Modeling Podocytopathies with Kidney Organoids

Area of Science:

• Nephrology
• Regenerative Medicine
• In Vitro Modeling

Background:

• Kidney organoids offer superior alternatives to traditional cell cultures and animal models for kidney research.
• Existing reviews often focus on tubular kidney physiology, leaving a gap in podocytopathy research.
• Podocytopathies, diseases affecting kidney filtration units, require specialized in vitro models.

Purpose of the Study:

• To review kidney organoid applications specifically for modeling podocyte injury and related kidney diseases.
• To explore the use of organoids in drug screening, genetic kidney disease research, and understanding complex glomerular disorders.
• To critically evaluate the strengths and limitations of kidney organoids in podocytopathy research.

Main Methods:

• Literature review of studies utilizing kidney organoids to model podocyte injury.
• Analysis of organoid applications in drug-induced injury, genetic disorders, and complex glomerular diseases.
• Evaluation of organoid utility for assessing variants of uncertain significance and mutation-specific therapies.

Main Results:

• Kidney organoids have successfully modeled drug-induced podocyte injury, showing potential for high-throughput drug screening.
• Organoids have advanced research into monogenic kidney diseases like focal segmental glomerulosclerosis (FSGS) and collagenopathies.
• Organoid systems are being used to study complex conditions including APOL1-mediated kidney disease, diabetic nephropathy, and virus-induced podocyte injury.

Conclusions:

• Kidney organoids are valuable tools for studying diverse podocytopathies, from genetic to acquired forms.
• Further refinement of organoid models is needed to improve fidelity, maturity, and functional integration for precision medicine.
• Organoids present significant opportunities for advancing the understanding and treatment of kidney diseases affecting podocytes.