Reconstituting organ-level lung functions on a chip.
Reconstituting organ-level lung functions on a chip.
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DOI:
10.1126/science.1188302
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发表时间:
2010-06-25
期刊:
影响因子:
--
通讯作者:
Ingber DE
中科院分区:
文献类型:
--
作者:
Huh D;Matthews BD;Mammoto A;Montoya-Zavala M;Hsin HY;Ingber DE
Here we describe a biomimetic microsystem that reconstitutes the critical functional alveolar-capillary interface of the human lung. This bioinspired microdevice reproduces complex integrated organ-level responses to bacteria and inflammatory cytokines introduced into the alveolar space. In nanotoxicology studies, this lung mimic revealed that cyclic mechanical strain accentuates toxic and inflammatory responses of the lung to silica nanoparticles. Mechanical strain also enhances epithelial and endothelial uptake of nanoparticulates and stimulates their transport into the underlying microvascular channel. Similar effects of physiological breathing on nanoparticle absorption are observed in whole mouse lung. Mechanically active ‘organ-on-a-chip’ microdevices that reconstitute tissue-tissue interfaces critical to organ function may therefore expand the capabilities of cell culture models, and provide low-cost alternatives to animal and clinical studies for drug screening and toxicology applications.
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