Cerebellar Granule Neurons
Cerebellar Granule Neurons - Related Videos
01:59
Modeling Neuronal Injury in Mouse Primary Cerebellar Granule Neurons
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2025
This video demonstrates the generation of a neuronal injury model in mouse primary cerebellar granule neurons. It outlines the steps involved in inducing neuronal injury using NMDA, an excitatory neurotransmitter receptor agonist, and glycine, a co-agonist. NMDA and glycine bind to specific neuronal receptors, causing their overstimulation and resulting in a massive intracellular calcium influx, which leads to neuronal cell damage and death.
10:36
Modeling Neuronal Death and Degeneration in Mouse Primary Cerebellar Granule Neurons
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Cited by 2 •
2017
This protocol describes a simple method for isolating and culturing primary mouse cerebral granule neurons (CGNs) from 6-7 day old pups, efficient transduction of CGNs for loss and gain of function studies, and modelling NMDA-induced neuronal excitotoxicity, low-potassium-induced cell death, DNA-damage, and oxidative stress using the same culture model.
05:49
Isolation and Culture of Mouse Primary Cerebellar Granule Neurons
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2025
This video demonstrates the technique for isolating and culturing primary mouse cerebellar granule neurons. Cells are treated with an antimetabolite to eliminate proliferating glial cells and produce a pure culture of cerebellar granule neurons.
03:04
Visualizing the Synaptogenesis of Cerebellar Granule Neurons at Different Developmental Stages
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2025
Source: Chan, U., et al., Utilizing In Vivo Postnatal Electroporation to Study Cerebellar Granule Neuron Morphology and Synapse Development. J. Vis. Exp. (2021).This video demonstrates the analysis of cerebellar granule neuron development by imaging pre-fixed brain tissue slices from mice labeled with a fluorescent protein, capturing high-resolution z-stack images with a confocal microscope, and measuring structural parameters including neurite length, dendritic claw formation, surface area,...
09:07
Genetic Manipulation of Cerebellar Granule Neurons In Vitro and In Vivo to Study Neuronal Morphology and Migration
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Cited by 8 •
2014
Neuronal morphogenesis and migration are crucial events underlying proper brain development. Here, we describe methods to genetically manipulate cultured cerebellar granule neurons and the developing cerebellum for the assessment of morphology and migratory characteristics of neurons.
FAQs
Mossy fibers provide excitatory glutamatergic input to granule neuron dendrites within specialized structures called glomeruli. This arrangement concentrates incoming signals at defined synaptic sites, allowing the neurons to receive and process signals before transmitting them onward. Studying glomerular organization therefore helps explain how sensory inputs are incorporated into cerebellar circuit activity.
After entering the molecular layer, each granule neuron axon bifurcates into parallel fibers. These fibers activate Purkinje cells, creating a pathway through which granule-cell signals influence the cerebellar cortex. The arrangement links local dendritic input with distributed output across the molecular layer, making it relevant to investigations of coordinated movement and cerebellar learning.
Activity-dependent plasticity changes how neural circuits respond as their activity patterns change. In granule neurons and their connections, this property provides a framework for studying how incoming signals can be associated with learning-related changes in cerebellar processing. It is especially relevant to understanding how circuit activity contributes to improved coordination and adaptive motor control.
Following these neurons across development allows researchers to examine how neurogenesis, neuronal wiring, and functional connectivity emerge in the cerebellar cortex. Their developmental trajectory provides a model for connecting the production of neurons with the establishment of synaptic circuits. This makes them useful for studying how genetic or environmental disruption may alter brain organization.
Their abundance, defined position in cerebellar circuitry, and participation in excitatory input pathways make these neurons informative for several biological questions. Researchers can use them to investigate neurogenesis, synaptic circuit formation, sensory integration, and motor control within one system. Findings can also clarify how cellular changes influence broader cerebellar functions.
Analyses of synaptic wiring can show how mossy fiber inputs are connected to granule neuron dendrites and how granule-cell axons engage Purkinje cells through parallel fibers. These relationships reveal how signals move through the cerebellar cortex. Comparing wiring and activity also supports research on circuit function, learning, and coordinated movement.
Because these neurons participate in cerebellar signal processing, developmental studies can reveal how altered neurogenesis, connectivity, or activity affects circuit function. Researchers can examine the consequences of genetic or environmental disruption in this cellular and circuit context. Such work helps clarify mechanisms that may contribute to cerebellar disorders without treating the neurons as an isolated system.
Signals arriving through mossy fibers are processed by granule neurons and transmitted through parallel fibers to Purkinje cells. This pathway provides a cellular framework for examining how sensory information is incorporated into cerebellar activity and translated into coordinated movement. Activity-dependent changes within the circuit further connect this organization with motor learning.