Nephrotic syndrome in a dish: recent developments in modeling in vitro.

Area of Science:

• Nephrology
• Cell Biology
• Biomedical Engineering

Background:

• Nephrotic syndrome is a common childhood kidney disorder characterized by a dysfunctional glomerular filtration barrier.
• Podocytes are key cells affected in nephrotic syndrome, impacting kidney function and potentially leading to end-stage renal disease.
• Studying the complex pathophysiology of nephrotic syndrome requires advanced in vitro models that mimic the in vivo glomerular filtration barrier.

Purpose of the Study:

• To review the molecular basis of nephrotic syndrome.
• To discuss the requirements for accurate in vitro modeling of nephrotic syndrome.
• To highlight advancements in stem cell organoids and microfluidic platforms for glomerular research.

Main Methods:

• Review of molecular mechanisms underlying nephrotic syndrome.
• Discussion of essential components for in vitro glomerular models, including podocyte markers.
• Exploration of three-dimensional (3D) stem cell organoids and microfluidic systems.

Main Results:

• Current in vitro models face challenges in fully recapitulating the glomerular filtration barrier.
• Stem cell organoids and microfluidic platforms show promise for creating physiologically relevant glomerular models.
• These advanced models can aid in identifying molecular targets and therapeutic strategies for nephrotic syndrome.

Conclusions:

• Developing physiologically relevant in vitro glomerular models is crucial for advancing nephrotic syndrome research.
• Three-dimensional cultures, stem cell organoids, and microfluidics represent a new era for studying kidney diseases.
• Improved in vitro models will accelerate the discovery of novel therapeutic avenues for nephrotic syndrome.