Related Experiment Video
Updated: Sep 20, 2026

Isolation, Characterization, and Proteomic Analysis of Plasma-Derived Extracellular Vesicles for Cardiovascular Biomarker Discovery
Published on: January 31, 2025
Plasma vitronectin levels in patients with coronary atherosclerosis are increased and correlate with extent of
Hakan Ekmekci1, Huseyin Sonmez, Ozlem B Ekmekci
1Department of Biochemistry, Istanbul University, Cerrahpasa Medical Faculty, Istanbul, Turkey. hakekmekci@yahoo.com
Insights
Plasma vitronectin levels are significantly elevated in patients with coronary artery disease (CAD). Higher vitronectin may indicate its role in CAD development or progression.
Area of Science:
- Biochemistry
- Cardiovascular Medicine
- Hematology
Background:
- Atherosclerosis involves plaque disruption and acute thrombosis, leading to ischemic syndromes.
- Vitronectin (VN) is a glycoprotein involved in blood and extracellular matrix functions, including interactions with collagen, plasminogen, and platelet glycoproteins.
- VN stabilizes plasminogen activation inhibitor-1 (PAI-1), a key fibrinolysis regulator, and may influence thrombus clearance and platelet aggregation at vascular injury sites.
Purpose of the Study:
- To investigate plasma vitronectin levels in patients diagnosed with Coronary Artery Disease (CAD).
- To compare plasma vitronectin levels between CAD patients and a control group.
- To explore potential correlations between vitronectin levels and the severity of CAD.
Main Methods:
- Plasma vitronectin levels were determined using ELISA (Technoclone).
- Patients with CAD were categorized into subgroups based on angiography results: no, single, double, and triple vessel disease.
- Plasma vitronectin levels were measured and compared across these subgroups and with the control group.
Main Results:
- Plasma vitronectin levels were significantly higher in patients with CAD (125.87 +/- 58.38) compared to the control group (89.47 +/- 25.3).
- Patients with double (146.03 +/- 71.69) and triple vessel disease (160.81 +/- 57.02) showed significantly higher plasma vitronectin levels than those with no or single vessel disease and the control group.
- No correlation was observed between vitronectin levels and lipid parameters.
Conclusions:
- Elevated plasma vitronectin levels are associated with Coronary Artery Disease (CAD).
- Vitronectin may serve as a potential biomarker for CAD.
- Increased vitronectin levels could reflect a role in CAD pathogenesis, progression, or act as a compensatory mechanism.
Background:
Acute thrombosis after atherosclerotic plaques disruption is a major complication of primary atherosclerosis, leading to acute ischemic syndromes and atherosclerotic progression. Vitronectin (VN) is multifunctional glycoprotein in blood and in the extracellular matrix. It binds glycosaminoglycans, collagen, plasminogen and urokinase receptor. VN stabilizes the inhibitory confirmation of plasminogen activation inhibitor-1 (PAI-1). Vitronectin may control the clearance of vascular thrombi by binding and stabilizing PAI-1, a key regulator of fibrinolysis. Therefore, VN is generally regarded as a cofactor for PAI-1 activity. On the other hand vitronectin binds to platelet glycoproteins may mediate platelet adhesion and aggregation at sites of vascular injury. Previous studies showed that anti-VN antibodies inhibit platelet aggregation in vitro, suggesting that vitronectin contributes to platelet accumulation at sites of vascular injury. In this study; we investigated the levels of plasma vitronectin in patients with Coronary Artery Disease (CAD) and control group.
Methods:
The patient group was divided into four subgroups: patients with no, single, double and triple vessel disease according to their angiography results. ELISA procedure (Technoclone) was used to determine the plasma vitronectin levels.
Results:
Plasma vitronectin levels in patient with CAD (% 125.87 +/- 58.38) were found to be significantly higher than control group (% 89.47 +/- 25.3) (p:0.000). In addition, in patients with double vessel disease (% 146.03 +/- 71.69) plasma vitronectin levels were significantly higher than no vessel disease (% 87.84 +/- 22.30) and control group, triple vessel disease (% 160.81 +/- 57.02) significantly higher as compare with no, single vessel disease (% 111.68 +/- 45.34) and control group (p < 0.05). There was no correlation between vitronectin and lipid parameters.
Conclusion:
These findings suggested that vitronectin is a marker of CAD. Elevated levels may indicate its role in the genesis and/or progression of CAD or may be the results of a compensatory mechanism.
Related Concept Videos
Coronary Artery Disease III: Clinical Manifestations
Coronary Artery Disease II: Pathophysiology
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Acute Coronary Syndrome III: Diagnostic Studies
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Coronary Artery Disease V: Interprofessional Care
