Postnatal human enteric neurospheres show a remarkable molecular complexity

Area of Science:

• Neuroscience
• Stem Cell Biology
• Gastroenterology

Background:

• The enteric nervous system (ENS) governs gastrointestinal functions; its dysfunction leads to severe neuropathies.
• Enteric neurospheres, derived from neural crest stem and progenitor cells, offer a model for studying ENS pathomechanisms and developing therapies.
• Detailed characterization of enteric neurosphere composition is crucial for basic research and cell-based therapies.

Purpose of the Study:

• To comprehensively analyze the molecular composition and cellular markers of human enteric neurospheres.
• To establish a standardized methodology for characterizing enteric neurospheres for research and therapeutic applications.

Main Methods:

• Generation of human enteric neurospheres from individuals of varying ages.
• nCounter target gene expression analysis for stem, progenitor, neuronal, glial, muscular, and epithelial cell markers.
• Analysis of archived paraffin-embedded tissue specimens for comparative molecular profiling.

Main Results:

• Enteric neurospheres exhibit significant molecular complexity, expressing markers for stem, progenitor, neuronal, glial, muscle, and epithelial cells.
• Moderate expression of the pluripotency marker POU5F1 was detected in enteric neurospheres.
• Distinct intra-individual and inter-individual variability in gene expression profiles was observed.

Conclusions:

• Molecular signature assessment is vital for standardizing enteric neurosphere use and optimizing experimental designs.
• Understanding neurosphere composition aids in mitigating risks, such as tumor formation, in future therapeutic applications.
• The developed study pipeline can serve as a blueprint for characterizing enteric neurospheres in diverse research and clinical settings.