Fibroblast Growth Factor 23
FGF23proteinFGF23 acts as a systemic prognostic biomarker for acute coronary syndrome severity and post-MI mortality, reflecting hemodynamic and metabolic stress.
Pathway placement
Cascade stepOff-pathway / systemic markers
Confidencemedium
RationalePrognostic marker in ACS; renal/systemic axis off-pathway.
Also acts inCap degradation / rupture
Druggability
DruggableYes
Known drugs / candidates1
Small-molecule tractableYes
Antibody tractableYes
EnsemblENSG00000118972
Type I vs Type II discrimination
ScoresLow-confidence (proxy)
R — rupture / Type-I43
C — confounder / Type-II86
A — assay feasibility72
E — evidence strength32
T1DI (composite)7
Specificity differential (R−C)-42.4
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(7)
- Fibroblast Growth Factor 23 as a Prognostic Biomarker in Post-Myocardial Infarction Outcomes: Influence of Renal Function and Its Modulation by Klotho.Journal of the American Heart Association · 2026 · PMID 41676927 · doi
- Diagnostic potential of increased Klotho and FGF23 protein concentrations after myocardial infarction in patients with acute coronary syndrome.Cardiology journal · 2025 · PMID 40417994 · doi
- Associations between inflammatory and angiogenic proteomic biomarkers, and cardiovascular events and mortality in relation to kidney function.Clinical kidney journal · 2024 · PMID 38524235 · doi
- Proteomic Correlates of the Urinary Protein/Creatinine Ratio in Heart Failure With Preserved Ejection Fraction.The American journal of cardiology · 2023 · PMID 37734292 · doi
- Inflammation and remodeling pathways and risk of cardiovascular events in patients with ischemic heart failure and reduced ejection fraction.Scientific reports · 2022 · PMID 35595781 · doi
- Novel biomarkers in the prognosis of patients with atherosclerotic coronary artery disease.Revista portuguesa de cardiologia · 2020 · PMID 33239161 · doi
- Cystatin C for Risk Stratification in Patients After an Acute Coronary Syndrome.Journal of the American Heart Association · 2018 · PMID 30371283 · doi