Axonal Dendritic Growth
Axonal Dendritic Growth - Related Videos
10:45
In Situ Visualization of Axon Growth and Growth Cone Dynamics in Acute Ex Vivo Embryonic Brain Slice Cultures
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Cited by 4 •
2021
This protocol demonstrates a straightforward and robust method to study in situ axon growth and growth cone dynamics. It describes how to prepare ex vivo physiologically relevant acute brain slices and provides a user-friendly analysis pipeline.
11:46
Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
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Cited by 30 •
2011
A unique tissue engineering method was developed to elongate numerous nerve fibers in culture by recapitulating axon stretch growth; a form of nervous system growth whereby nerves elongate in conjunction with growth of the enlarging body.
09:52
Inducing Dendritic Growth in Cultured Sympathetic Neurons
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Cited by 10 •
2012
We describe a protocol for using bone morphogenetic protein-7 (BMP-7) or Matrigel to selectively induce dendritic growth in primary sympathetic neurons dissociated from the superior cervical ganglia (SCG) of perinatal rats.
12:51
Voltage-sensitive Dye Recording from Axons, Dendrites and Dendritic Spines of Individual Neurons in Brain Slices
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Cited by 13 •
2012
An imaging technique for monitoring of membrane potential changes with sub-micrometer spatial and sub-millisecond temporal resolution is described. The technique, based on laser excitation of voltage-sensitive dyes, allows measurements of signals in axons and axon collaterals, terminal dendritic branches, and individual dendritic spines.
09:42
Morphological Analysis of Drosophila Larval Peripheral Sensory Neuron Dendrites and Axons Using Genetic Mosaics
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Cited by 16 •
2011
The dendritic arborization sensory neurons of the Drosophila larval peripheral nervous system are useful models to elucidate both general and neuron class-specific mechanisms of neuron differentiation. We present a practical guide to generate and analyze dendritic arborization neuron genetic mosaics.
FAQs
Growth cones act as responsive structures at extending neuronal projections. They detect extracellular guidance cues and adjust the underlying actin and microtubule cytoskeletons according to local signals. These responses influence where the projection extends, how it branches, and how membrane expansion supports continued growth, helping guide developing neurons toward appropriate connectivity.
Actin and microtubules provide coordinated cytoskeletal control during projection growth. Their regulation allows developing neuronal processes to change shape, extend, and form branches while accommodating membrane expansion. Because growth cones use these cytoskeletal systems to respond to local guidance signals, their activity links extracellular information with the physical remodeling required for organized neural development.
Local extracellular cues provide spatial information that helps growing neuronal projections respond to their surroundings. Through growth-cone signaling and cytoskeletal regulation, these cues can influence elongation, branching, and the direction of extension. This localized control is important for establishing neuronal polarity and organizing projections so that developing circuits acquire appropriate connectivity.
Examining both types of neuronal projections gives a broader view of how developing neurons organize their connections. Their growth and shaping contribute to neuronal polarity, circuit formation, and synaptic connectivity. Considering both processes helps researchers relate projection development to the assembly of functional neural networks rather than treating connectivity as the result of a single growth process.
Researchers can examine projection elongation, membrane expansion, branching, and overall organization as developing neurons respond to local signals. They can also relate these structural changes to neuronal polarity, circuit formation, and synaptic connectivity. These outcomes provide a way to connect cellular growth behavior with the larger process of neural-network assembly.
Studies of axonal and dendritic growth can clarify how neural connectivity is established and how it may become altered in neurodevelopmental disorders. The same developmental processes also provide context for understanding whether connectivity might be supported after nervous-system injury. Thus, growth research connects basic developmental mechanisms with questions about disrupted or repaired neural organization.