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Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation

  • Authors:
    • Hyewon Park
    • Hyelim Park
    • Junbeom Park
  • View Affiliations / Copyright

    Affiliations: Department of Cardiology, College of Medicine, Ewha Womans University School of Medicine, Seoul 07985, Republic of Korea, Department of Otorhinolaryngology‑Head and Neck Surgery, Inha University School of Medicine, Incheon 22332, Republic of Korea
    Copyright: © Park et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 186
    |
    Published online on: March 28, 2022
       https://doi.org/10.3892/mmr.2022.12702
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Abstract

MicroRNAs (miRNAs) are small non‑coding RNAs that control patterns of gene expression by inducing the degradation of mRNAs. In addition, miRNAs are known to serve an important role in the pathogenesis of atrial fibrillation (AF). In general, AF is diagnosed using electrocardiography. However, the present study investigated whether specific miRNAs derived from microarray analysis of human urine could regulate AF through the inhibition of calcium handling protein phosphorylation in an AF model. Microarray analysis of the transcriptome in the human urine of patients with paroxysmal supraventricular tachycardia and AF revealed that 7 differentially expressed miRNAs were significantly downregulated (miR‑3613, 6763, 423, 3162, 1180, 6511, 3197) in patients with AF. In addition, quantitative PCR results demonstrated that collagen I, collagen III, fibronectin and TGF‑β, which are fibrosis‑related genes, were upregulated in patients with AF. Furthermore, fibrosis‑related genes were upregulated in angiotensin II‑induced atrial myocytes, which demonstrated that these genes may be targets of miR‑423. In the AF cell model transfected with miR‑423, the expression of calcium handling proteins, including phosphorylated calmodulin‑dependent protein kinase II, was reduced. The transfection of miR‑423 attenuated damage to cardiac cells caused by calcium handling proteins. The findings highlight the importance of calcium handling protein phosphorylation changes in fibrosis‑induced AF and support miR‑423 detection in human urine as a potential novel approach of AF diagnosis.
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Copy and paste a formatted citation
Spandidos Publications style
Park H, Park H and Park J: Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation. Mol Med Rep 25: 186, 2022.
APA
Park, H., Park, H., & Park, J. (2022). Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation. Molecular Medicine Reports, 25, 186. https://doi.org/10.3892/mmr.2022.12702
MLA
Park, H., Park, H., Park, J."Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation". Molecular Medicine Reports 25.5 (2022): 186.
Chicago
Park, H., Park, H., Park, J."Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation". Molecular Medicine Reports 25, no. 5 (2022): 186. https://doi.org/10.3892/mmr.2022.12702
Copy and paste a formatted citation
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Spandidos Publications style
Park H, Park H and Park J: Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation. Mol Med Rep 25: 186, 2022.
APA
Park, H., Park, H., & Park, J. (2022). Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation. Molecular Medicine Reports, 25, 186. https://doi.org/10.3892/mmr.2022.12702
MLA
Park, H., Park, H., Park, J."Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation". Molecular Medicine Reports 25.5 (2022): 186.
Chicago
Park, H., Park, H., Park, J."Circulating microRNA‑423 attenuates the phosphorylation of calcium handling proteins in atrial fibrillation". Molecular Medicine Reports 25, no. 5 (2022): 186. https://doi.org/10.3892/mmr.2022.12702
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