生物玻璃装载的聚烯烯酸脚架的电写,用于骨再生
Ana Beatriz Gomes de Carvalho1,2, Lais Medeiros Cardoso1,3, Caroline Anselmi1,4
1Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA. mbottino@umich.edu.
Journal of materials chemistry. B
|February 24, 2025
概括
融化电写聚烯基架结合生物活性玻璃显示了骨组织工程的前景,增强细胞活力,粘附性,并在体内促进血管生长.
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:
- 新型生物材料对于推进骨组织工程至关重要.
- 聚烯酸 (PCL) 和生物活性玻璃 (BG) 是骨再生的有希望的材料.
研究的目的:
- 开发和评估使用5%的58S生物活性玻璃 (58S-BG) 制造的聚烯酸 (PCL) 支架,该支架是通过电写 (MEW) 制造的.
- 评估这些PCL + BG支架在骨再生方面的体外和体内生物潜力.
主要方法:
- 使用化电写制造PCL和PCL+5%的58S-BG支架的制造.
- 在体外评估使用膜骨衍生中介质干细胞 (细胞毒性,粘附性,蛋白质产生,ALP活性,矿物结节形成).
- 在老鼠体内评估 (生物相容性,炎症,降解,血管生成,巨分化).
主要成果:
- PCL + BG5%的支架显示了适当的纤维对齐,并证实了BG的结合,增强了水友性.
- 试验室研究表明没有细胞毒性,增加了细胞活力,粘附性,矿物质矩阵形成,并在BG载体支架中保留了ALP活性.
- 在体内,PCL + BG5%的支架是生物相容的,促进了血管生成,并表现出降解,与PCL支架不同.
结论:
- 通过MEW成功制造了PCL + BG5%的支架,保留了多孔结构.
- 装有BG的支架表现出增强的生物特性,包括改善细胞相互作用和矿物沉积.
- 这些PCL + BG支架代表了改善骨组织再生的有希望的替代方案,特别是通过促进血管生成.
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