Immunoglobulin M
proteinIgM autoantibodies targeting oxidized lipoproteins suppress lipid retention and promote clearance of modified LDL, reducing plaque burden.
Pathway placement
Cascade stepLipid retention & oxidation
Confidencehigh
RationaleClears oxidized LDL; atheroprotective via modified-lipoprotein targeting.
Also acts inVascular inflammation
Druggability
Not assessed (no mapped human gene target).
Type I vs non-Type I discrimination
ScoresIndeterminate
R — rupture / Type-I—
C — non-Type-I48
A — assay feasibility68
E — evidence strength28
T1DI (composite)6
Specificity differential (R−C)-32.6
Non-Type-I axis panel
Does this marker also move in each non-Type-I setting? mag 0–3; higher means less Type-I-specific. n/a = no evidence retrieved, which is not the same as no change.
2sepsis / systemic inflammationmag 2
2anemia / acute blood lossn/a
2hypovolemia / dehydrationmag 2
2tachyarrhythmiamag 1
2hypoxemia / respiratory failuremag 2
2hypertensive emergencymag 1
2high-demand / peri-operative stressmag 1
3sudden cardiac deathn/a
4aPCI-related periproceduraln/a
4bstent thrombosisn/a
4cin-stent restenosisn/a
5CABG-relatedmag 1
Coverage: 7/12 axes with evidence
Tier: deep-scored (abstract-extracted) · 8 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
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(4)
- Oxidation-specific epitopes are major targets of innate immunity in atherothrombosis.Hamostaseologie · 2015 · PMID 25682990 · doi
- Protective role of natural IgM-producing B1a cells in atherosclerosis.Trends in cardiovascular medicine · 2012 · PMID 22841841 · doi
- Atherogenesis and the humoral immune response to modified lipoproteins.Atherosclerosis · 2008 · PMID 18513726 · doi
- Oxidized LDL antibodies in treatment and risk assessment of atherosclerosis and associated cardiovascular disease.Current pharmaceutical design · 2007 · PMID 17430165 · doi