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Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation

  • Authors:
    • Qijun Si
    • Yujie Shi
    • Dandan Huang
    • Na Zhang
  • View Affiliations / Copyright

    Affiliations: Clinical Laboratory, Zhuji People's Hospital, Zhuji, Zhejiang 311800, P.R. China, Cardiovascular Disease Institute, PLA Army General Hospital, Beijing 100000, P.R. China, Preclinical School, North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China, Department of Internal Medicine, The Hospital of Wuhan University, Wuhan, Hubei 430000, P.R. China
    Copyright: © Si et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1335-1341
    |
    Published online on: June 16, 2020
       https://doi.org/10.3892/mmr.2020.11241
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Abstract

Diosmetin has shown great potential in the control of several diseases. The aim of the present study was to evaluate the role of diosmetin as a candidate agent for the treatment of myocardial infarction which was mainly caused by hypoxia. The model of hypoxia‑injured myocardial cells was established using the H9c2 cell line. Cell viability was determined using Cell Counting Kit‑8, cell apoptosis was determined by Annexin V‑FITC Apoptosis Detection Kit and cleaved caspase‑3 level was assessed by western blot analysis. Autophagy was monitored using a commercial kit, and a well‑established reporter system was used to confirm the role of diosmetin in autophagy. The activity of adenosine 5'‑monophosphate‑activated protein kinase (AMPK) signaling was detected by western blot analysis. Cell viability assay indicated that diosmetin alleviated hypoxia‑induced cell death of H9c2 cells in a dose‑dependent manner. Data of the apoptosis assay revealed that diosmetin reduced the proportion of apoptotic cells in the hypoxia‑injured H9c2 cells. It was also found that the occurrence of autophagy was promoted when hypoxia‑injured cells were treated with diosmetin alone, and results of the western blot analysis revealed that AMPK signaling was activated by diosmetin. Administration of diosmetin together with an inhibitor of autophagy (3‑methyladenine, 3‑MA) or AMPK (Compound C) was able to decrease the diosmetin‑induced autophagy as well as the cytoprotective effects in the hypoxia‑injured cells. Our study concluded that diosmetin exhibits a cytoprotective effect on hypoxia‑injured myocardial cells by inducing autophagy and alleviating apoptosis. AMPK was demonstrated to regulate the observed effects caused by diosmetin. This investigation confirmed diosmetin as a promising drug candidate for myocardial infarction treatment. The present findings regarding the inherent molecular mechanisms involved in the protective effects of diosmetin promote the clinical application of diosmetin.
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Copy and paste a formatted citation
Spandidos Publications style
Si Q, Shi Y, Huang D and Zhang N: Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation. Mol Med Rep 22: 1335-1341, 2020.
APA
Si, Q., Shi, Y., Huang, D., & Zhang, N. (2020). Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation. Molecular Medicine Reports, 22, 1335-1341. https://doi.org/10.3892/mmr.2020.11241
MLA
Si, Q., Shi, Y., Huang, D., Zhang, N."Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation". Molecular Medicine Reports 22.2 (2020): 1335-1341.
Chicago
Si, Q., Shi, Y., Huang, D., Zhang, N."Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation". Molecular Medicine Reports 22, no. 2 (2020): 1335-1341. https://doi.org/10.3892/mmr.2020.11241
Copy and paste a formatted citation
x
Spandidos Publications style
Si Q, Shi Y, Huang D and Zhang N: Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation. Mol Med Rep 22: 1335-1341, 2020.
APA
Si, Q., Shi, Y., Huang, D., & Zhang, N. (2020). Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation. Molecular Medicine Reports, 22, 1335-1341. https://doi.org/10.3892/mmr.2020.11241
MLA
Si, Q., Shi, Y., Huang, D., Zhang, N."Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation". Molecular Medicine Reports 22.2 (2020): 1335-1341.
Chicago
Si, Q., Shi, Y., Huang, D., Zhang, N."Diosmetin alleviates hypoxia‑induced myocardial apoptosis by inducing autophagy through AMPK activation". Molecular Medicine Reports 22, no. 2 (2020): 1335-1341. https://doi.org/10.3892/mmr.2020.11241
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