Ager Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
AGER encodes [RAGE](/genes/rage) (Receptor for Advanced Glycation End Products), a pattern recognition receptor involved in inflammation and neurodegeneration. [@srikanth2011]
Overview
Mermaid diagram (expand to render)
Function
[RAGE](/entities/rage-receptor) is a multi-ligand receptor that binds:
Advanced glycation end products (AGEs)
HMGB1 (High Mobility Group Box 1)
S100B protein
Amyloid-beta fibrils
DNA release from damaged cells
Signaling Pathways
[NF-κB](/entities/nf-kb) activation → pro-inflammatory cytokine production
Therapeutic target: RAGE inhibitors in development
Parkinson's Disease
RAGE involved in dopaminergic neuron death
Links [alpha-synuclein](/proteins/alpha-synuclein) pathology to inflammation
Elevated in substantia nigra of PD patients
ALS
HMGB1-RAGE signaling in motor neuron disease
Contributes to neuroinflammation
Therapeutic Targeting
Key Publications
Stern D, et al. (2002) "RAGE: a novel target for drug intervention in diabetic complications." Current Opinion in Investigational Drugs*. PMID: 12502350(https://pubmed.ncbi.nlm.nih.gov/12502350/)
Srikanth V, et al. (2011) "Role of advanced glycation end products (RAGE) in the brain and its implications for [Alzheimer's disease](/diseases/alzheimers-disease)." Journal of Alzheimer's Disease. PMID: 21593570(https://pubmed.ncbi.nlm.nih.gov/21593570/)
Casserly I, Topol E (2004) "Convergence of atherosclerosis and Alzheimer's disease: inflammation as a common pathway." Lancet. PMID: 15531297(https://pubmed.ncbi.nlm.nih.gov/15531297/)
Liu R, Gao F, et al. (2021) "RAGE mediates Aβ-induced [tau](/proteins/tau) pathology and synaptic dysfunction." Acta Neuropathologica Communications. PMID: 33910657(https://pubmed.ncbi.nlm.nih.gov/33910657/)
Chen X, et al. (2019) "Targeting RAGE as a therapeutic strategy for neurodegenerative diseases." Drug Discovery Today. PMID: 31734362(https://pubmed.ncbi.nlm.nih.gov/31734362/)
RAGE Structure and Isoforms
The RAGE receptor exists in multiple isoforms:
The extracellular domain contains one V-type (variable) domain and two C-type (constant) domains, responsible for ligand binding.
RAGE-related biomarkers for neurodegenerative diseases:
sRAGE levels: Lower in AD and PD patients
HMGB1: Elevated in CSF of AD patients
RAGE expression: Upregulated in affected brain regions
Background
The study of Ager Gene 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.
Brain Atlas Resources
[Allen Human Brain Atlas - ager Expression](https://human.brain-map.org/microarray/search/show?search_term=ager)](/datasets/allen-human-brain-atlas)
[Allen Cell Type Atlas - ager](https://celltypes.brain-map.org/)
[Stern D, et al, (2002) "RAGE: a novel target for drug intervention." Current Opinion in Investigational Drugs (2002)](https://pubmed.ncbi.nlm.nih.gov/12502350/)
[Srikanth V, et al, (2011) "RAGE and Alzheimer's disease." Journal of Alzheimer's Disease (2011)](https://pubmed.ncbi.nlm.nih.gov/21593570/)
[Unknown, Casserly I, Topol E (2004) "Convergence of atherosclerosis and Alzheimer's disease." Lancet (2004)](https://pubmed.ncbi.nlm.nih.gov/15531297/)
Related Hypotheses
From the [SciDEX Exchange](/exchange) — scored by multi-agent debate
[Blocking AGE-RAGE Signaling in Enteric Glia to Prevent Neuroinflammatory Cascade](/hypothesis/h-8f285020) — <span style="color:#ffd54f;font-weight:600">0.49</span> · Target: AGER
Pathway Diagram
The following diagram shows the key molecular relationships involving AGER Gene discovered through SciDEX knowledge graph analysis: