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Siwaponanan P, Kaewkumdee P, Phromawan W, et al. Increased expression of six-large extracellular vesicle-derived miRNAs signature for nonvalvular atrial fibrillation. J Transl Med. 2022;20(1):4doi: 10.1186/s12967-021-03213-6.
Siwaponanan, P., Kaewkumdee, P., Phromawan, W., Udompunturak, S., Chomanee, N., Udol, K., Pattanapanyasat, K., & Krittayaphong, R. (2022). Increased expression of six-large extracellular vesicle-derived miRNAs signature for nonvalvular atrial fibrillation. Journal of translational medicine, 20(1), 4. https://doi.org/10.1186/s12967-021-03213-6
Siwaponanan, Panjaree, et al. "Increased expression of six-large extracellular vesicle-derived miRNAs signature for nonvalvular atrial fibrillation." Journal of translational medicine vol. 20,1 (2022): 4. doi: https://doi.org/10.1186/s12967-021-03213-6
Siwaponanan P, Kaewkumdee P, Phromawan W, Udompunturak S, Chomanee N, Udol K, Pattanapanyasat K, Krittayaphong R. Increased expression of six-large extracellular vesicle-derived miRNAs signature for nonvalvular atrial fibrillation. J Transl Med. 2022 Jan 03;20(1):4. doi: 10.1186/s12967-021-03213-6. PMID: 34980172; PMCID: PMC8722074.
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J Transl Med. 2022 Jan 03;20(1):4. doi: 10.1186/s12967-021-03213-6.

Increased expression of six-large extracellular vesicle-derived miRNAs signature for nonvalvular atrial fibrillation.

Journal of translational medicine

Panjaree Siwaponanan, Pontawee Kaewkumdee, Wilasinee Phromawan, Suthipol Udompunturak, Nusara Chomanee, Kamol Udol, Kovit Pattanapanyasat, Rungroj Krittayaphong

Affiliations

  1. Siriraj Center of Research Excellence for Microparticle and Exosome in Diseases, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
  2. Division of Cardiology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
  3. Division of Clinical Epidemiology, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
  4. Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
  5. Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
  6. Division of Cardiology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. [email protected].

PMID: 34980172 PMCID: PMC8722074 DOI: 10.1186/s12967-021-03213-6

Abstract

BACKGROUNDS: Non-valvular atrial fibrillation (AF) is the most common type of cardiac arrhythmia. AF is caused by electrophysiological abnormalities and alteration of atrial tissues, which leads to the generation of abnormal electrical impulses. Extracellular vesicles (EVs) are membrane-bound vesicles released by all cell types. Large EVs (lEVs) are secreted by the outward budding of the plasma membrane during cell activation or cell stress. lEVs are thought to act as vehicles for miRNAs to modulate cardiovascular function, and to be involved in the pathophysiology of cardiovascular diseases (CVDs), including AF. This study identified lEV-miRNAs that were differentially expressed between AF patients and non-AF controls.

METHODS: lEVs were isolated by differential centrifugation and characterized by Nanoparticle Tracking Analysis (NTA), Transmission Electron Microscopy (TEM), flow cytometry and Western blot analysis. For the discovery phase, 12 AF patients and 12 non-AF controls were enrolled to determine lEV-miRNA profile using quantitative reverse transcription polymerase chain reaction array. The candidate miRNAs were confirmed their expression in a validation cohort using droplet digital PCR (30 AF, 30 controls). Bioinformatics analysis was used to predict their target genes and functional pathways.

RESULTS: TEM, NTA and flow cytometry demonstrated that lEVs presented as cup shape vesicles with a size ranging from 100 to 1000 nm. AF patients had significantly higher levels of lEVs at the size of 101-200 nm than non-AF controls. Western blot analysis was used to confirm EV markers and showed the high level of cardiomyocyte expression (Caveolin-3) in lEVs from AF patients. Nineteen miRNAs were significantly higher (> twofold, p < 0.05) in AF patients compared to non-AF controls. Six highly expressed miRNAs (miR-106b-3p, miR-590-5p, miR-339-3p, miR-378-3p, miR-328-3p, and miR-532-3p) were selected to confirm their expression. Logistic regression analysis showed that increases in the levels of these 6 highly expressed miRNAs associated with AF. The possible functional roles of these lEV-miRNAs may involve in arrhythmogenesis, cell apoptosis, cell proliferation, oxygen hemostasis, and structural remodeling in AF.

CONCLUSION: Increased expression of six lEV-miRNAs reflects the pathophysiology of AF that may provide fundamental knowledge to develop the novel biomarkers for diagnosis or monitoring the patients with the high risk of AF.

© 2021. The Author(s).

Keywords: Atrial fibrillation; Biomarkers; Large extracellular vesicles; Patients; miRNA

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