Extracellular Vesicles as Biomarkers for Vascular Disease

Area of Science:

• Cardiovascular Research
• Biomarker Discovery
• Regenerative Medicine

Background:

• Vascular diseases (VD) are a major cause of death, often progressing silently.
• Conventional imaging lacks insight into molecular mechanisms of VD.
• Extracellular vesicles (EVs) are implicated as key players in vascular pathology.

Purpose of the Study:

• To review current evidence on EVs as biomarkers and mediators in vascular conditions.
• To evaluate the therapeutic potential of stem cell-derived EVs in vascular repair.
• To identify challenges in the clinical translation of EV-based diagnostics.

Main Methods:

• Narrative review of existing literature on EVs in vascular diseases.
• Evaluation of biological mechanisms of EVs in conditions like aneurysms, PAD, stenosis, and VTE.
• Exploration of therapeutic applications of EVs, particularly from stem cells.

Main Results:

• EVs' molecular cargo (microRNAs, proteins) reflects vascular inflammation, endothelial dysfunction, and plaque vulnerability.
• EVs offer a "liquid biopsy" approach for diagnosing and monitoring VD.
• Stem cell-derived EVs demonstrate potential in promoting angiogenesis and tissue repair for chronic vascular ulcers.

Conclusions:

• EVs are promising biomarkers and therapeutic agents for vascular diseases.
• Standardized methods for EV isolation and characterization are critical for clinical implementation.
• Further research is essential to overcome hurdles in translating EV technology into clinical practice.