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Acta Biomater:分离人脂肪组织作为通过软骨内骨化产生骨器官的天然生物材料

2018-11-09 MedSci MedSci原创

通过脂肪间充质基质细胞(ASC)的软骨内骨化,从细胞分离到体外单层扩增,接种到支架,软骨分化和体内重塑,需要多个步骤来促进成骨。此外,ASC的单层扩增和传代显著降低了其分化潜力。在这里,我们建议脂肪组织本身可以用作ASC扩增和软骨内骨化的支架。 将人脂肪切成碎块并用悬浮的增殖培养基培养3周。将得到的Adiscaf构建体与用先前开发的对照方法产生的构建体进行比较,即用单层扩增的ASC接种的胶原

通过脂肪间充质基质细胞(ASC)的软骨内骨化,从细胞分离到体外单层扩增,接种到支架,软骨分化和体内重塑,需要多个步骤来促进成骨。此外,ASC的单层扩增和传代显著降低了其分化潜力。在这里,我们建议脂肪组织本身可以用作ASC扩增和软骨内骨化的支架。

将人脂肪切成碎块并用悬浮的增殖培养基培养3周。将得到的Adiscaf构建体与用先前开发的对照方法产生的构建体进行比较,即用单层扩增的ASC接种的胶原海绵。4周的软骨形成分化后,Adiscaf含有软骨组织,其特征在于糖胺聚糖和II型胶原。再过2周的肥大分化后,Adiscaf在基因表达和蛋白水平上显示出增殖标志物的上调。植入体内8周后,Adiscaf导致异位骨组织形成。与涉及ASC的分离和单层扩增的对照组相比,Adiscaf显示出优异的体外分化和体内表现。

该研究表明,用作天然构建体的成人人脂肪组织可通过软骨内骨化分化骨器官,可用于产生用于骨修复的成骨移植物。

原始出处:

Guerrero J, Pigeot S, et al., Fractionated human adipose tissue as a native biomaterial for the generation of a bone organ by endochondral ossification. Acta Biomater. 2018 Sep 1;77:142-154. doi: 10.1016/j.actbio.2018.07.004. Epub 2018 Jul 4.

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    2019-09-09 docwu2019
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    2019-09-15 sunylz
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