Toward stem cell-based phenotypic screens for neurodegenerative diseases

Area of Science:

• Neuroscience
• Genetics
• Cell Biology

Background:

• Neurodegenerative diseases are a growing concern in aging populations, with poorly understood mechanisms hindering drug development.
• Current target-based drug screening faces significant challenges due to the complexity of neurodegeneration.
• Advances in cell reprogramming, transdifferentiation, and genome editing enable patient-derived cell-based screening.

Purpose of the Study:

• To review progress in patient-derived cellular phenotypic screening for neurodegenerative diseases.
• To identify challenges in establishing robust, disease-relevant cellular phenotypes for screening.
• To explore the utility of model organisms, like yeast, in advancing stem cell-based screening paradigms.

Main Methods:

• Utilizing patient-derived neurons and glia for phenotypic screening.
• Leveraging advancements in reprogramming, transdifferentiation, and genome editing technologies.
• Employing baker's yeast (Saccharomyces cerevisiae) as a model system for discovery.

Main Results:

• Phenotypic screening in patient-derived cells is becoming feasible.
• Significant hurdles exist in identifying reliable and relevant cellular phenotypes.
• Analysis in yeast models is informing discoveries in patient-derived neurons.

Conclusions:

• Patient-derived cells, combined with innovative technologies, offer a promising approach for neurodegenerative disease research.
• Overcoming challenges in phenotype identification is crucial for successful screening.
• Model organisms like yeast can provide valuable insights and guide the development of stem cell-based screening strategies.