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Updated: Jul 4, 2026

Viral-mediated Labeling and Transplantation of Medial Ganglionic Eminence (MGE) Cells for In Vivo Studies
Published on: April 23, 2015
GDNF and GFRalpha: a versatile molecular complex for developing neurons
Gustavo Paratcha1, Fernanda Ledda
1Laboratory of Molecular and Cellular Neuroscience, Department of Neuroscience, Karolinska Institute, S-17177 Stockholm, Sweden. gustavo.paratcha@ki.se
Abstract:
The GDNF family ligands (GFLs) signal through the canonical signaling receptor Ret and a glycosyl-phosphatidylinositol-anchored co-receptor, GFRalpha. In recent years, signaling by GFLs has been shown to be more complex than originally assumed. The discrepant expression between GFRalphas and Ret has suggested the existence of additional signal-transducing GDNF receptors, such as NCAM. Here we summarize novel functions and Ret-independent signaling mechanisms for GDNF and GFRalpha, focusing on developing neurons. Emerging evidence indicates a prominent role of GDNF and GFRalpha in the control of neuroblast migration and chemoattraction and in the formation of neuronal synapses by a new mechanism of ligand-induced cell adhesion. Therefore, these data highlight the importance of this versatile molecular complex for nervous system development, function and regeneration.
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