Microfibrous Scaffolds Guide Stem Cell Lumenogenesis and Brain Organoid Engineering

Area of Science:

• Stem cell biology
• Bioengineering
• Developmental biology

Background:

• 3D organoids are valuable in vitro models for human development and disease research.
• Current organoid culture methods suffer from low throughput, poor reproducibility, and geometric heterogeneity.
• Limitations hinder the full potential and application scope of organoid research.

Purpose of the Study:

• To develop a high-throughput method for generating and culturing uniform organoids.
• To address limitations of manual organoid culture methods.
• To enable guided self-organization of pluripotent stem cells for organoid formation.

Main Methods:

• Utilized melt electrospinning writing to create tuneable grid scaffolds.
• Employed scaffolds to guide pluripotent stem cell self-organization into patterned embryoid bodies.
• Developed two methods for culturing scaffold-grown embryoid bodies into cerebral organoids.

Main Results:

• Grid geometry was identified as a key factor in stem cell self-organization and lumen formation.
• Scaffolds facilitated the generation of patterned arrays of embryoid bodies and uniform cerebral organoids.
• The new method significantly reduces time and manual labor compared to conventional techniques.

Conclusions:

• The developed scaffold technology offers a high-throughput approach for organoid generation and culture.
• This methodology advances stem cell self-organization studies and lumenogenesis research.
• The approach is poised to enable large-scale, uniform organoid generation for high-throughput screening.