miR-203

rna

miR-203 is an early circulating biomarker for STEMI onset, marking acute myocardial necrosis ahead of troponin rise.

Pathway placement

Cascade stepMyocardial injury (shared endpoint)

Confidencehigh

RationaleEarly STEMI prediction biomarker; upregulated in acute myocardial necrosis.

Druggability

Not assessed (no mapped human gene target).

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 or cell-free plasma

Collection tube

PAXgene/Tempus RNA tube · K2/K3-EDTA (lavender-top)

Method / principle

RT-qPCR (TaqMan) or small-RNA sequencing

Reagent / substrate

Target-specific primers/probe; reverse transcriptase (miRNA: stem-loop RT primer)

Platform

qPCR instrument / NGS

Turnaround · availability

Research / send-out · Research (few LDTs)