在一个大型动物模型中,骨再生具有模块化的现成软模仿性
Leanne de Silva1,2, Alessia Longoni2,3, Flurina Staubli1,2
1Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, GA, 3508, The Netherlands.
Advanced healthcare materials
|August 14, 2023
概括
在大型动物中,具有软的特征的工程软骨可实现内分泌骨再生 (EBR). 先进的结构实现了与自体移植相当的骨再生,为临床应用铺平了道路.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 整形外科手术 整形外科手术
背景情况:
- 固体中骨再生 (EBR) 对于骨修复至关重要,但在临床转化方面面临挑战,特别是在大型动物模型中.
- 目前的EBR策略尚未在大型动物中取得显著的成功,限制了它们的临床适用性.
研究的目的:
- 评估EBR在使用工程软骨结构的山羊临界大小缺陷模型中的可行性.
- 评估仿制软的生物材料在大型动物骨再生的疗效.
主要方法:
- 来自山羊的多能介质干细胞 (MSCs) 经历了体生成,以创建工程软骨.
- 两种现成的构造,代表不同的chondrogenesis阶段,是通过devitalization产生的.
- 构造物被植入山羊上峰缺陷中,使用一种新间距器进行评估.
主要成果:
- 这种模仿先进体生成的结构显示出显著的骨再生,可与3个月后的自体移植相比较.
- 模仿较早的软体生成阶段的生物材料显示出比对照生物更好的再生效果,但效果不如先进的结构.
- 观察到成功的厘米尺度骨形成,表明强大的再生能力.
结论:
- 在大型动物中,使用柔软的模仿材料可以实现内分体骨再生.
- 先进的软体生成阶段构造显示出在骨缺陷修复中临床翻译的高潜力.
- 这项研究为开发针对大骨缺陷的临床EBR策略提供了一个有希望的平台.
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