Quick and robust method for the generation of human iPSC-derived choroid plexus organoids

Area of Science:

• Neuroscience
• Stem Cell Biology
• Biotechnology

Background:

• The choroid plexus (ChP) is vital for cerebrospinal fluid (CSF) production, brain homeostasis, and immune surveillance.
• Current in vitro ChP models are complex, slow, and difficult to reproduce, limiting research.
• There is a need for efficient and reliable ChP models for studying neurological conditions and drug delivery.

Purpose of the Study:

• To develop a quick, robust, and reproducible method for generating human induced pluripotent stem cell (iPSC)-derived choroid plexus (ChP) organoids.
• To create a xeno-free, serum-free, and scalable organoid model.
• To establish a platform for studying CSF dynamics, neuroinflammation, and CNS drug transport.

Main Methods:

• Utilized human iPSCs for organoid generation.
• Employed early GSK3β inhibition and transient WNT modulation.
• Developed a xeno-free and serum-free minimal workflow.
• Ensured scalability and reproducibility.

Main Results:

• Successfully generated human iPSC-derived ChP organoids rapidly and robustly.
• Organoids exhibited cystic, ChP-enriched structures with ventricle-like morphology.
• Confirmed expression of canonical ChP markers, including TTR and ZO-1.
• The method proved to be xeno-free, serum-free, scalable, and reproducible.

Conclusions:

• A novel, efficient method for producing human iPSC-derived ChP organoids has been established.
• These organoids accurately recapitulate ChP morphology and marker expression.
• This platform offers significant potential for advancing research in CSF physiology, barrier modeling, and translational neuroscience.