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Updated: May 14, 2026
05:51
A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology
Published on: May 6, 2014
Inflammation and atherosclerosis: direct versus indirect mechanisms
1Department of Pathology, University of Washington, USA. ssmjm@u.washington.edu
Current Opinion in Pharmacology
|January 30, 2013
Summary
Atherosclerotic lesion development involves chronic inflammation from innate and adaptive immunity. Triggers for this vascular inflammation, whether direct (e.g., lipid deposition) or indirect (e.g., systemic diseases), remain under investigation.
Area of Science:
- Cardiovascular Biology
- Immunology
- Pathophysiology
Background:
- Atherosclerosis involves chronic inflammation with innate and adaptive immune responses.
- The precise triggers of this vascular inflammation are not fully understood.
Purpose of the Study:
- To elucidate the direct and indirect mechanisms inducing inflammatory responses in atherosclerosis.
- To differentiate between intra-vascular and systemic inflammatory contributions to plaque development.
Main Methods:
- Review and synthesis of existing literature on inflammatory mechanisms in atherosclerosis.
- Categorization of inflammatory triggers into direct (intravascular) and indirect (non-vascular) pathways.
Main Results:
- Direct mechanisms include lipid modification, lipoprotein influx, and potential infections within the vessel intima.
- Indirect mechanisms involve systemic inflammation from autoimmune diseases, smoking, infections, and pollution.
- Both pathways contribute to plaque initiation and progression through cytokine release, cell recruitment, and autoantibody formation.
Conclusions:
- Understanding the diverse inflammatory triggers is crucial for targeting atherosclerosis.
- Both local vascular and systemic inflammatory processes play significant roles in atherosclerotic lesion development.
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