Imaging macrophage development and fate in atherosclerosis and myocardial infarction

Area of Science:

• Cardiovascular Biology
• Immunology
• Molecular Imaging

Background:

• Macrophages are central regulators in atherosclerosis and myocardial infarction (MI).
• They are the dominant leukocyte in atherosclerotic lesions and crucial for inflammation and healing post-MI.
• Understanding macrophage behavior is vital for cardiovascular disease research.

Purpose of the Study:

• To explore the contribution of molecular imaging modalities to understanding macrophages in cardiovascular disease.
• To highlight how imaging reveals macrophage roles in atherosclerosis and MI.
• To discuss imaging of macrophage progenitors in cardiovascular disease.

Main Methods:

• Review of various molecular imaging techniques.
• Inclusion of studies ranging from intravital microscopy in mice to organ-level imaging in patients.
• Focus on imaging of macrophages and their progenitors.

Main Results:

• Molecular imaging provides insights into macrophage dynamics in cardiovascular disease.
• Different modalities offer varying levels of detail from cellular to organ levels.
• Imaging facilitates the study of macrophage involvement in lesion development and cardiac repair.

Conclusions:

• Molecular imaging is a powerful tool for studying macrophages in cardiovascular disease.
• It enhances our comprehension of macrophage roles in atherosclerosis and MI.
• Future research can leverage imaging to develop novel therapeutic strategies targeting macrophages.