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Related Experiment Video

Updated: May 11, 2026

A Quantitative Cell Migration Assay for Murine Enteric Neural Progenitors

A Quantitative Cell Migration Assay for Murine Enteric Neural Progenitors

Published on: September 18, 2013

Extracellular crosstalk: when GDNF meets N-CAM.

Feng Quan Zhou¹, Jian Zhong, William D Snider

¹UNC Neuroscience Center, Neuroscience Research Building, University of North Carolina at Chapel Hill, 27599, Chapel Hill, NC, USA

|July 3, 2003

Summary

Glial cell line-derived neurotrophic factor (GDNF) binds to N-CAM, revealing a new signaling pathway. This discovery explains RET-independent GDNF actions and impacts Schwann cell migration and neuron axon growth.

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Area of Science:

Neuroscience
Cell Biology
Molecular Signaling

Background:

Glial cell line-derived neurotrophic factor (GDNF) is crucial for neuronal development and survival.
The signaling mechanisms of GDNF, particularly RET-independent pathways, have remained largely elusive.
Neural Cell Adhesion Molecule (N-CAM) is known to mediate cell-cell interactions in the nervous system.

Discussion:

This study identifies N-CAM as a direct receptor for GDNF, elucidating a novel signaling axis.
This GDNF-N-CAM interaction represents a RET-independent pathway, distinct from established GDNF-RET signaling.
The findings challenge previous models and expand our understanding of GDNF's diverse biological roles.

Key Insights:

N-CAM acts as a functional receptor for GDNF.
A novel GDNF-N-CAM signaling pathway has been discovered.
This pathway is independent of the RET receptor tyrosine kinase.

Outlook:

Further investigation into the downstream effectors of the GDNF-N-CAM pathway is warranted.
This pathway may represent a therapeutic target for promoting nerve regeneration and treating neurological disorders.
Exploring the role of GDNF-N-CAM signaling in other cell types and developmental processes could yield new insights.