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Association between Exosomal miRNAs and Coronary Artery Disease by Next-Generation Sequencing
Sheng-Nan Chang1, Jien-Jiun Chen1, Jo-Hsuan Wu2
1Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Douliu City 640203, Taiwan.
Cells
|January 11, 2022
Summary
Exosomal microRNAs (miRNAs) show altered expression in coronary artery disease (CAD). These stable molecules are promising biomarkers for diagnosing CAD, offering new diagnostic avenues.
Area of Science:
- Biochemistry
- Molecular Biology
- Cardiology
Background:
- Exosomes facilitate intercellular communication via bio-informative molecules like microRNAs (miRNAs).
- Exosomal miRNAs are stable, even after freeze-thaw, making them potential biomarkers.
- Coronary artery disease (CAD) diagnosis can benefit from novel biomarker discovery.
Purpose of the Study:
- To investigate the relationship between exosomal miRNAs and coronary artery disease (CAD).
- To identify specific exosomal miRNAs that are differentially expressed in CAD patients.
- To evaluate the potential of exosomal miRNAs as biomarkers for CAD.
Main Methods:
- Blood samples were collected from patients with and without three-vessel CAD.
- Exosome precipitation and extraction were performed.
- Next-generation sequencing was used to analyze exosomal miRNA expression profiles.
Main Results:
- Exosome amounts decreased with increased age and severity of CAD.
- Eight exosomal miRNAs exhibited altered expression in CAD patients.
- Specific up-regulated (miRNA-382-3p, miRNA-432-5p, miRNA-200a-3p, miRNA-3613-3p) and down-regulated (miRNA-125a-5p, miRNA-185-5p, miRNA-151a-3p, miRNA-328-3p) miRNAs were identified.
Conclusions:
- Particular exosomal miRNAs demonstrate altered expression patterns in CAD.
- These identified exosomal miRNAs hold promise as future biomarkers for CAD diagnosis.
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