Calcitonin Gene-Related Peptide (CGRP) Neurons

📖 Wiki Page

cell646 wordssynced 2026-04-02

Introduction

<table class="infobox infobox-cell">
<tr>
<th class="infobox-header" colspan="2">Calcitonin Gene-Related Peptide (CGRP) Neurons</th>
</tr>
<tr>
<td class="label">Taxonomy</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology (CL)</td>
<td>[CL:4042034](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_4042034)</td>
</tr>
<tr>
<td class="label">Database</td>
<td>ID</td>
</tr>
<tr>
<td class="label">Cell Ontology</td>
<td>[CL:4042034](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_4042034)</td>
</tr>
<tr>
<td class="label">Gene</td>
<td>Function</td>
</tr>
<tr>
<td class="label">CALCA</td>
<td>Alpha-CGRP precursor</td>
</tr>
<tr>
<td class="label">CALCB</td>
<td>Beta-CGRP precursor</td>
</tr>
<tr>
<td class="label">CALCRL</td>
<td>Calcitonin receptor-like receptor</td>
</tr>
<tr>
<td class="label">RAMP1</td>
<td>Receptor activity-modifying protein 1</td>
</tr>
<tr>
<td class="label">RAMP2</td>
<td>Receptor activity-modifying protein 2</td>
</tr>
</table>

Calcitonin Gene Related Peptide (Cgrp) Neurons is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

...

Introduction

Calcitonin Gene-Related Peptide (CGRP) is a 37-amino acid neuropeptide widely distributed in both the central and peripheral nervous systems. CGRP is one of the most abundant neuropeptides and plays critical roles in pain transmission, neurovascular regulation, migraine, and autonomic function. [@cgrpa]

Overview

Mermaid diagram (expand to render)

Calcitonin Gene-Related Peptide Neurons are specialized neurons in the brain that play important roles in neurological function and are relevant to neurodegenerative diseases. These neurons are involved in critical processes such as neurotransmitter regulation, autonomic control, or sensory processing. [@cgrpb]

Dysfunction or degeneration of these neurons contributes to the pathogenesis of Alzheimer's disease, Parkinson's disease, and related neurodegenerative disorders through effects on neurotransmitter systems, cellular metabolism, or neural circuit function. [@cgrpc]

--- [@cgrpd]

[@cgrpe]

[@cgrpf]

Multi-Taxonomy Classification

Taxonomy Database Cross-References

Morphology & Electrophysiology

Morphology: CGRP-expressing neuron (source: Cell Ontology)
Morphology can be inferred from Cell Ontology classification

External Database Links

[Cell Ontology (CL:4042034)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_4042034)
[OBO Foundry (CL:4042034)](http://purl.obolibrary.org/obo/CL_4042034)
[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/)

Taxonomy & Classification

External Database Links

[Cell Ontology (CL:4042034)](https://www.ebi.ac.uk/ols4/ontologies/cl/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FCL_4042034)
[OBO Foundry (CL:4042034)](http://purl.obolibrary.org/obo/CL_4042034)
[Allen Brain Cell Atlas](https://portal.brain-map.org/atlases-and-data/bkp/abc-atlas)
[CellxGene Census](https://cellxgene.cziscience.com/)

Morphology and Markers

CGRP-expressing neurons are characterized by:

CALCA/CALCB: CGRP precursor genes
CALCRL/RAMP1: CLR/RAMP1 receptor complex
NeuN: Neuronal marker
NF200: Neurofilament marker

CGRP neurons exhibit diverse morphology:

Pseudounipolar: Dorsal root ganglion neurons
Multipolar: Central nervous system neurons
Bipolar: Some sensory neurons

Normal Function

Pain Transmission

CGRP is a key neuropeptide in pain pathways:

Primary afferent nociceptors
Spinal cord dorsal horn transmission
Central pain processing
Neurogenic inflammation

Migraine Pathogenesis

CGRP is central to migraine:

Released from trigeminal afferents
Vasodilation of cerebral vessels
Trigeminal nucleus caudalis activation
CGRP receptor antagonists (gepants) are effective

Autonomic Regulation

CGRP in autonomic centers:

Cardiovascular control
Thermoregulation
Smooth muscle relaxation
Blood flow regulation

Feeding Behavior

Hypothalamic CGRP:

Anorexigenic effects
Leptin interaction
Energy homeostasis

Disease Vulnerability

Migraine

Elevated CGRP during attacks
CGRP receptor antagonists (erenumab, fremanezumab)
CGRP monoclonal antibodies prevent attacks
Trigeminal neuralgia involvement

Alzheimer's Disease

CGRP in neuroinflammation
Interaction with amyloid pathology
Cognitive function modulation
Potential therapeutic target

Parkinson's Disease

Altered CGRP in PD
Autonomic dysfunction
Non-motor symptoms

Neuropathic Pain

CGRP upregulation in nerve injury
Targeted antagonists
analgesic potential

Multiple Sclerosis

CGRP in demyelination
Neuroimmune interactions
Disease progression

Transcriptomic Profile

Therapeutic Implications

Migraine Prevention

Erenumab: CGRP receptor antibody
Fremanezumab: CGRP antibody
Rimegepant: CGRP receptor antagonist
Ubrogepant: CGRP receptor antagonist

Pain Management

CGRP receptor antagonists
Small molecule inhibitors
Gene therapy approaches

Cardiovascular

CGRP in blood flow regulation
Potential for stroke treatment

Background

The study of Calcitonin Gene Related Peptide (Cgrp) Neurons 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

[CGRP - Uniprot](https://www.uniprot.org)
[Migraine Treatment - AAN](https://www.aan.com)

Pathway Diagram

The following diagram shows the key molecular relationships involving Calcitonin Gene-Related Peptide (CGRP) Neurons discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

📖 View canonical wiki page →