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时空调节的多蛋白涂层用于加速慢性伤口的愈合

Linhua Li¹, Qingyin Li², Chunle Zhang¹

¹Department of Nephrology, Institute of Kidney Diseases, West China Hospital of Sichuan University, Chengdu 610041, China. fupinghx@scu.edu.cn.

Journal of materials chemistry. B

|June 30, 2025

概括

一种新的多活性蛋白涂层 (PDA/HK@LZM) 有效地治疗慢性伤口. 这种先进的包裹调节伤口的微环境,促进快速愈合,减少糖尿病患者的并发症.

科学领域:

生物材料科学生物材料科学
伤口治愈研究研究伤口治愈研究
纳米技术纳米技术

背景情况:

慢性伤口对健康构成重大风险,特别是对于糖尿病患者来说,由于有害的微观环境.
像氧化应激,炎症和感染等异常条件阻碍了自然愈合过程.

研究的目的:

开发和评估一种用于慢性伤口治疗的新型多活性蛋白涂层 (PDA/HK@LZM).
调查涂层在空间时间上调节伤口微环境并促进愈合的能力.

主要方法:

在多巴胺-基醇纳米复合物上通过酶吸附构建了一个PDA/HK@LZM涂层.
评估了蛋白质结构完整性和酶活性保存.
在伤口模型中评估了涂层对巨细胞两极分化,炎症,氧化应激和细菌感染的影响.

主要成果:

PDA/HK@LZM涂层保持了高酶活性 (91%) 和蛋白质结构.
证明了伤口微环境的时空调节,增强了自我清洁和免疫反应.
促进了M1到M2的巨细胞两极分化,减少了炎症,清除了自由基,并表现出抗菌活性.
预防了血管微血栓,改善了营养和氧气的输送.
在实验模型中加速全厚皮肤伤口愈合.

结论:

PDA/HK@LZM涂层代表了慢性伤口管理的新策略.
涂层对伤口微环境的时空调制显著增强了愈合.
这种方法为有效的慢性伤口治疗提供了新的可能性,特别是在糖尿病患者中.

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