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Related Experiment Video

Updated: Aug 13, 2025

Optimization of Renal Organoid and Organotypic Culture for Vascularization, Extended Development, and Improved Microscopy Imaging

Optimization of Renal Organoid and Organotypic Culture for Vascularization, Extended Development, and Improved Microscopy Imaging

Published on: March 28, 2020

The developing murine kidney actively negotiates geometric packing conflicts to avoid defects.

Louis S Prahl¹, John M Viola¹, Jiageng Liu¹

¹Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA.

Developmental Cell

|January 24, 2023

Summary

Mouse embryonic kidney development balances tubule branching with organ size limits. Radial tension guides tubule packing, increasing tip density and preventing defects, offering insights into congenital kidney disorders.

Keywords:

actomyosin branching morphogenesis epithelial tubules geometric packing kidney organogenesis

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Last Updated: Aug 13, 2025

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Published on: March 28, 2020

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Area of Science:

Developmental biology
Biophysics
Organogenesis

Background:

Branched epithelial tubules are vital for organ function (secretion, gas exchange, filtration).
Developmental conflicts between tubule formation and organ size constraints are poorly understood.

Purpose of the Study:

Investigate how the mouse embryonic kidney epithelium resolves physical packing conflicts.
Understand the interplay between tubule branching, organ surface area, and defect formation.

Main Methods:

Whole embryonic kidney explant imaging.
Computational and soft material modeling of tubule families.
Experimental manipulation of tubule tension in explants.

Main Results:

Identified six geometric packing phases for tubule networks, including two defective types.
Demonstrated that radial tension on tubule families induces a vertical packing arrangement.
Showed this vertical packing increases surface tip density and avoids developmental defects.

Conclusions:

Embryonic kidney development involves physical constraints that influence tubule organization.
Radial tension is a key factor in achieving efficient tubule packing and preventing defects.
Provides a framework for understanding and classifying congenital kidney defects.