Retinal Ganglion Cells in Neurodegeneration

Retinal Ganglion Cells in Neurodegeneration

Introduction

<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Retinal Ganglion Cells in Neurodegeneration</th>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000740](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000740)</td>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000740](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000740)</td>
</tr>
<tr>
<td class="label">Process</td>
<td>Change</td>
</tr>
<tr>
<td class="label">[Apoptosis](/entities/apoptosis)</td>
<td>Increased (Bax, caspases)</td>
</tr>
<tr>
<td class="label">[Autophagy](/entities/autophagy)</td>
<td>Impaired</td>
</tr>
<tr>
<td class="label">Mitochondria</td>
<td>Dysfunctional</td>
</tr>
<tr>
<td class="label">Neuroinflammation</td>
<td>Microglial activation</td>
</tr>
<tr>
<td class="label">Excitotoxicity</td>
<td>Glutamate accumulation</td>
</tr>
</table>

Retinal Ganglion Cells In Neurodegeneration is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

Retinal Ganglion Cells in Neurodegeneration

Introduction

<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Retinal Ganglion Cells in Neurodegeneration</th>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000740](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000740)</td>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000740](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000740)</td>
</tr>
<tr>
<td class="label">Process</td>
<td>Change</td>
</tr>
<tr>
<td class="label">[Apoptosis](/entities/apoptosis)</td>
<td>Increased (Bax, caspases)</td>
</tr>
<tr>
<td class="label">[Autophagy](/entities/autophagy)</td>
<td>Impaired</td>
</tr>
<tr>
<td class="label">Mitochondria</td>
<td>Dysfunctional</td>
</tr>
<tr>
<td class="label">Neuroinflammation</td>
<td>Microglial activation</td>
</tr>
<tr>
<td class="label">Excitotoxicity</td>
<td>Glutamate accumulation</td>
</tr>
</table>

Retinal Ganglion Cells In Neurodegeneration is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

Overview

This page provides comprehensive information about the cell type. See the content below for detailed information. [@lim2016]

Retinal ganglion cells (RGCs) are the output [neurons](/entities/neurons) of the retina whose degeneration is a hallmark of glaucoma and occurs in various neurodegenerative diseases. The retina offers a unique window to study CNS neurodegeneration non-invasively. [@bodiswollner2013]

<!-- taxonomy-enrichment -->

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

Multi-Taxonomy Classification

Taxonomy Database Cross-References

PanglaoDB Marker Cross-References

• Unknown (PanglaoDB):

External Database Links

• [Cell Ontology (CL:0000740)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000740)
• [OBO Foundry (CL:0000740)](http://purl.obolibrary.org/obo/CL_0000740)
• [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:0000740)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000740)
• [OBO Foundry (CL:0000740)](http://purl.obolibrary.org/obo/CL_0000740)
• [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/)

RGC Subtypes

By Function

• Midget cells - Parvocellular pathways
• Parasol cells - Magnocellular pathways
• Koniocellular cells - Blue/yellow pathways
• Intrinsically photosensitive RGCs - ipRGCs (melanopsin)

By Axonal Projections

• P-type - To pretectal nuclei
• M-type - To superior colliculus
• K-type - Various targets
• Photo-entrainment - To SCN

Neurodegeneration in Glaucoma

Pathological Features

• RGC loss - Progressive, irreversible
• Optic nerve degeneration - Cupping
• Axonal transport disruption - Somatodendritic compartment
• Synaptic alterations - Inner plexiform layer

Molecular Mechanisms

Alzheimer's Disease Retina Changes

Findings

• RGC layer thinning - OCT evidence
• Amyloid deposits - Retinal plaques
• [Tau](/proteins/tau) pathology - Phosphorylated tau
• Vascular changes - Reduced blood flow

Biomarker Potential

• Retinal imaging for early detection
• Amyloid detection in retina
• Correlation with brain pathology

Parkinson's Disease Retina Changes

Dopaminergic Amacrine Loss

• Reduced tyrosine hydroxylase
• Visual dysfunction
• Contrast sensitivity deficits
• Color vision abnormalities

RGC Involvement

• Specific subtype vulnerability
• Optical coherence tomography changes
• Correlation with disease progression

Therapeutic Approaches

Neuroprotection

Cell Replacement

• Stem cell-derived RGCs
• Retinal transplantation
• Optic nerve regeneration

Background

The study of Retinal Ganglion Cells In Neurodegeneration 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

• [PubMed](https://pubmed.ncbi.nlm.nih.gov/) - Biomedical literature
• [Alzheimer's Disease Neuroimaging Initiative](https://adni.loni.usc.edu/) - Research data
• [Allen Brain Atlas](https://brain-map.org/) - Brain gene expression data

See Also

• [Sodium Oligomannate (GV-971) for Alzheimer's Disease](/wiki/therapeutics-sodium-oligomannate-gv971) — expressed_in
• [RIPK1 (Receptor-Interacting Kinase 1)](/wiki/proteins-ripk1) — regulates
• [OPTN Protein (Optineurin)](/wiki/proteins-optn) — expressed_in
• [MTOR Gene](/wiki/genes-mtor) — expressed_in
• [SIRT6 Gene](/wiki/genes-sirt6) — protects_against
• [Microglia Depletion and Repopulation Therapy](/wiki/therapeutics-microglia-depletion-repopulation) — activates

Pathway Diagram

The following diagram shows the key molecular relationships involving Retinal Ganglion Cells in Neurodegeneration discovered through SciDEX knowledge graph analysis: