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Liu X, Zhang Y, Yuan W, Han R, Zhong J, Yang X, Zheng M, Xie B. Exosomal CircRNAs in Circulation Serve as Diagnostic Biomarkers for Acute Myocardial Infarction. FRONT BIOSCI-LANDMRK 2024; 29:149. [PMID: 38682191 DOI: 10.31083/j.fbl2904149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/06/2024] [Accepted: 02/21/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND The diagnostic potential of circular RNAs (circRNAs) in circulating exosomes for acute myocardial infarction (AMI) is not well understood, despite existing research indicating their role in cardiovascular diseases. This study aimed to clarify the significance of exosomal circular RNAs as indicators for AMI. METHODS We examined 120 individuals diagnosed with AMI and 83 individuals with non-cardiogenic chest pain (NCCP), all previously enrolled in a conducted study. High-throughput sequencing to identify differentially expressed circRNAs in the circulating exosomes of AMI patients. To validate, we employed Real-Time polymerase chain reaction (RT-PCR) targeting five circRNAs that exhibited notable increase. RESULTS The sequencing identified 893 exosomal circRNAs with altered expression in AMI patients, including 118 up-regulated and 775 down-regulated circRNAs. Genes linked to these circRNAs were enriched in crucial Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, highlighting their direct relevance to AMI pathophysiology. Three exosomal circRNAs (hsa_circ_0001558, hsa_circ_0001535, and hsa_circ_0000972) showed significant up-regulation in AMI patients during the initial validation cohort. The corresponding area under the curve (AUC) values were 0.79, 0.685, and 0.683, respectively. Further validation of hsa_circ_0001558 in a second cohort showed a 4.45-fold increase in AMI patients, with AUC = 0.793. The rise was particularly noticeable in patients with non-ST-elevation myocardial infarction (NSTEMI) (2.80 times, AUC = 0.72) and patients with ST-elevation myocardial infarction (STEMI) (5.27 times, AUC = 0.831) compared to patients with NCCP. CONCLUSIONS Our findings demonstrate significant differences in the expression patterns of circRNAs in plasma exosomes between AMI patients and NCCP patients. Specifically, hsa_circ_0001558 appears as a promising indicator for AMI diagnosis. Further research is necessary to fully evaluate the diagnostic potential of exosomal circRNAs in the context of AMI, emphasizing the importance of these findings.
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Affiliation(s)
- Xiaoyan Liu
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Department of Cardiology, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
| | - Yeping Zhang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Department of Cardiology, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
| | - Wen Yuan
- Medical Research Center, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
| | - Ruijuan Han
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, The Chinese University of Hong Kong, Shenzhen & Longgang District People's Hospital of Shenzhen, 518172 Shenzhen, Guangdong, China
| | - Jiuchang Zhong
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Department of Cardiology, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
| | - Xinchun Yang
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Department of Cardiology, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
| | - Meili Zheng
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Department of Cardiology, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
| | - Boqia Xie
- Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Department of Cardiology, Beijing Chao-Yang Hospital, Capital Medical University, 100020 Beijing, China
- Department of Cardiac Surgery, Beijing Chaoyang Hospital, Capital Medical University, 100020 Beijing, China
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