論文

2022年1月27日

Cell-Based Microfluidic Device Utilizing Cell Sheet Technology

Cyborg and Bionic Systems
  • Katsuhisa Sakaguchi
  • ,
  • Kei Akimoto
  • ,
  • Masanori Takaira
  • ,
  • Ryu-ichiro Tanaka
  • ,
  • Tatsuya Shimizu
  • ,
  • Shinjiro Umezu

2022
開始ページ
1
終了ページ
8
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.34133/2022/9758187
出版者・発行元
American Association for the Advancement of Science (AAAS)

The development of microelectromechanical systems has resulted in the rapid development of polydimethylpolysiloxane (PDMS) microfluidic devices for drug screening models. Various cell functions, such as the response of endothelial cells to fluids, have been elucidated using microfluidic devices. Additionally, organ-on-a-chip systems that include organs that are important for biological circulation, such as the heart, liver, pancreas, kidneys, and brain, have been developed. These organs realize the biological circulation system in a manner that cannot be reproduced by artificial organs; however, the flow channels between the organs are often artificially created by PDMS. In this study, we developed a microfluidic device consisting only of cells, by combining cell sheet technology with microtitanium wires. Microwires were placed between stacked fibroblast cell sheets, and the cell sheets adhered to each other, after which the microwires were removed leaving a luminal structure with a size approximately equal to the arteriolar size. The lumen structure was constructed using wires with diameters of 50, 100, 150, and 200 <italic>μ</italic>m, which were approximations of the arteriole diameters. Furthermore, using a perfusion device, we successfully perfused the luminal structure created inside the cell sheets. The results revealed that a culture solution can be supplied to a cell sheet with a very high cell density. The biofabrication technology proposed in this study can contribute to the development of organ-on-a-chip systems.

リンク情報
DOI
https://doi.org/10.34133/2022/9758187
URL
http://downloads.spj.sciencemag.org/cbsystems/2022/9758187.pdf
URL
http://downloads.spj.sciencemag.org/cbsystems/2022/9758187.xml
ID情報
  • DOI : 10.34133/2022/9758187
  • eISSN : 2692-7632

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