The roles of myeloperoxidase in coronary artery disease and its potential implication in plaque rupture

Area of Science:

• Cardiovascular Research
• Biochemistry
• Inflammation Biology

Background:

• Atherosclerosis is the primary cause of coronary artery disease (CAD).
• Vulnerable atherosclerotic plaques, prone to rupture, are characterized by inflammation and thin fibrous caps.
• Myeloperoxidase (MPO) is mechanistically linked to inflammation and atherosclerosis development.

Purpose of the Study:

• To review the role of MPO in CAD.
• To highlight MPO's contribution to vulnerable plaque formation and rupture.
• To discuss recent advancements in MPO detection and imaging for risk stratification.

Main Methods:

• Literature review of studies investigating MPO's role in atherosclerosis.
• Analysis of evidence linking MPO to plaque vulnerability markers.
• Summary of techniques for quantifying and imaging MPO in clinical settings.

Main Results:

• MPO contributes to foam cell formation, endothelial dysfunction, and matrix metalloproteinase activation.
• MPO promotes tissue factor expression, a key factor in plaque vulnerability.
• MPO detection and imaging are valuable tools for cardiac risk stratification and identifying rupture-prone plaques.

Conclusions:

• MPO is a critical mediator in the pathogenesis of atherosclerosis and plaque rupture.
• Quantification and imaging of MPO offer promising strategies for improving cardiac risk assessment in CAD patients.
• Targeting MPO may represent a future therapeutic approach for managing CAD complications.