Modeling Wilms Tumor Development with Multiple Lineage Human Fetal Kidney Organoids Reveals the Cellular Origin and Specific Drivers of Tumorigenesis.

Multiple lineage human fetal kidney organoids reveal that specific driver mutations in distinct cell types cause Wilms tumor development.

• Why it matters: Understanding the cellular origin and genetic drivers of Wilms tumor is crucial for developing targeted therapies, but current models lack the full cellular diversity of the developing human kidney.
• What they did: Researchers created 3D human fetal kidney organoids that mimic kidney development, enabling the study of mutations in specific cell lineages by generating ureteric bud and nephron organoids and screening for tumorigenic mutations.
• The result: The study identified key driver mutations and their cellular origins, providing a scalable platform to investigate how mutation combinations promote Wilms tumor, advancing insights into kidney cancer development.