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Satellite Glial Cells - Expanded
Satellite Glial Cells - Expanded
Introduction
<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Satellite Glial Cells - Expanded</th>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000514](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000514)</td>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000514](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000514)</td>
</tr>
<tr>
<td class="label">Condition</td>
<td>SGC Changes</td>
</tr>
<tr>
<td class="label">Chronic pain</td>
<td>Proliferation, GFAP increase</td>
</tr>
<tr>
<td class="label">Diabetic neuropathy</td>
<td>Metabolic dysfunction</td>
</tr>
<tr>
<td class="label">Migraine</td>
<td>Trigeminal SGC activation</td>
</tr>
<tr>
<td class="label">Neurodegeneration</td>
<td>Variable involvement</td>
</tr>
</table>
Satellite Glial Cells Expanded 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
...Satellite Glial Cells - Expanded
Introduction
<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Satellite Glial Cells - Expanded</th>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000514](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000514)</td>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000514](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000514)</td>
</tr>
<tr>
<td class="label">Condition</td>
<td>SGC Changes</td>
</tr>
<tr>
<td class="label">Chronic pain</td>
<td>Proliferation, GFAP increase</td>
</tr>
<tr>
<td class="label">Diabetic neuropathy</td>
<td>Metabolic dysfunction</td>
</tr>
<tr>
<td class="label">Migraine</td>
<td>Trigeminal SGC activation</td>
</tr>
<tr>
<td class="label">Neurodegeneration</td>
<td>Variable involvement</td>
</tr>
</table>
Satellite Glial Cells Expanded 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
Satellite Glial Cells (SGCs) are specialized glial cells that ensheath neuronal cell bodies in peripheral ganglia, including dorsal root ganglia (DRG), trigeminal ganglia, and autonomic ganglia. These cells play crucial roles in sensory processing, pain transmission, and ganglion homeostasis. [@huang2020]
<!-- taxonomy-enrichment --> [@vit2008]
<!-- multi-taxonomy-enrichment -->
Multi-Taxonomy Classification
Taxonomy Database Cross-References
PanglaoDB Marker Cross-References
- Unknown (PanglaoDB):
External Database Links
- [Cell Ontology (CL:0000514)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000514)
- [OBO Foundry (CL:0000514)](http://purl.obolibrary.org/obo/CL_0000514)
- [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/)
- [PanglaoDB](https://panglaodb.se/)
Taxonomy & Classification
PanglaoDB Marker Cross-References
- Unknown (PanglaoDB):
External Database Links
- [Cell Ontology (CL:0000514)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000514)
- [OBO Foundry (CL:0000514)](http://purl.obolibrary.org/obo/CL_0000514)
- [Allen Brain Cell Atlas](https://portal.brain-map.org/atlases-and-data/bkp/abc-atlas)
- [CellxGene Census](https://cellxgene.cziscience.com/)
- [PanglaoDB](https://panglaodb.se/)
Cellular Characteristics
Morphology
- Location: Surround neuronal soma in peripheral ganglia
- Shape: Flattened, envelope-like cells
- Coverage: Each neuron typically covered by 1-3 SGC layers
- Gap junctions: Connect SGCs for communication
Key Markers
- Glutamine synthetase (GS): Glial marker
- S100β: Calcium-binding protein
- [GFAP](/entities/gfap): Glial fibrillary acidic protein (upregulated in pathology)
- Connexin 43 (Cx43): Gap junction protein
- GLT-1: Glutamate transporter
- Kir4.1: Potassium channel
Primary Functions
Neuronal Support
Barrier Function
- Perineuronal barrier: Separate neuronal microenvironment
- Molecular filtering: Regulate substance exchange
- Immune protection: Shield neurons from immune cells
Modulation of Neuronal Activity
- Glutamate clearance: Prevent excitotoxicity
- K+ buffering: Regulate neuronal excitability
- ATP metabolism: Convert ATP to adenosine
Role in Neurodegeneration
Chronic Pain
Diabetic Neuropathy
- Metabolic dysfunction: Glucose transport impairment
- Oxidative stress: Increased [ROS](/entities/reactive-oxygen-species) production
- K+ dysregulation: Altered channel expression
Chemotherapy-Induced Neuropathy
- Drug uptake: Some chemotherapeutics target SGCs
- Support loss: Neuronal dysfunction secondary to SGC changes
Amyotrophic Lateral Sclerosis
- Sensory ganglia involvement: Some ALS forms
- Autonomic dysfunction: Autonomic ganglion changes
Molecular Pathways
Activation in Pathology
Ion Channel Dysregulation
- Kir4.1 downregulation: K+ buffering impairment
- TRPV1 sensitization: Pain pathway activation
- P2X7 receptor: ATP-gated ion channel
Clinical Relevance
Pain Therapeutics
- Gap junction blockers: Carbenoxolone
- P2X7 antagonists: Emerging targets
- Cytokine modulators: Anti-inflammatory approaches
Biomarkers
- SGC-derived factors in blood/CSF
- GFAP levels: Activation marker
- Cytokine profiles: Inflammatory state
Disease Associations
Background
The study of Satellite Glial Cells Expanded 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
- [International Association for the Study of Pain](https://www.iasp-pain.org/)
- [Nature Reviews Neurology](https://www.nature.com/nrneurol/)
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