Angiogenesis in atherosclerosis: gathering evidence beyond speculation

Area of Science:

• Cardiovascular Biology
• Angiogenesis Research
• Atherosclerosis Pathogenesis

Background:

• Neovascularization plays a critical role in the progression of atherosclerotic plaques.
• It supports plaque growth by enhancing perfusion, facilitating the deposition of proatherogenic molecules, and recruiting immune cells.
• Neovascularization also contributes to intraplaque hemorrhage, a key event in plaque instability.

Purpose of the Study:

• To review the multifaceted functions of neovascularization in atherosclerotic plaque development.
• To explore the potential of anti-angiogenesis therapies for treating atherosclerosis, drawing parallels with their use in cancer and macular degeneration.

Main Methods:

• Review of current scientific literature on plaque angiogenesis.
• Analysis of advancements in animal models of atherosclerosis.
• Consideration of molecular regulation of angiogenesis.
• Integration of findings from micro-computed tomography (micro-CT) imaging studies.

Main Results:

• Enhanced understanding of plaque angiogenesis due to improved animal models and molecular insights.
• Genetic modification studies in atherosclerosis-susceptible mice identify key regulatory molecules.
• Micro-CT techniques visualize vasa vasorum anatomy within plaques.

Conclusions:

• Further research into the regulation of plaque angiogenesis is crucial for developing targeted treatments.
• Understanding the cardiovascular profiles of different anti-angiogenesis agents is necessary for effective combination therapies.
• Optimizing treatment strategies requires a focus on selectivity and efficacy within the vascular bed.