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MicroRNA 199a-5p Induces Apoptosis by Targeting JunB

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Journal Sci Rep
Specialty Science
Date 2018 Apr 29
PMID 29703907
Citations 23
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Abstract

MicroRNAs participate in a variety of physiological and pathophysiological processes in various organs including the heart. Our previous work revealed that the level of miR-199a-5p was significantly higher in failing hearts than in control hearts. However, whether it is associated with the progression of heart failure (HF) and mediates cardiomyocyte apoptosis remained unclear. In the present study, we used various biochemical and molecular biological approaches to investigate the changes in miR-199a-5p levels in failing hearts in a rat model induced by acute myocardial infarction. We found that miR-199a-5p levels in the heart increased with the progression of HF, and overexpression of miR-199a-5p significantly increased apoptosis in untreated H9C2 cells and potentiated angiotensin II-induced apoptosis. Thus, our results indicate that miR-199a-5p is involved in the progression of HF and mediates cardiomyocyte apoptosis. We also confirmed that JunB, a member of the activator protein-1 transcription factor family, is one of direct targets of miR-199a-5p via a dual-luciferase reporter assay and mutagenesis on the 3' untranslated region of the JunB gene. Consistent with the above findings, overexpression of JunB in H9c2 cells suppressed cell apoptosis. Based on our findings, miR-199a-5p induces apoptosis by targeting JunB.

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References
1.
Meder B, Just S, Vogel B, Rudloff J, Gartner L, Dahme T . JunB-CBFbeta signaling is essential to maintain sarcomeric Z-disc structure and when defective leads to heart failure. J Cell Sci. 2010; 123(Pt 15):2613-20. DOI: 10.1242/jcs.067967. View

2.
Mughal W, Dhingra R, Kirshenbaum L . Striking a balance: autophagy, apoptosis, and necrosis in a normal and failing heart. Curr Hypertens Rep. 2012; 14(6):540-7. DOI: 10.1007/s11906-012-0304-5. View

3.
Li J, He S, Feng Z, Zhao L, Jia W, Liu P . MicroRNA-146b inhibition augments hypoxia-induced cardiomyocyte apoptosis. Mol Med Rep. 2015; 12(5):6903-10. DOI: 10.3892/mmr.2015.4333. View

4.
Zhao H, Qi G, Han Y, Shen X, Yao F, Xuan C . 20-Hydroxyeicosatetraenoic Acid Is a Key Mediator of Angiotensin II-induced Apoptosis in Cardiac Myocytes. J Cardiovasc Pharmacol. 2015; 66(1):86-95. DOI: 10.1097/FJC.0000000000000248. View

5.
Zeng J, Chen L, Chen B, Lu K, Belguise K, Wang X . MicroRNA-199a-5p Regulates the Proliferation of Pulmonary Microvascular Endothelial Cells in Hepatopulmonary Syndrome. Cell Physiol Biochem. 2015; 37(4):1289-300. DOI: 10.1159/000430252. View