Enteroendocrine Neurons in Neurodegeneration

Enteroendocrine Neurons in Neurodegeneration

Introduction

<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Enteroendocrine Neurons in Neurodegeneration</th>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000164](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000164)</td>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000164](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000164)</td>
</tr>
<tr>
<td class="label">Cell Type</td>
<td>Primary Signal</td>
</tr>
<tr>
<td class="label">I cells</td>
<td>CCK</td>
</tr>
<tr>
<td class="label">K cells</td>
<td>GIP</td>
</tr>
<tr>
<td class="label">L cells</td>
<td>GLP-1, PYY</td>
</tr>
<tr>
<td class="label">S cells</td>
<td>Secretin</td>
</tr>
<tr>
<td class="label">N cells</td>
<td>Neurotensin</td>
</tr>
<tr>
<td class="label">Enterochromaffin</td>
<td>Serotonin</td>
</tr>
<tr>
<td class="label">Approach</td>
<td>Target</td>
</tr>
<tr>
<td class="label">Probiotics</td>
<td>Microbiome</td>
</tr>
<tr>
<td class="label">Fecal transplant</td>
<td>Microbiome</td>
</tr>
<tr>
<td class="label">GLP-1 agonists</td>
<td>Hormonal signaling</td>
</tr>
<tr>
<td class="label

Enteroendocrine Neurons in Neurodegeneration

Introduction

<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Enteroendocrine Neurons in Neurodegeneration</th>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:0000164](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000164)</td>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:0000164](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000164)</td>
</tr>
<tr>
<td class="label">Cell Type</td>
<td>Primary Signal</td>
</tr>
<tr>
<td class="label">I cells</td>
<td>CCK</td>
</tr>
<tr>
<td class="label">K cells</td>
<td>GIP</td>
</tr>
<tr>
<td class="label">L cells</td>
<td>GLP-1, PYY</td>
</tr>
<tr>
<td class="label">S cells</td>
<td>Secretin</td>
</tr>
<tr>
<td class="label">N cells</td>
<td>Neurotensin</td>
</tr>
<tr>
<td class="label">Enterochromaffin</td>
<td>Serotonin</td>
</tr>
<tr>
<td class="label">Approach</td>
<td>Target</td>
</tr>
<tr>
<td class="label">Probiotics</td>
<td>Microbiome</td>
</tr>
<tr>
<td class="label">Fecal transplant</td>
<td>Microbiome</td>
</tr>
<tr>
<td class="label">GLP-1 agonists</td>
<td>Hormonal signaling</td>
</tr>
<tr>
<td class="label">5-HT modulation</td>
<td>Serotonin pathway</td>
</tr>
</table>

Enteroendocrine Neurons 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.

Enteroendocrine Neurons are specialized sensory cells in the gastrointestinal tract that detect nutrients and chemical signals, connecting the gut to the brain through neural and hormonal pathways. These cells are increasingly recognized for their role in gut-brain axis communication and their involvement in neurodegenerative disease pathogenesis. [@sampson2016]

Overview

Enteroendocrine cells (EECs) constitute the largest endocrine organ in the body and include multiple cell types that: [@cryan2019]

• Sense luminal contents
• Release signaling molecules
• Communicate with enteric nervous system
• Modulate brain function via neural and hormonal pathways

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

Multi-Taxonomy Classification

Taxonomy Database Cross-References

PanglaoDB Marker Cross-References

• Unknown (PanglaoDB):

External Database Links

• [Cell Ontology (CL:0000164)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000164)
• [OBO Foundry (CL:0000164)](http://purl.obolibrary.org/obo/CL_0000164)
• [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:0000164)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_0000164)
• [OBO Foundry (CL:0000164)](http://purl.obolibrary.org/obo/CL_0000164)
• [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/)

Cell Types

Major Subtypes

Gut-Brain Communication

Neural Pathways

Key Signaling Molecules

• Serotonin (5-HT): Enterochromaffin cells produce 95% of body serotonin
• GLP-1: Glucagon-like peptide-1, affects appetite and cognition
• PYY: Peptide YY, satiety signaling
• CCK: Cholecystokinin, gut-brain peptide
• GABA: Inhibitory neurotransmitter
• Dopamine: Reward and movement

Disease Connections

Parkinson's Disease

• [Alpha-synuclein in enteric nervous system
• Lewy bodies in gut neurons early in disease
• Constipation as prodromal symptom
• Vagus nerve as propagation route

Alzheimer's Disease

• Gut microbiome alterations
• Inflammatory markers linked to AD
• Serotonin production changes
• Nutrient sensing dysregulation

ALS/FTD

• GI dysfunction in ALS patients
• Gut microbiome changes
• Metabolic alterations
• Inflammation propagation

Mechanisms of Neurodegeneration

Inflammation

• Bacterial translocation
• Systemic inflammation
• Cytokine entry into brain
• Microglial activation

Protein Misfolding

• Gut as initiation site for α-syn
• Prion-like propagation along vagus
• Tissue cross-contamination

Metabolic Dysfunction

• Nutrient sensing impairment
• Hormonal signaling disruption
• Energy homeostasis changes

Therapeutic Implications

Targeting the Gut-Brain Axis

Biomarkers

• Serum serotonin metabolites
• Gut hormone levels
• Microbiome analysis
• Inflammatory markers

Research Methods

Experimental Approaches

• Organoid-gut-brain models
• Tracing studies
• Germ-free animal models
• Gnotobiotics

Clinical Research

• Endoscopy with biopsy
• Microbiome sequencing
• Metabolomics
• Functional imaging

Background

The study of Enteroendocrine Neurons 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.

See Also

• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Amyloid Hypothesis](/mechanisms/amyloid-hypothesis)
• [Tau Pathology](/mechanisms/tau-pathology)
• [Parkinson's Disease](/diseases/parkinsons-disease)
• [Alpha-Synuclein Pathway](/mechanisms/alpha-synuclein-pathology)

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

Cross-References

• [Gut-Brain Axis](/entities/gut-brain-axis)
• [Enteric Nervous System](/entities/enteric-nervous-system)
• [Neuroinflammation](/mechanisms/neuroinflammation)
• [Parkinson's Disease](/diseases/parkinsons-disease)
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Microbiome](/entities/microbiome)

Pathway Diagram

The following diagram shows the key molecular relationships involving Enteroendocrine Neurons in Neurodegeneration discovered through SciDEX knowledge graph analysis: