Retinol-Binding Protein 4
RBP4proteinRBP4 is an adipokine associated with vascular inflammation and ischemic event risk, linking epicardial adipose-tissue remodeling to atherothrombotic progression.
Pathway placement
Cascade stepPlaque inflammation
Confidencemedium
RationaleAdipokine marker of vascular inflammation and ischemic risk.
Also acts inSystemic / off-pathway
Druggability
DruggableYes
Known drugs / candidates0
Small-molecule tractableYes
Antibody tractableYes
EnsemblENSG00000138207
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I23
C — confounder / Type-II52
A — assay feasibility68
E — evidence strength19
T1DI (composite)5
Specificity differential (R−C)-28.6
Confounder panel (Type-II drivers)
No confounder evidence retrieved.
Tier: light (literature co-occurrence proxy — lower confidence). 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
Serum or plasma
Collection tube
Serum separator (gold/red-top, SST) · K2/K3-EDTA (lavender-top)
Method / principle
Sandwich immunoassay (ELISA) — research-grade unless a cleared assay exists
Reagent / substrate
Matched anti-target antibody pair (capture + labeled detection)
Platform
ELISA microplate or multiplex (Luminex/MSD)
Turnaround · availability
Send-out / research · Research-grade (no universal clinical assay)
Literature evidence(3)
- Restricted T-Cell Repertoire in the Epicardial Adipose Tissue of Non-ST Segment Elevation Myocardial Infarction Patients.Frontiers in immunology · 2022 · PMID 35880176 · doi
- Characterization of differentially expressed plasma proteins in patients with acute myocardial infarction.Journal of proteomics · 2020 · PMID 32736138 · doi
- Retinol-binding protein 4 levels and susceptibility to ischaemic events in men.European journal of clinical investigation · 2014 · PMID 24720534 · doi