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Updated: Jun 26, 2025
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Assessment of Dendritic Arborization in the Dentate Gyrus of the Hippocampal Region in Mice
Published on: March 31, 2015
10.3K
Stochastic growth and selective stabilization generate stereotyped dendritic arbors
Biorxiv : the Preprint Server for Biology
|May 20, 2024
Summary
Ligand-free guidance receptors drive stochastic dendritic growth, while ligand binding shapes the arbor by inhibiting growth and retraction. This reveals a novel mechanism for neuronal development.
Area of Science:
- Neuroscience
- Developmental Biology
- Cell Biology
Background:
- Neuronal development involves complex processes of dendritic arbor formation.
- The precise mechanisms by which guidance receptors and ligands coordinate dendritic growth, retraction, and stabilization remain incompletely understood.
- Previous work identified SAX-7/LICAM as an extracellular ligand that shapes the PVD sensory neuron by binding to the DMA-1 receptor.
Conclusions:
- A novel model for dendritic arbor formation is proposed.
- Ligand-free guidance receptors mediate intrinsic, stochastic dendritic growth.
- Extracellular ligands instruct dendrite arbor shape by inhibiting growth, revealing a dual role for guidance receptors.
