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一种双重修饰的葡萄甘多糖化合物可以选择性地隔离增长因子,以修复皮肤组织

Xiaotong Hu¹, Daping Xie², Yuwei Li³

¹State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China; Guangdong Engineering Technology Research Center of Implantable Medical Polymer, Shenzhen Lando Biomaterials, Shenzhen, China.

Journal of controlled release : official journal of the Controlled Release Society

|February 2, 2025

概括

这项研究引入了一种新的植物衍生的人造皮肤基质 (ADM),可以选择性地隔离生长因子. 这种生物材料促进皮肤再生和血管生成,性能优于现有的ADM.

科学领域:

生物材料科学生物材料科学
组织工程是组织工程.
再生医学是一种再生医学.

背景情况:

人工皮肤矩阵 (ADM) 用于软组织缺陷,但具有有限的生物活性.
原生皮肤糖氨酸甘油 (GAG) 调节生长因子 (GF),这是当前ADM中经常丢失的功能.

研究的目的:

开发一种基于多糖的新型ADM,具有增强的生物活性,以改善皮肤组织的修复.
创建一个ADM,可以选择性地调节特定的治疗成长因素.

主要方法:

准备了一种植物性葡萄糖骨干 (BSP),并将其修改为S^MA^L-BSP.
在实验室中评估了S^MA^L-BSP ADM的隔离生长因子 (VEGF-A,FGF-2) 和刺激内皮细胞的能力.
评估了乙基对巨细胞氧化 (NO) 分泌的作用.
在大鼠全厚皮肤伤口模型中测试了S^MA^L-BSP ADM.

主要成果:

S^MA^L-BSP ADM选择性地隔离了VEGF-A和FGF-2,促进了内皮细胞的生长.
添加乙基组诱导了巨细胞的NO分泌,提供抗菌活性.
在体内,S^MA^L-BSP ADM促进了血管生成和组织再生,超过了基于硫酸的ADM.
没有观察到植物衍生ADM的不良影响.

结论:

开发了一种基于多糖的新型ADM (S^MA^L-BSP),用于增强皮肤组织再生.
通过ADM选择性增长因子封存是改善治疗潜力的有希望的策略.
植物衍生ADM为动物衍生产品提供了安全有效的替代品.

关键词:

血管新生的产生.人工皮肤矩阵是人工皮肤矩阵.葡萄甘多糖化物葡萄甘多糖化物增长因素是指增长的因素.皮肤组织修复皮肤组织修复.

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