J Colloid Interface Sci:骨形成肽-1接枝的3D打印支架可增强骨再生

2019-01-08 MedSci MedSci原创

有些情况下,骨缺损较难治疗,仿生支架代表了成功的骨组织再生的有希望的方法。在这项研究中,研究人员设计了一种具有骨诱导功能的三维(3D)支架,并在体外和体内进行了分析。使用聚多巴胺(DOPA)将骨形成肽-1(BFP1)(促骨特异性肽)共价结合至3D打印的聚己内酯(PCL)支架。发现固定在表面上的BFP1的量根据加载溶液BFP1的浓度而增加。为了观察3D支架的生物学效应,分离了人扁桃体来源的间充质干细

有些情况下,骨缺损较难治疗,仿生支架代表了成功的骨组织再生的有希望的方法。在这项研究中,研究人员设计了一种具有骨诱导功能的三维(3D)支架,并在体外和体内进行了分析。

使用聚多巴胺(DOPA)将骨形成肽-1(BFP1)(促骨特异性肽)共价结合至3D打印的聚己内酯(PCL)支架。发现固定在表面上的BFP1的量根据加载溶液BFP1的浓度而增加。为了观察3D支架的生物学效应,分离了人扁桃体来源的间充质干细胞(hTMSC)。将细胞在支架上培养并观察以快速分化成具有骨促进能力的成骨细胞样细胞。将支架植入兔颅骨缺损模型中8周,并成功刺激血管和骨再生。

结果显示,成骨促进3D支架可以为再生医学中的骨修复和重塑提供更安全和更有效的方法。

原始出处:

Lee SJ, Won JE, et al., Development of a three-dimensionally printed scaffold grafted with bone forming peptide-1 for enhanced bone regeneration with in vitro and in vivo evaluations. J Colloid Interface Sci. 2018 Dec 28;539:468-480. doi: 10.1016/j.jcis.2018.12.097.

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    2019-02-19 waiwai3030
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    2019-03-11 shanyongle
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    2019-01-11 刘煜

    阅读谢谢分享谢谢分享

    0

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    2019-01-09 lsj630