Extracellular vesicles in cardiovascular calcification: expanding current paradigms

Area of Science:

• Cardiovascular Biology
• Cell Biology
• Biomineralization

Background:

• Vascular calcification significantly contributes to cardiovascular disease progression and mortality.
• Extracellular vesicles (EVs) from smooth muscle cells, valvular interstitial cells, and macrophages are implicated as mediators of vascular calcification.
• The precise regulation of EV release and their interaction with the extracellular matrix in vascular calcification remain incompletely understood.

Purpose of the Study:

• To review current knowledge gaps regarding the role of EVs in cardiovascular disease.
• To explore novel perspectives on calcific EV biogenesis, release, and function.
• To identify potential therapeutic targets for vascular mineralization and atherosclerotic plaque stabilization.

Main Methods:

• Literature review focusing on extracellular vesicles in vascular calcification.
• Analysis of current evidence on EV biogenesis, cargo loading, and release mechanisms.
• Synthesis of findings to propose new roles for EVs in intercellular communication and vascular mineralization.

Main Results:

• A significant population of EVs involved in cardiovascular calcification may be of exosomal origin.
• EVs can be loaded with microRNAs and calcification inhibitors (fetuin-A, matrix Gla protein), suggesting a role in intercellular communication.
• Cell type-specific annexin enrichment in EVs influences their release and calcifying potential.

Conclusions:

• Extracellular vesicles are essential mediators of vascular calcification, a major determinant of cardiovascular mortality.
• EVs, particularly exosomes, represent a novel mechanism in the pathogenesis of vascular mineralization.
• Targeting EV-mediated processes offers potential therapeutic strategies for cardiovascular disease.