Engineering an in vitro air-blood barrier by 3D bioprinting.

Engineering an in vitro air-blood barrier by 3D bioprinting.
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DOI:
10.1038/srep07974
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发表时间:
2015-01-22
期刊:
影响因子:
4.6
通讯作者:
Rothen-Rutishauser B
Rothen-Rutishauser B
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Horváth L;Umehara Y;Jud C;Blank F;Petri-Fink A;Rothen-Rutishauser B

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近年来,在风险评估领域大力开发和商业化体外替代品,已经产生了新的有前途的二维和三维(3D)细胞培养模型。然而,目前还没有真实的 3D 体外肺泡模型。在这里,我们报告了利用生物打印技术生物制造由内皮细胞、基底膜和上皮细胞层组成的人体气血组织屏障类似物。与手动方法相反,我们证明该技术能够自动且可重复地创建更薄且更均匀的细胞层,这是最佳气血组织屏障所必需的。该生物打印平台将提供一个出色的工具来设计先进的 3D 肺部模型,用于安全评估和药效测试的高通量筛选。
Intensive efforts in recent years to develop and commercialize in vitro alternatives in the field of risk assessment have yielded new promising two- and three dimensional (3D) cell culture models. Nevertheless, a realistic 3D in vitro alveolar model is not available yet. Here we report on the biofabrication of the human air-blood tissue barrier analogue composed of an endothelial cell, basement membrane and epithelial cell layer by using a bioprinting technology. In contrary to the manual method, we demonstrate that this technique enables automatized and reproducible creation of thinner and more homogeneous cell layers, which is required for an optimal air-blood tissue barrier. This bioprinting platform will offer an excellent tool to engineer an advanced 3D lung model for high-throughput screening for safety assessment and drug efficacy testing.
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