The role of hypoxia-inducible factor 1 in atherosclerosis

Area of Science:

• Cardiovascular Science
• Molecular Biology
• Pathology

Background:

• Atherosclerosis is a leading cause of death, characterized by plaque buildup in arteries.
• Hypoxic conditions and inflammation are hallmarks of atherosclerotic lesions.
• Lipid-loaded macrophages (foam cells) are key cellular components in plaque progression.

Purpose of the Study:

• To review the critical role of hypoxia-inducible factor 1 (HIF-1) in the pathological progression of atherosclerosis.
• To elucidate how HIF-1 influences key cellular processes within atherosclerotic lesions.

Main Methods:

• This review synthesizes existing literature on HIF-1's function in atherosclerosis.
• Key findings from preclinical and clinical studies investigating HIF-1 signaling pathways are discussed.

Main Results:

• HIF-1 is a central regulator of cellular responses to hypoxia in atherosclerotic lesions.
• HIF-1 promotes foam cell formation, endothelial dysfunction, apoptosis, inflammation, and angiogenesis.
• Targeting HIF-1 pathways may offer therapeutic strategies for atherosclerosis.

Conclusions:

• HIF-1 is a significant driver of atherosclerosis pathogenesis.
• Understanding HIF-1's multifaceted role is crucial for developing effective treatments for cardiovascular diseases.