Inflammation in atherosclerosis

Area of Science:

• Immunology
• Cardiovascular Medicine
• Inflammation Biology

Background:

• Atherosclerosis is an arterial wall inflammatory disease causing major vascular events like heart attack and stroke.
• Both innate and adaptive immunity, involving monocytes/macrophages and T cells, are critical in atherosclerosis development.
• Specific T cell subsets, like T-helper 1 (Th1), have proatherogenic effects, while others like regulatory T cells offer protection.

Purpose of the Study:

• To review the roles of innate and adaptive immune cells in atherosclerosis.
• To discuss the potential of anti-inflammatory drugs as a therapeutic strategy for cardiovascular diseases.

Main Methods:

• Literature review of animal models and human studies on immune cell involvement in atherosclerosis.
• Analysis of T cell subsets (Th1, Th2, Th17, regulatory T cells) and their specific roles.
• Evaluation of anti-inflammatory treatments in the context of cardiovascular disease.

Main Results:

• Monocytes/macrophages and Th1 responses are proatherogenic.
• Regulatory T cells and certain Th2 cytokines, such as interleukin-5, demonstrate antiatherosclerotic effects.
• Animal models highlight the significance of inflammatory cells in atherosclerosis complications.

Conclusions:

• Immune cell activity is central to atherosclerosis pathogenesis and complications.
• Anti-inflammatory drug therapy is a potential strategy for cardiovascular diseases.
• Randomized placebo-controlled trials are essential to validate the efficacy of anti-inflammatory drugs in cardiovascular therapeutics.