Does the ADAMTS7 rs3825807 AA genotype increase coronary atherosclerosis susceptibility?

At age 57, rs3825807 may help explain relative coronary-atherosclerosis susceptibility, but it is not a deterministic predictor of disease or an established guide to individual management.

Clinical and genetic evidence

• The claim that ADAMTS7 rs3825807 AA is associated with greater coronary atherosclerosis susceptibility is well supported. Across genetic and angiographic datasets, risk follows an A-allele gradient: AA generally has greater CAD prevalence and plaque burden than GG, with AG intermediate.
• In patients with diabetes and myocardial infarction, AA versus GG was associated with higher CAD odds (OR 2.153, 95% CI 1.215–3.968); AA versus AG/GG combined also increased odds (OR 1.647, 95% CI 1.120–2.407).
• G-allele carriage has been linked to lower obstructive-CAD odds, less LAD disease, and lower angiographic Gensini and Sullivan plaque-burden scores.

Mechanistic evidence

• rs3825807 A encodes the Ser214 form of ADAMTS7; the protective G allele encodes Pro214. Pro214 impairs ADAMTS7 prodomain cleavage, maturation, secretion, and functional protease activity rather than materially reducing vascular expression.
• Relative to GG cells, A/A vascular smooth-muscle cells retain more active ADAMTS7, promoting cleavage of thrombospondin-5/cartilage oligomeric matrix protein (TSP5/COMP). Intact COMP restrains vascular smooth-muscle-cell migration; its cleavage removes this extracellular-matrix brake. Reduced COMP cleavage and migration in GG cells therefore support greater migration with AA.

Remodeling and clinical interpretation

• ADAMTS7 deficiency reduces injury-induced neointimal hyperplasia and aortic/aortic-root lesion formation in mouse models, supporting a role for smooth-muscle migration, matrix processing, and remodeling-related processes.
• However, plaque remodeling has not been directly established as the human mediator of the AA–CAD association; plaque-composition findings vary across models.

Bottom line

• AA is a supported marker of comparatively higher coronary atherosclerosis susceptibility, with a strong mechanistic link to increased smooth-muscle migration; plaque remodeling is a credible but not conclusively demonstrated downstream pathway.