Full range physiological mass transport control in 3D tissue cultures.

Full range physiological mass transport control in 3D tissue cultures.
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DOI:
10.1039/c2lc40787f
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发表时间:
2013-01-07
期刊:
影响因子:
6.1
通讯作者:
Lee AP
Lee AP
中科院分区:
工程技术1区
文献类型:
--
作者:
Hsu YH;Moya ML;Abiri P;Hughes CC;George SC;Lee AP

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我们报告的第一个演示的微流控平台,捕捉在3-D组织培养的质量运输的全部生理范围。我们的方法的基础是使用长的微流体通道连接到中央微组织室的两侧,在不同的下游位置,以控制室内的质量传输分布。精确控制的Péclet数(Pe),定义为对流扩散传输的比例,超过近五个数量级(0.0056至160)实现。该平台被用来系统地研究生理质量运输对血管发生的作用。我们首次证明,血管发生可以独立地被间质流(Pe>10)或缺氧条件(Pe<0.1)刺激,而不是被中间状态(正常活组织)刺激。这个简单的平台可以应用于3D活体组织的生理和生物学研究,以及病理疾病研究,如癌症研究和药物筛选。
We report the first demonstration of a microfluidic platform that captures the full physiological range of mass transport in 3-D tissue culture. The basis of our method used long microfluidic channels connected to both sides of a central microtissue chamber at different downstream positions to control the mass transport distribution within the chamber. Precise control of the Péclet number (Pe), defined as the ratio of convective to diffusive transport, over nearly five orders of magnitude (0.0056 to 160) was achieved. The platform was used to systematically investigate the role of physiological mass transport on vasculogenesis. We demonstrate, for the first time, that vasculogenesis can be independently stimulated by interstitial flow (Pe>10) or hypoxic conditions (Pe<0.1), and not by the intermediate state (normal living tissue). This simple platform can be applied to physiological and biological studies of 3D living tissue followed by pathological disease studies, such as cancer research and drug screening.
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