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Published on: December 3, 2021
Molecular mechanisms of myocardial infarction
Brian K Jefferson1, Eric J Topol
1The Cleveland Clinic Foundation, Cleveland, OH 44195, USA.
Insights
Inflammation is key in atherosclerotic heart disease progression to myocardial infarction (MI). New molecular techniques help identify individuals at risk for adverse cardiovascular events linked to plaque rupture.
Area of Science:
- Cardiovascular Medicine
- Immunology
- Genetics
Background:
- Atherosclerotic heart disease is prevalent, yet only a subset of patients develop myocardial infarction (MI).
- Inflammation is increasingly recognized as a critical factor in the pathogenesis of MI.
- "Inflammatory arterial disease" may better describe patients experiencing severe consequences from intracoronary plaque rupture.
Purpose of the Study:
- To elucidate the specific mechanisms underlying the inflammatory processes in atherosclerotic heart disease progression.
- To identify individuals at higher risk for adverse cardiovascular events associated with plaque rupture.
Main Methods:
- Utilized advanced molecular techniques, including high-throughput SNP analysis.
- Employed genome-wide scanning and enriched pedigree analysis.
- Investigated the inflammatory milieu contributing to the transition to MI.
Main Results:
- Elucidated specific molecular mechanisms driving the inflammatory component of atherosclerotic disease.
- Identified key pathways involved in the transition from atherosclerotic plaque to myocardial infarction.
Conclusions:
- Inflammation plays a pivotal role in the development of myocardial infarction in patients with atherosclerotic heart disease.
- Advanced molecular and genetic analyses can identify individuals at risk for adverse cardiovascular events.
- Understanding these inflammatory mechanisms may lead to improved risk stratification and targeted therapies.
Abstract:
Despite an increased knowledge of risk factors for atherosclerotic heart disease, it remains nearly endemic in Western society. Despite the high penetrance, only a fraction of those with the disease progress to develop a frank myocardial infarction (MI). Over the past decade, it has become clear that inflammation plays an important role in the pathogenesis of MI. Inflammatory arterial disease therefore may be a better term for the subset of patients that develop the serious adverse consequences related to the rupture of the intracoronary plaque. Using newer molecular techniques such as high-throughput SNP analysis, genome-wide scanning, and enriched pedigree analysis, many of the specific mechanisms underlying the inflammatory milieu involved in this transition have been elucidated and may help identify those at risk for the adverse events associated with atherosclerotic disease.
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