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Article Open Access

miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo

  • Authors:
    • Liqiu Yan
    • Nan Guo
    • Yanchao Cao
    • Saitian Zeng
    • Jiawang Wang
    • Fengfeng Lv
    • Yunfei Wang
    • Xufen Cao
  • View Affiliations / Copyright

    Affiliations: Department of Cardiology, Cangzhou Central Hospital, Hebei Medical University, Cangzhou, Hebei 061000, P.R. China
    Copyright: © Yan et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1537-1547
    |
    Published online on: June 28, 2018
       https://doi.org/10.3892/ijmm.2018.3748
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Abstract

The present study investigated the effects of micro (mi)RNA‑145 on acute myocardial infarction (AMI) and the potential underlying mechanism. A total of 6 AMI and 6 normal rat tissues were investigated for the present study. It was demonstrated that miRNA‑145 expression was downregulated in the AMI rat model, compared with the control group. Downregulation of miRNA‑145 increased cardiac cell apoptosis, suppressed phosphorylated (p)‑RAC‑γ serine/threonine‑protein kinase (Akt3) and p‑mechanistic target of rapamycin (mTOR) protein expression levels and suppressed autophagy in an in vitro model of AMI. However, overexpression of miRNA‑145 decreased cardiac cell apoptosis, induced p‑Akt3 and p‑mTOR protein expression and promoted autophagy in the in vitro model of AMI. The inhibition of Akt3 (GSK2110183, 1 nM) decreased the effect of the miRNA‑145 upregulation on cell apoptosis in the in vitro model of AMI. Chloroquine diphosphate (5 µM) inhibited the regulatory effect of miRNA‑145 upregulation on autophagy to adjust cell apoptosis, in the in vitro model of AMI. The results of the present study demonstrate that miRNA‑145 inhibits myocardial infarction‑induced apoptosis via autophagy associated with the Akt3/mTOR signaling pathway in vivo and in vitro.
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Copy and paste a formatted citation
Spandidos Publications style
Yan L, Guo N, Cao Y, Zeng S, Wang J, Lv F, Wang Y and Cao X: miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo. Int J Mol Med 42: 1537-1547, 2018.
APA
Yan, L., Guo, N., Cao, Y., Zeng, S., Wang, J., Lv, F. ... Cao, X. (2018). miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo. International Journal of Molecular Medicine, 42, 1537-1547. https://doi.org/10.3892/ijmm.2018.3748
MLA
Yan, L., Guo, N., Cao, Y., Zeng, S., Wang, J., Lv, F., Wang, Y., Cao, X."miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo". International Journal of Molecular Medicine 42.3 (2018): 1537-1547.
Chicago
Yan, L., Guo, N., Cao, Y., Zeng, S., Wang, J., Lv, F., Wang, Y., Cao, X."miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo". International Journal of Molecular Medicine 42, no. 3 (2018): 1537-1547. https://doi.org/10.3892/ijmm.2018.3748
Copy and paste a formatted citation
x
Spandidos Publications style
Yan L, Guo N, Cao Y, Zeng S, Wang J, Lv F, Wang Y and Cao X: miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo. Int J Mol Med 42: 1537-1547, 2018.
APA
Yan, L., Guo, N., Cao, Y., Zeng, S., Wang, J., Lv, F. ... Cao, X. (2018). miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo. International Journal of Molecular Medicine, 42, 1537-1547. https://doi.org/10.3892/ijmm.2018.3748
MLA
Yan, L., Guo, N., Cao, Y., Zeng, S., Wang, J., Lv, F., Wang, Y., Cao, X."miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo". International Journal of Molecular Medicine 42.3 (2018): 1537-1547.
Chicago
Yan, L., Guo, N., Cao, Y., Zeng, S., Wang, J., Lv, F., Wang, Y., Cao, X."miRNA‑145 inhibits myocardial infarction‑induced apoptosis through autophagy via Akt3/mTOR signaling pathway in vitro and in vivo". International Journal of Molecular Medicine 42, no. 3 (2018): 1537-1547. https://doi.org/10.3892/ijmm.2018.3748
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