增强了内外糖尿病伤口修复
Shaoxin Tang1, Keru Feng1, Rui Yang1
1The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Bioinspired Engineering and Biomechanics Center (BEBC), School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China.
概括
这项研究提出了糖尿病伤口愈合的双重作用策略,将响应性水凝与外体治疗相结合,以调节血糖并改善伤口环境,以加快愈合.
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:
- 糖尿病伤口中持续的高血糖会产生一种病态的微环境,阻碍愈合.
- 目前的治疗方法往往忽视了血糖水平在糖尿病伤口修复中的关键作用.
研究的目的:
- 开发糖尿病伤口治疗的协同治疗策略.
- 创建一个多功能水凝,响应伤口的微环境.
- 利用外体介导的葡萄糖调节来改善伤口愈合.
主要方法:
- 构建了一个凝-多巴胺 (Gel-DA) 交联的氨酸-甲酸 (HA-PBA) 水凝 (GDHP).
- 装载的化 (CIP·H) 进入水凝 (GDHPC) 进行按需的抗菌释放.
- 在糖尿病小鼠中通过尾静脉注射给人带介质干细胞衍生的外体 (hucMSC-exos).
主要成果:
- 该GDHP水凝显示可注射,自我愈合和粘合性质,缓解氧化应激和炎症,同时促进角质细胞迁移.
- GDHPC水凝表现出对环境有反应的降解和控制释放CIP·H的抗菌活性.
- hucMSC-exos调节胰腺免疫微环境,增强胰岛素分泌并降低血糖水平.
- 与单个治疗相比,联合疗法显著加速了糖尿病小鼠的全厚皮肤伤口愈合,与减少炎症和促进血管新生有关.
结论:
- 结合响应性水凝和外体治疗的协同策略有效地解决了糖尿病伤口愈合.
- 这种方法维持葡萄糖平衡,改善伤口微环境,促进"内外"修复.
- 开发的双重行动策略为糖尿病伤口治疗提供了一个有希望的治疗途径.
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