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Updated: Jun 25, 2026
Isolation of Mouse Coronary Endothelial Cells
Published on: July 3, 2016
Isolation and characterization of human coronary artery-derived endothelial cells in vivo from patients undergoing
Shi-Yong Yu1, Yao-Ming Song, Ai-Min Li
1Department of Cardiology, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China.
Insights
Researchers developed a novel method to isolate human coronary artery endothelial cells (ECs) in vivo using guidewires during percutaneous coronary interventions. This technique yields viable ECs for studying coronary artery disease pathogenesis.
Area of Science:
- Cardiovascular Biology
- Endothelial Cell Research
- Translational Medicine
Background:
- Human coronary artery endothelial cells (ECs) are crucial for studying coronary artery disease (CAD) pathogenesis.
- Limited availability of endothelial tissue presents a significant constraint for research.
- A new method for in vivo isolation of human coronary artery ECs from patients was developed.
Purpose of the Study:
- To establish a reliable method for obtaining human coronary artery ECs in vivo.
- To enable advanced cellular functional analyses for understanding CAD mechanisms.
Main Methods:
- Coronary guidewires were used to collect EC samples from 76 patients.
- Cells were eluted from guidewire tips and purified using immunomagnetic beads.
- Endothelial markers (von Willebrand factor, CD31), cell viability assays, and nitric oxide synthase (eNOS)/nitric oxide (NO) production were assessed.
Main Results:
- Approximately 96 coronary artery ECs were isolated per guidewire.
- Isolated cells exhibited endothelial morphology and immunoreactivity for von Willebrand factor and CD31.
- While cell viability was good, eNOS expression and NO production were decreased.
Conclusions:
- Viable coronary endothelium can be obtained during percutaneous coronary interventions using immunomagnetic beads.
- These isolated ECs are suitable for immunocytochemistry and molecular biology analyses.
- This method facilitates research into the mechanisms underlying coronary artery diseases.
Background/Aims:
Human coronary artery-derived endothelial cells (ECs) seem to be the most appropriate cells for the pathogenesis study of coronary artery disease. But limited availability of endothelial tissue is a major constraint. In this study, we developed a method to isolate human coronary artery ECs in vivo from patients.
Methods:
Coronary guidewires were used to obtain EC samples from coronary arteries in 76 patients. Cells were eluted from wire tips and purified by immunomagnetic beads. Von Willebrand factor and CD31 were used as immunocytochemical markers to identify cells as endothelium. Cell viability was evaluated in terms of cell membrane integrity, energy-dependent uptake of DiI-labeled acetylated low-density lipoprotein, and apoptosis. Nitric oxide synthase (eNOS) expression and nitric oxide (NO) production of cells were detected to evaluate cell function.
Results:
About 96 coronary artery ECs were obtained per guidewire. Cells manifested endothelial morphology and immunoreactivity for von Willebrand factor and CD31 with good viability. But eNOS expression and NO production of cells were decreased.
Conclusions:
Viable coronary endothelium could be obtained during routine percutaneous coronary interventions combined with immunomagnetic beads. These cells may be used for advanced cellular functional analyses such as immunocytochemistry and molecular biology. Such information could aid in understanding mechanisms of coronary artery diseases.
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