Non-Invasive Quality Control of Organoid Cultures Using Mesofluidic CSTR Bioreactors and High-Content Imaging

Area of Science:

• Neuroscience
• Bioengineering
• Biotechnology

Background:

• Human brain organoids model in vivo brain function and neurological diseases.
• Challenges in 3D organoid culture include long growth times and sample heterogeneity.
• Current methods limit the application of brain organoids in research and therapeutics.

Purpose of the Study:

• To develop an integrated platform for robust, long-term culturing of 3D brain organoids.
• To improve nutrient delivery and enable non-invasive quality control of organoids.
• To establish reproducible culture standards for 3D cellular systems.

Main Methods:

• Designed a mesofluidic bioreactor based on reaction-diffusion scaling theory for efficient media exchange.
• Integrated the bioreactor with longitudinal tracking and machine learning for organoid quality control.
• Performed transcriptome analyses to assess organoid development and cell viability.

Main Results:

• The mesofluidic bioreactor ensured sufficient nutrient delivery for long-term organoid culture.
• The integrated platform enabled non-invasive quality control and sample pre-selection.
• Transcriptome data indicated enhanced organoid development and reduced cell death in the bioreactor.

Conclusions:

• The developed integrated platform supports robust and reproducible long-term culturing of 3D brain organoids.
• This technology facilitates neurological disease modeling and therapeutic screening.
• The platform is a generalizable tool for standardizing 3D cellular system cultures across various applications.