Regular Spiking Basket Cells

Regular Spiking (RS) Basket Cells

<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Regular Spiking Basket Cells</th>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000118](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000118)</td>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000118](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000118)</td>
</tr>
</table>

Introduction

Regular Spiking Basket Cells is an important cell type in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

Regular spiking (RS) basket cells constitute a major class of cortical GABAergic interneurons characterized by their adapting electrophysiological firing pattern and distinctive perisomatic targeting axonal projections. These neurons play fundamental roles in regulating cortical excitability, generating oscillatory activity, and controlling pyramidal neuron output[@markram2004][@freund2007].

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Taxonomy & Classification

External Database Links

...

Regular Spiking (RS) Basket Cells

<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Regular Spiking Basket Cells</th>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000118](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000118)</td>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000118](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000118)</td>
</tr>
</table>

Introduction

Regular Spiking Basket Cells is an important cell type in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

Regular spiking (RS) basket cells constitute a major class of cortical GABAergic interneurons characterized by their adapting electrophysiological firing pattern and distinctive perisomatic targeting axonal projections. These neurons play fundamental roles in regulating cortical excitability, generating oscillatory activity, and controlling pyramidal neuron output[@markram2004][@freund2007].

<!-- multi-taxonomy-enrichment -->

<!-- taxonomy-enrichment -->

Taxonomy & Classification

External Database Links

• [Cell Ontology (CL:0000118)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000118)
• [OBO Foundry (CL:0000118)](http://purl.obolibrary.org/obo/CL_0000118)
• [Allen Brain Cell Atlas](https://portal.brain-map.org/atlases-and-data/bkp/abc-atlas)
• [CellxGene Census](https://cellxgene.cziscience.com/)

Multi-Taxonomy Classification

Taxonomy Database Cross-References

Morphology & Electrophysiology

• Morphology: basket cell (source: Cell Ontology)
• Morphology can be inferred from Cell Ontology classification

External Database Links

• [Cell Ontology (CL:0000118)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000118)
• [OBO Foundry (CL:0000118)](http://purl.obolibrary.org/obo/CL_0000118)
• [Allen Brain Cell Atlas](https://portal.brain-map.org/atlases-and-data/bkp/abc-atlas)
• [CellxGene Census](https://cellxgene.cziscience.com/)
• [Human Cell Atlas](https://www.humancellatlas.org/)

Morphology

Somatic Targeting

RS basket cells are defined by their axonal targeting pattern:

• Perisomatic innervation: Axonal boutons primarily target pyramidal neuron somata
• Proximal dendrites: Secondary innervation of proximal dendritic regions
• Basket-like appearance: Dense perisomatic terminations form basket-like structures
• Layer 2/3 enrichment: Highest density in supragranular layers

Axonal Arborization

Key axonal features include:

• Horizontal spread: Extensive lateral axonal arbors (200-400 μm)
• Columnar projections: Axons often span multiple cortical columns
• Interneuron specificity: Selective targeting of principal neurons
• Synaptic specializations: Powerful somatic inhibition

Cellular Diversity

RS basket cells display heterogeneity:

• Small basket cells: Dendritic targeting subtypes
• Large basket cells: Dense somatic innervation
• Nest basket cells: Intermediate characteristics

Neurophysiology

Firing Properties

RS basket cells exhibit characteristic patterns:

• Regular spiking: Adapting firing during sustained depolarization
• Action potential waveform: Broader spikes than fast-spiking cells
• Frequency adaptation: Decreased firing rate over time
• Low threshold: Moderate depolarization thresholds

Electrophysiological Markers

Distinguishing features from fast-spiking (FS) basket cells:

• Spike duration: ~0.6-1.0 ms (vs ~0.3-0.5 ms in FS)
• Maximal firing rate: Lower (~100-200 Hz vs >300 Hz)
• Sag potential: Often present in response to hyperpolarization

Molecular Markers

RS basket cells express specific markers:

• Parvalbumin (PV): Present in ~70% of RS basket cells
• Calbindin (CB): Subset expression
• Somatostatin (SST): Small percentage
• Cholecystokinin (CCK): Specific subpopulations
• Vasoactive intestinal peptide (VIP): Rare

Circuit Function

Inhibition of Principal Neurons

RS basket cells provide powerful inhibition:

• Somatic shutdown: Rapid inhibition of action potential generation
• Gain control: Regulate pyramidal neuron output
• Feedforward inhibition: Process sensory information
• Feedback inhibition: Respond to pyramidal activity

Network Oscillations

Basket cells contribute to cortical rhythms:

• Gamma oscillations (30-80 Hz): Coordinate sensory processing
• Sharp-wave ripples: Memory consolidation
• Theta oscillations: Hippocampal-cortical communication

Cortical Processing

Functions in cortical computation:

• Feature selectivity: Enhance sensory discrimination
• Decorrelation: Reduce redundancy in neural codes
• Normalization: Maintain stable firing rates
• Winner-take-all: Competitive processing

Role in Neurodegenerative Diseases

Alzheimer's Disease

RS basket cell dysfunction in AD:

• Impaired gamma oscillation generation
• Reduced somatic inhibition of pyramidal cells
• Circuit hyperexcitability
• Correlation with memory deficits

Parkinson's Disease

Basket cell alterations in PD:

• Dysregulated cortical inhibition
• Changes in CCK+ basket cells
• Contribution to movement-related cortical processing
• Altered oscillations in basal ganglia-cortical loops

Epilepsy

RS basket cells in seizure disorders:

• Loss of perisomatic inhibition
• Reduced gamma generation
• Circuit instability
• Target for therapeutic intervention

Schizophrenia

Basket cell abnormalities:

• Reduced PV expression
• Impaired gamma synchronization
• Cognitive processing deficits

Therapeutic Implications

Treatment Targets

RS basket cells represent therapeutic targets:

• Antiepileptic drugs: Enhance basket cell function
• Cognitive enhancement: Modulate gamma oscillations
• Neurodegeneration: Preserve inhibitory neurons

Research Directions

Current research focuses on:

• Basket cell development
• Transplantation potential
• Optogenetic manipulation
• Circuit repair strategies

Background

The study of Regular Spiking Basket Cells has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.

Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.

External Links

• [Brain Cell Atlas](https://www.braincellinfo.org)
• [Allen Brain Map](https://www.brain-map.org)
• [NIH - Cell Types Database](https://www.ninds.nih.gov)