C-X-C Chemokine Receptor Type 4
CXCR4geneCXCR4 mediates CXCL12-driven platelet activation and pro-thrombotic signaling, contributing to atherothrombotic cascade.
Pathway placement
Cascade stepPlatelet adhesion & activation
Confidencemedium
RationalePlatelet CXCL12 receptor; pro-thrombotic signaling and platelet activation.
Also acts inVascular inflammation, Endothelial activation/erosion
Druggability
DruggableYes
Known drugs / candidates8
Small-molecule tractableYes
Antibody tractableYes
EnsemblENSG00000121966
Type I vs Type II discrimination
ScoresIndeterminate
R — rupture / Type-I67
C — confounder / Type-II40
A — assay feasibility52
E — evidence strength86
T1DI (composite)28
Specificity differential (R−C)+26.7
Confounder panel (Type-II drivers)
1sepsis / systemic inflammationmag 2
2anemia / acute blood lossmag 0
3hypovolemia / dehydrationn/a
4tachyarrhythmian/a
5hypoxemia / respiratory failuremag 2
6hypertensive emergencymag 1
7high-demand / peri-operative stressmag 1
Coverage: 5/7 confounders with evidence
Tier: deep-scored (abstract-extracted) · 12 supporting references. See the discrimination table for all markers.
Assay & specimen
Class-level default (no specific cleared assay)— generic method inferred from analyte class; confirm against a specific product insert before use.
Specimen
Whole blood — gene is not a circulating analyte; measure protein product or genotype
Collection tube
K2-EDTA whole blood (lavender-top)
Method / principle
SNP genotyping / sequencing; or immunoassay of encoded protein
Reagent / substrate
Allele-specific primers/probes (TaqMan) or NGS panel; or antibody for protein
Platform
qPCR / NGS / array
Turnaround · availability
Send-out · Genotyping widely available; protein assay variable
Human genetic evidence
0.075
Open Targets association (STEMI)
Literature evidence(8)
- Genetic Variation in the Chemokine Network and Atherosclerosis Risk.Current atherosclerosis reports · 2026 · PMID 41824188 · doi
- An atypical atherogenic chemokine that promotes advanced atherosclerosis and hepatic lipogenesis.Nature communications · 2025 · PMID 40055309 · doi
- Platelet ACKR3/CXCR7 favors antiplatelet lipids over an atherothrombotic lipidome and regulates thromboinflammation.Blood · 2022 · PMID 34905596 · doi
- Atypical Roles of the Chemokine Receptor ACKR3/CXCR7 in Platelet Pathophysiology.Cells · 2022 · PMID 35053329 · doi
- Regulation of oxidized platelet lipidome: implications for coronary artery disease.European heart journal · 2017 · PMID 28431006 · doi
- Platelet-derived CXCL12 (SDF-1α): basic mechanisms and clinical implications.Journal of thrombosis and haemostasis : JTH · 2013 · PMID 24024928 · doi
- Endothelial progenitor cells in acute myocardial infarction and sleep-disordered breathing.American journal of respiratory and critical care medicine · 2012 · PMID 23155141 · doi
- Circulating progenitor cells in stable coronary heart disease and acute coronary syndromes: relevant reparatory mechanism?Heart (British Cardiac Society) · 2007 · PMID 17395668 · doi