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Macrophages in the pathogenesis of atherosclerosis

Kathryn J Moore1, Ira Tabas

  • 1Department of Medicine, New York University Medical Center, NY 10016, USA.

Cell
|May 3, 2011
PubMed

Insights

Macrophages are central to atherosclerosis, driving inflammation and lesion development. This review details their critical roles in disease progression, from initial lipid accumulation to thrombotic events.

Area of Science:

  • Cardiovascular Biology
  • Immunology
  • Pathogenesis of Atherosclerosis

Background:

  • Atherosclerosis involves apolipoprotein B-lipoprotein accumulation in blood vessel walls.
  • This accumulation recruits monocytes, which differentiate into macrophages and dendritic cells.
  • Macrophages initiate and perpetuate a chronic inflammatory response in the subendothelial space.

Purpose of the Study:

  • To review the pivotal roles of macrophages in atherosclerosis.
  • To elucidate macrophage involvement across all stages of atherogenesis.
  • To highlight macrophages as key drivers of disease pathogenesis.

Main Methods:

  • Literature review of studies on atherosclerosis and macrophage biology.
  • Synthesis of current understanding of immune cell involvement in lesion development.
  • Analysis of macrophage functions in inflammation, lipid handling, and plaque formation.

Main Results:

  • Macrophages are essential for the inflammatory response in atherosclerosis.
  • They contribute to subendothelial layer expansion through cell, lipid, and matrix accumulation.
  • Macrophage-driven processes can lead to necrotic core formation and thrombotic events.

Conclusions:

  • Macrophages play a central and multifaceted role in the pathogenesis of atherosclerosis.
  • Understanding macrophage functions is critical for developing targeted therapies.
  • Targeting macrophages may offer a strategy to prevent or treat atherosclerotic vascular disease.

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