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Article

miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells

  • Authors:
    • Peng Liu
    • Jianfang Su
    • Xixi Song
    • Shixiao Wang
  • View Affiliations / Copyright

    Affiliations: Department of Cardiology, Shanghai East Hospital, Tongji University, Shanghai 200120, P.R. China, College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China, Department of Orthopaedics, Shaanxi Provincial People's Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China, Department of Internal Medicine, Shanghai Dermatology Hospital, Tongji University, Shanghai 200443, P.R. China
  • Pages: 1041-1048
    |
    Published online on: November 2, 2017
       https://doi.org/10.3892/mmr.2017.7937
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Abstract

Vascular smooth muscle cells (VSMCs) exhibit a notably increased rate of migration, which is one of the most common pathological changes in atherosclerosis. Investigations into the role of micro (mi)RNAs in the regulation of VSMC migration are beginning to emerge and additional miRNAs involved in VSMC migration modulation require identification. In the current study, VSMCs were primarily cultured from rat thoracic aortas, transfected with miR‑92a mimics and induced by hydrogen peroxide (H2O2) for 24 h. Total mRNA and protein were collected for quantitative polymerase chain reaction and western blot analysis. In addition, the sirtuin 1 (SIRT1) gene was detected by luciferase reporter assay and VSMC migration was detected by Transwell migration assay. The current results demonstrated that reduced expression of miR‑92a and overexpression of SIRT1 at the mRNA level were observed in H2O2‑induced VSMCs. Furthermore, luciferase reporter assay demonstrated that the activity of the SIRT1 3'‑untranslated region was reduced by miR‑92a mimics. The upregulation of MMP9 and the downregulation of TIMP3 in H2O2‑induced VSMCs were observed to be reversed by miR‑92a mimics in addition to SIRT1 siRNA. Finally, Transwell migration assay revealed that miR‑92a overexpression and silencing SIRT1 mitigated VSMC migration following H2O2 treatment. The present study indicated that miR‑92a prevented the migration of H2O2‑induced VSMCs by repressing the expression of SIRT1, and also provided a novel therapy to protect against the phenotypic change of VSMCs in atherosclerosis.
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Copy and paste a formatted citation
Spandidos Publications style
Liu P, Su J, Song X and Wang S: miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells. Mol Med Rep 17: 1041-1048, 2018.
APA
Liu, P., Su, J., Song, X., & Wang, S. (2018). miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells. Molecular Medicine Reports, 17, 1041-1048. https://doi.org/10.3892/mmr.2017.7937
MLA
Liu, P., Su, J., Song, X., Wang, S."miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells". Molecular Medicine Reports 17.1 (2018): 1041-1048.
Chicago
Liu, P., Su, J., Song, X., Wang, S."miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells". Molecular Medicine Reports 17, no. 1 (2018): 1041-1048. https://doi.org/10.3892/mmr.2017.7937
Copy and paste a formatted citation
x
Spandidos Publications style
Liu P, Su J, Song X and Wang S: miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells. Mol Med Rep 17: 1041-1048, 2018.
APA
Liu, P., Su, J., Song, X., & Wang, S. (2018). miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells. Molecular Medicine Reports, 17, 1041-1048. https://doi.org/10.3892/mmr.2017.7937
MLA
Liu, P., Su, J., Song, X., Wang, S."miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells". Molecular Medicine Reports 17.1 (2018): 1041-1048.
Chicago
Liu, P., Su, J., Song, X., Wang, S."miR-92a regulates the expression levels of matrix metalloproteinase 9 and tissue inhibitor of metalloproteinase 3 via sirtuin 1 signaling in hydrogen peroxide-induced vascular smooth muscle cells". Molecular Medicine Reports 17, no. 1 (2018): 1041-1048. https://doi.org/10.3892/mmr.2017.7937
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