4.6 Article

Microfluidic Device to Manipulate 3D Human Epithelial Cell-Derived Intestinal Organoids

Journal

MICROMACHINES
Volume 13, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/mi13122082

Keywords

intestinal organoid; enteroid; microfluidics; fusion; perfusion

Funding

  1. RIKEN Center for Biosystems Dynamics Research Organoid Project
  2. JSPS KAKENHI
  3. [21H01779]

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In this study, a microfluidic organoid-trapping device was proposed to immobilize and stimulate human intestinal organoids. The device successfully trapped and cultured human intestinal organoids, and demonstrated the ability to induce organoid fusion and regulate their surface structures using fluidic shear stress.
In this study, we propose a microfluidic organoid-trapping device used to immobilize human intestinal organoids and apply fluidic stimuli to them. The proposed device has a microchannel with a trapping region with wall gaps between the channel walls and the bottom surface, and a constriction to clog the organoids in the channel. Since the introduced culture medium escapes from the gap, organoids can be cultured without excessive deformation by hydrostatic pressure. Owing to the characteristics of the organoid-trapping device, we succeeded in trapping human intestinal organoids in the channel. Furthermore, to demonstrate the applicability of the device for culturing intestinal organoids, we induced organoid fusion to form large organoids by aligning the organoids in the channel and applying fluidic shear stress to the organoids to regulate their surface structures. Therefore, we believe that organoid-trapping devices will be useful for investigating organoids aligned or loaded with fluidic stimulation.

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