Related Experiment Video
Updated: Jul 4, 2026
Optimization of Renal Organoid and Organotypic Culture for Vascularization, Extended Development, and Improved Microscopy Imaging
Published on: March 28, 2020
Spatially patterned kidney assembloids recapitulate progenitor self-assembly and enable high-fidelity in vivo disease
Biao Huang1, Pedro Medina1, Jincan He2
1Vito M. Campese MD/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
Researchers developed kidney progenitor assembloid (KPA) models that better mimic kidney development and function. These advanced models successfully modeled autosomal dominant polycystic kidney disease (ADPKP), offering new possibilities for regenerative medicine.
Area of Science:
- Developmental biology
- Regenerative medicine
- Organoid technology
Background:
- Current kidney organoids lack the complex spatial patterning and functional capabilities of native kidneys.
- The human kidney develops from nephron progenitor cells and a collecting system derived from ureteric progenitor cells.
Purpose of the Study:
- To develop advanced kidney progenitor assembloid (KPA) models that recapitulate in vivo kidney self-assembly processes.
- To improve cellular complexity, maturity, and functional aspects of kidney organoids.
- To establish a high-fidelity model for studying kidney diseases like autosomal dominant polycystic kidney disease (ADPKD).
Main Methods:
- Development of spatially organized mouse and human kidney progenitor assembloids (KPAs).
- Assessment of cellular complexity, maturity, and kidney functions in vitro and in vivo.
- Modeling of human ADPKD using genome-edited, in vivo-grown human KPAs.
Main Results:
- KPAs demonstrated extensive nephron development and fusion to a central collecting system, mimicking in vivo self-assembly.
- KPAs exhibited enhanced cellular complexity and maturity, alongside key kidney functions.
- The ADPKD model in KPAs recapitulated cystic phenotypes and disease hallmarks, revealing cellular crosstalk.
Conclusions:
- The KPA platform offers a significant advancement over existing kidney organoids, closely mirroring kidney development.
- KPAs provide a robust system for high-fidelity modeling of kidney diseases.
- This technology lays a crucial foundation for future kidney regenerative medicine strategies.
