共 36 条
Microfluidic tissue model for live cell screening
被引:19
作者:
Lee, Philip J.
[1
]
Gaige, Terry A.
[1
]
Ghorashian, Navid
[1
]
Hung, Paul J.
[1
]
机构:
[1] CellASIC Corp, San Leandro, CA 94577 USA
关键词:
D O I:
10.1021/bp070053l
中图分类号:
Q81 [生物工程学(生物技术)];
Q93 [微生物学];
学科分类号:
071005 ;
0836 ;
090102 ;
100705 ;
摘要:
We have developed a microfluidic platform modeled after the physiologic microcirculation for multiplexed tissue-like culture and high-throughput analysis. Each microfabricated culture unit consisted of three functional components: a 50 mu m wide cell culture pocket, an artificial endothelial barrier with 2,mu m pores, and a nutrient transport channel. This configuration enabled a high density of cancer cells to be maintained for over I week in a solid tumor-like morphology when fed with continuous flow. The microfluidic chip contained 16 parallel units for "flow cell" based experiments where live cells were exposed to a soluble factor and analyzed via fluorescence microscopy or flow-through biochemistry. Each fluidically independent tissue unit contained similar to 500 cells fed with a continuous flow of 10 nL/min. As a demonstration, the toxicity profile of the anti-cancer drug paclitaxel was collected on HeLa cells cultured in the microfluidic format and compared with a 384-well dish for up to 5 days of continuous drug exposure.
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页码:946 / 951
页数:6
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