氧酸盐/酸盐/凝油墨具有骨质传导和骨质生成潜力,可用于生物打印骨组织类似物
Ana Raquel Bastos1, Lucília P da Silva1, F Raquel Maia1
13B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associated Laboratory, Portugal.
International journal of biological macromolecules
|May 26, 2024
概括
这项研究引入了一种新的生物打印骨组织结构,使用专门的油墨进行患者特定的骨再生和疾病建模. 工程骨组织显示出早期骨折修复和药物查应用的前景.
科学领域:
- 生物材料工程 生物材料工程
- 组织工程是组织工程.
- 再生医学是一种再生医学.
背景情况:
- 对患者特异性工程骨组织和用于疾病研究和药物查的体外模型的需求日益增加.
- 需要先进的生物材料,能够支持骨再生,并模仿本地组织的特性.
研究的目的:
- 开发和描述一个生物打印的骨组织结构,使用在酸盐/凝糖/酸油墨中的SaOs-2细胞.
- 评估不同酸含量对油墨特性,细胞行为和骨质生成潜力的影响.
- 评估结构对于骨缺陷再生和作为药物查平台的适用性.
主要方法:
- 开发出具有不同度的酸盐/酸盐/酸生物墨水.
- 评估油墨粘性弹性,可打印性和生物矿物化特性.
- 在印刷后评估SaOs-2细胞活力,增殖,代谢活性和骨质基因/蛋白质表达.
- 从结构中释放的和酸盐的分析.
主要成果:
- 生物墨水表现出非牛顿式剪切稀释行为,确保印刷后的结构完整性.
- 增加的酸含量提高了油墨矿化率,适用于骨缺陷应用.
- 封装的SaOs-2细胞保持活力,扩散和代谢活跃,在第7天骨质生成标志物上调,特别是在较低的酸配方中.
- 构建释放的和酸盐,有利于矿化,支持早期骨再生.
结论:
- 开发的生物打印骨组织结构符合早期骨缺陷/骨折再生的标准.
- 这些结构是药物查和评估骨疾病治疗方法的有希望的平台.
- 生物油墨中优化酸含量对于平衡可打印性,矿化和骨质生成潜力至关重要.
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