Abstract
Microfluidic devices are important platforms to culture and observe biological tissues. Compared with conventional setups, microfluidic devices have advantages in perfusion, including an enhanced delivery of nutrients and gases to tissues. However, explanted tissues can maintain their functions for only hours to days in microfluidic devices, although their observations are desired for weeks. The suprachiasmatic nucleus (SCN) is a brain region composed of heterogeneous cells to control the biological clock system through synchronizing individual cells in this region. The synchronized and complicated cell–cell interactions of SCN cells are difficult to reproduce from seeded cells. Thus, the viability of explanted SCN contributes to the study of SCN functions. In this paper, we propose a new perfusion platform combining a PDMS microfluidic device with a porous membrane to culture an explanted SCN for 25 days. We expect that this platform will provide a universal interface for microfluidic manipulation of tissue explants.
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Acknowledgments
This work was supported by a Grant-in-Aid for Scientific Research (S) (25221004), JSPS, MEXT, Japan (to H. R. U.), by a Grant-in-Aid for Scientific Research on Innovative Areas “Spying minority in biological phenomena (No.3306)” (23115006) of MEXT, Japan (to H. R. U.), by Research Program of Innovative Cell Biology by Innovative Technology of MEXT, Japan (to H. R. U.), by a Grant-in-Aid for JSPS Fellows (25-1565), JSPS, MEXT, Japan (to G. N. K.), by a Grant-in-Aid for Scientific Research, TEPCO Memorial Foundation, Japan (to Y. T.), by a Grant-in-Aid for Scientific Research on Innovative Areas (19H05338), JSPS, MEXT, Japan (to Y. T.), by the RIKEN Junior Research Associate program for graduate students (to G. N. K.), by an intramural Grant-in-Aid from the RIKEN Quantitative Biology Center (to H. R. U.), by an intramural Grant-in-Aid from the RIKEN Center for Developmental Biology (to H. R. U.), and by RIKEN Strategic Programs for R & D (to H. R. U.).
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Ota, N., Kanda, G.N., Moriguchi, H. et al. A Microfluidic Platform Based on Robust Gas and Liquid Exchange for Long-term Culturing of Explanted Tissues. ANAL. SCI. 35, 1141–1147 (2019). https://doi.org/10.2116/analsci.19P099
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DOI: https://doi.org/10.2116/analsci.19P099