双交联氨酸和原作为软骨组织工程的潜在生物墨水
Xiaoyi Lan1, Zhiyao Ma2, Andrea Dimitrov2
1Department of Civil and Environmental Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta, Canada; Department of Surgery, Divisions of Orthopedic Surgery & Surgical Research, University of Alberta, Edmonton, Alberta, Canada.
International journal of biological macromolecules
|June 3, 2024
概括
这项研究开发了一种新的3D生物打印生物墨水,使用原蛋白,氨酸和PEGDA. 这种创新材料有效地支持软骨组织的再生,显示了软骨修复应用的前景.
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:
- 由于其无血管性质,质软骨的自我修复能力有限.
- 三维 (3D) 生物打印提供了一种有前途的方法,用于使用带有细胞的生物材料 (生物墨水) 进行软骨组织再生.
- 有效的生物墨水必须培养有利于冠状细胞分化和新软骨形成的微环境.
研究的目的:
- 引入和评估一种创新的生物墨水配方,用于3D生物打印软骨移植.
- 评估开发的生物墨的可打印性,细胞活力,结构完整性和ECM形成.
- 为了研究关键组件对生物墨的性能对软骨组织工程的影响.
主要方法:
- 开发一种新型生物墨水,包括可光修复的烯酸I型原蛋白 (COLMA),醇修饰的氨酸 (THA) 和聚乙烯糖醇) 双酸盐 (PEGDA).
- 在生物墨水中利用人类鼻腔淋巴细胞进行软骨结构的3D生物打印.
- 基于可打印性,细胞活力,结构完整性和软骨状细胞外基质 (ECM) 生产的三种生物油墨配方 (COLMA,COLMA+THA,COLMA+THA+PEGDA) 的评估.
主要成果:
- 添加醇修饰的氨酸 (THA) 和聚乙烯甘 (PEGDA) 二烯酸盐显著改善了生物墨的打印能力和结构完整性.
- 在含有THA和PEGDA的配方中观察到增强的细胞活力.
- COLMA+THA+PEGDA配方在促进软骨状细胞外基质的形成方面表现出卓越的能力.
结论:
- 开发的COLMA+THA+PEGDA生物墨水是3D生物打印软骨移植的有希望的材料.
- 原蛋白,氨酸和PEGDA的组合增强了生物线索和新软骨形成的结构支持.
- 这种创新的生物墨水在推进软骨修复和重建手术应用方面具有重大潜力.
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