Scalable hypothalamic neuron differentiation from human pluripotent stem cells suitable for modeling metabolic...

Area of Science:

• Neuroscience
• Stem Cell Biology
• Metabolic Disease Research

Background:

• The hypothalamus regulates homeostasis, with arcuate nucleus (ARC) neurons like POMC cells controlling energy and glucose balance.
• Dysfunction in these hypothalamic circuits is linked to metabolic disorders.

Purpose of the Study:

• To develop a scalable method for generating human hypothalamic neurons enriched for POMC cells from human pluripotent stem cells (hPSCs).
• To create a physiologically relevant in vitro model for studying human hypothalamic function and metabolic diseases.

Main Methods:

• Chemically defined differentiation of hPSCs into hypothalamic neurons.
• Validation using MERFISH single-cell transcriptomics, RNA-Seq, and ATAC-Seq.
• Functional assays assessing responses to insulin, GLP-1 receptor agonists, and glucose variations.

Main Results:

• Successful generation of hypothalamic neurons, including POMC-enriched populations, from multiple hPSC lines.
• Derived neurons exhibit metabolic disease-relevant gene expression and regulatory elements.
• Demonstrated functional responses to metabolic regulators and glucose changes.

Conclusions:

• The developed platform provides a robust and scalable model of human hypothalamic neurons.
• This model facilitates mechanistic studies and therapeutic development for metabolic diseases.
• Enables high-throughput screening compatible with robotic cell culture.