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Updated: Jun 5, 2026

Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus
Published on: December 7, 2013
[Macrophage: pathogenesis in the progression of atherosclerosis]
Toshihiro Tsuruda1, Kinta Hatakeyama, Kazuo Kitamura
1Department of Internal Medicine, Circulatory and Body Fluid Regulation.
Abstract:
Atherosclerotic changes in aorta or coronary arteries involve the accumulation and activation of macrophages, which this type of cell is present not only in plaques of intima but in the outer-media and adventitia. Macrophages play important roles in the progression of atherosclerosis by exhibiting unique characteristics under the various stimuli, evolving the plaque instability, thrombus formation and remodeling. Recent studies have shown the molecules-associated with metabolism, such as sirtuin-1 and peroxisome proliferator -activated receptor gamma in macrophages, appear to be involved to modulate the atherosclerotic process. In addition, macrophages work coordinately with other immune cells like mast cells. Thus, modulation of activation and function in macrophages might be a potential therapeutic target in attenuating the atherosclerosis-based cardiovascular diseases.
Insights
Macrophages are key players in atherosclerosis, influencing plaque instability and cardiovascular disease progression. Targeting macrophage metabolism and function offers a promising therapeutic strategy for treating atherosclerosis.
Area of Science:
- Immunology
- Metabolic pathways
- Cardiovascular research
Context:
- Atherosclerosis involves macrophage accumulation and activation within arterial walls, specifically in the intima, media, and adventitia.
- Macrophages exhibit dynamic characteristics influencing plaque instability, thrombus formation, and arterial remodeling.
- Immune cell interactions, particularly between macrophages and mast cells, are crucial in atherosclerotic processes.
Purpose:
- To explore the multifaceted roles of macrophages in the pathogenesis of atherosclerosis.
- To investigate the involvement of metabolic molecules like sirtuin-1 and peroxisome proliferator-activated receptor gamma in macrophage-mediated atherosclerosis.
- To highlight the potential of targeting macrophage activation and function as a therapeutic strategy for cardiovascular diseases.
Summary:
- Macrophages are central to atherosclerotic development, residing in various arterial layers and driving plaque progression.
- Metabolic regulators (sirtuin-1, PPARγ) within macrophages influence atherosclerotic processes.
- Coordinated immune cell activity, including mast cells, alongside macrophages, contributes to disease evolution.
Impact:
- Understanding macrophage behavior in atherosclerosis can lead to novel therapeutic interventions.
- Targeting macrophage metabolism and function presents a potential strategy to attenuate atherosclerosis-related cardiovascular diseases.
- This research underscores the significance of immunometabolism in cardiovascular health and disease.
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