Open Access

p27kip1 haploinsufficiency preserves myocardial function in the early stages of myocardial infarction via Atg5‑mediated autophagy flux restoration

  • Authors:
    • Ningtian Zhou
    • Qiong Huang
    • Weili Cheng
    • Yingbin Ge
    • Dianfu Li
    • Junhong Wang
  • View Affiliations

  • Published online on: September 2, 2019     https://doi.org/10.3892/mmr.2019.10632
  • Pages: 3840-3848
  • Copyright: © Zhou et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Myocardial infarction (MI) is a leading cause of mortality in adults worldwide. Over the last two decades, gene therapy has been a hot topic in cardiology, and there has been a focus on cell cycle inhibitors and their protective effects on the myocardium post‑MI. In our previous study, the haploinsufficiency of p27kip1 (p27) was demonstrated to improve cardiac function in mice post‑MI by promoting angiogenesis and myocardium protection through the secretion of growth factors. Autophagy is an adaptive response of cells to environmental changes, such as nutrient deprivation, ischemia and hypoxia. The appropriate regulation of autophagy may improve myocardial function by preventing apoptosis of cardiomyocytes. In this study, we used immunoassays, transmission electron microscopy and cardiac ultrasound to confirm that p27 haploinsufficiency prevents myocardial apoptosis by restoring autophagy protein 5‑mediated autophagy flux in the early stages of MI. The present study provides a novel method for studying MI or ischemic heart disease therapy.

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October 2019
Volume 20 Issue 4

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Copy and paste a formatted citation
APA
Zhou, N., Huang, Q., Cheng, W., Ge, Y., Li, D., & Wang, J. (2019). p27kip1 haploinsufficiency preserves myocardial function in the early stages of myocardial infarction via Atg5‑mediated autophagy flux restoration. Molecular Medicine Reports, 20, 3840-3848. https://doi.org/10.3892/mmr.2019.10632
MLA
Zhou, N., Huang, Q., Cheng, W., Ge, Y., Li, D., Wang, J."p27kip1 haploinsufficiency preserves myocardial function in the early stages of myocardial infarction via Atg5‑mediated autophagy flux restoration". Molecular Medicine Reports 20.4 (2019): 3840-3848.
Chicago
Zhou, N., Huang, Q., Cheng, W., Ge, Y., Li, D., Wang, J."p27kip1 haploinsufficiency preserves myocardial function in the early stages of myocardial infarction via Atg5‑mediated autophagy flux restoration". Molecular Medicine Reports 20, no. 4 (2019): 3840-3848. https://doi.org/10.3892/mmr.2019.10632