Human iPSC-Derived Hepatic Progenitors Bioengineered into Liver Organoids using Inverted Colloidal Crystal Poly(Ethylene Glycol) Scaffold
Source Ng et al., 2018 · King's College London, Centre for Stem Cells and Regenerative Medicine & Institute for Liver Studies · 10.1016/j.biomaterials.2018.07.043
Abstract
This protocol describes the generation of liver organoids from human iPSC-derived hepatic progenitors cultured in inverted colloidal crystal (ICC) scaffolds made from polyethylene glycol. The organoids exhibit advanced hepatic function, morphology, and gene expression profiles comparable to fetal liver tissue, with potential applications in drug metabolism studies, disease modeling, and transplantation.
Protocol overview
21 steps across 3 phases
- 1 Construct sacrificial crystal lattice
- 2 Anneal polystyrene lattice
- 3 Prepare PEGDA precursor solution
- 4 Infiltrate lattice with PEGDA precursor
- 5 Perform free-radical polymerization
- 6 Remove sacrificial polystyrene lattice
- 7 Equilibrate ICC scaffolds in deionized water
- 8 Coat ICC scaffolds with ECM proteins
- 9 Prepare tubular ICC scaffolds sized for use in 96-well plate format.
- 1 Generate iPSC-derived hepatic progenitors (IH)
- 2 Prepare cell suspension at target density
- 3 Seed cells onto ICC scaffolds
- 4 Incubate for initial cell attachment (dry seeding phase)
- 5 Transfer scaffolds to culture plate and refresh media
- 6 Refresh media at 4 hours post-seeding
- 7 Monitor Phase I morphology (Days 0–5)
- 1 Continue culture and monitor organoid formation
- 2 Refresh media every two days
- 3 Monitor Phase II morphology and organoid maturation (Days 7–14)
- 4 Assess hepatic function and maturation markers
- 5 Optional: Harvest organoids for downstream analyses
Full SOP
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Attribution
This SOP was authored by Organthis based on the published method in Ng et al., 2018. The originating laboratory holds no rights in this SOP and has not endorsed it unless marked Verified.
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