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Updated: Jul 13, 2026

A Human Ex Vivo Atherosclerotic Plaque Model to Study Lesion Biology
Published on: May 6, 2014
Plaque progression and regression in atherothrombosis
B Ibanez1, G Vilahur, J J Badimon
1The Zena and Michael A. Wiener Cardiovascular Institute, Mount Sinai School of Medicine, New York, NY 10029, USA.
Insights
Atherosclerosis plaque progression can be slowed, stopped, or reversed. Understanding plaque homeostasis mechanisms can lead to new therapies and improved imaging for assessing interventions.
Area of Science:
- Cardiovascular Science
- Pathology
- Medical Imaging
Background:
- Atherosclerotic disease involves lipid deposition in arterial walls, narrowing the lumen and leading to thrombotic complications.
- Traditionally viewed as progressive, atherosclerotic plaque development is now understood to involve homeostasis, with potential for regression.
- Understanding plaque progression and regression is crucial for developing effective treatments.
Purpose of the Study:
- To review the mechanisms of atherosclerotic lesion formation, progression, and disruption.
- To explore potential pathways for atherosclerotic plaque regression.
- To discuss novel imaging technologies for evaluating plaque progression and therapeutic efficacy.
Main Methods:
- Literature review of current research on atherosclerosis.
- Analysis of data on plaque homeostasis and regression mechanisms.
- Discussion of advancements in medical imaging for atherosclerosis assessment.
Main Results:
- Atherosclerotic plaque formation is not always progressive and can be influenced towards regression.
- Triggers for plaque disruption and subsequent clinical events are multifactorial.
- Novel imaging techniques enable accurate quantification of plaque progression, aiding intervention assessment.
Conclusions:
- Interventions targeting atherosclerotic plaque regression pathways are a promising therapeutic strategy.
- Accurate serial quantification of atherosclerotic lesions is vital for evaluating treatment effectiveness.
- Further research into plaque homeostasis mechanisms can unlock new therapeutic avenues.
Abstract:
Atherosclerotic disease is a pathological process characterized by the deposition of lipid and other blood-borne material within the arterial wall. The deposition of these materials and the subsequent thickening of the wall may significantly compromise the vessel lumen. Atherosclerosis is a diffuse disease with focal clinical manifestations that are the consequence of thrombotic complications on disrupted atherosclerotic lesions. Until recently, atherosclerosis development was envisaged as an incessant progressing process; however, new evidence has shown that atherosclerotic plaque homeostasis is not necessarily a constantly progressing process. There are many data showing that atherosclerotic plaque formation can be slowed, stopped or even reversed. Comprehension of the underlying mechanisms involved in the homeostasis of atherosclerotic plaque (progression/regression) should allow the development of interventions enhancing the regression pathway. Novel imaging technology has allowed the accurate evaluation of plaque progression, vital in the assessment of the efficacy of interventions. In this review we discuss the processes involved in the formation and progression of atherosclerotic lesions, the triggers for plaque disruption, as well as new therapies. We also deal with the potential pathways of plaque regression, as well as tools for accurate serial atherosclerotic quantification.
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