Complement component 1q
proteinC1q initiates classical complement activation driving thrombus formation and myocardial injury in acute MI.
Pathway placement
Cascade stepCoagulation & thrombus formation
Confidencehigh
RationaleClassical complement initiator; activates cascade driving thrombus formation and ACS severity.
Also acts inPlatelet activation
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
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)
- Serum complement C1q level is associated with acute coronary syndrome.Molecular immunology · 2020 · PMID 32120180 · doi
- Use of dextran sulfate in tourniquet-induced skeletal muscle reperfusion injury.The Journal of surgical research · 2013 · PMID 24176204 · doi
- Local complement activation triggers neutrophil recruitment to the site of thrombus formation in acute myocardial infarction.Thrombosis and haemostasis · 2009 · PMID 19718478 · doi