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通过dECM装饰的融电写PCL支架调节细胞支架相互作用

Wenchao Li¹, Xiang Gao¹, Peng Zhang^2,3,4

¹School of Advanced Manufacturing, Nanchang University, Nanchang 330031, China.

|December 11, 2025

概括

结合对齐纤维和脱细胞化细胞外基质 (dECM) 的生物活性支架改善了细胞相互作用以进行组织再生. 这种方法增强了细胞粘附,增殖和对齐,这对于开发功能性工程组织至关重要.

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:

对齐的纤维支架对于指导软组织再生至关重要.
合成聚合物往往缺乏必要的本源生物化学线索,以有效的细胞集成.
弥合这一差距需要提供结构指导和生化信号的支架.

研究的目的:

通过将融电写 (MEW) 与脱细胞化细胞外基质 (dECM) 装饰相结合,开发生物活性和异构性支架.
增强细胞支架相互作用,以改善软组织工程应用.
研究可调节孔隙结构对复合支架内的细胞行为的影响.

主要方法:

使用MEW,用对齐的微纤维制造多孔聚烯 (PCL) 脚手架.
调节脚手架的孔隙架构具有1:1, 1:2, 1:3的比例.
通过浸凝方法,用猪骨肌肉dECM涂覆PCL脚手架.

主要成果:

表面特征证实了强大的dECM涂层和PCL支架上的增强水友性.
机械测试显示,复合材料支架保持了对组织再生需求的结构完整性.
用L929纤维细胞进行的体外研究表明,细胞粘附,增殖和对齐在dECM装饰的支架上显著改善.
面积比为1:1和1:2的支架表现出最高的细胞密度和最有效的形态指导.

结论:

来自对齐纤维的地形线索和dECM的生物化学信号的组合为组织再生创造了协同效应.
在MEW制造的支架上,dECM装饰显著增强了细胞反应.
优化的孔隙架构 (1:1, 1:2比例) 进一步提高了细胞密度和对齐,突出了它们用于功能组织工程的潜力.

关键词:

脱细胞化的细胞外基质 (dECM)装饰装饰装饰装饰融电写 (MEW) 是一种电写技术.聚卡普罗拉克 (PCL) 是一种

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