Open Access

Recombinant high‑mobility group box 1 induces cardiomyocyte hypertrophy by regulating the 14‑3‑3η, PI3K and nuclear factor of activated T cells signaling pathways

  • Authors:
    • Feifei Su
    • Miaoqian Shi
    • Jian Zhang
    • Yan Li
    • Jianwei Tian
  • View Affiliations

  • Published online on: January 20, 2021     https://doi.org/10.3892/mmr.2021.11853
  • Article Number: 214
  • Copyright: © Su et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

High‑mobility group box 1 (HMGB1) is released by necrotic cells and serves an important role in cardiovascular pathology. However, the effects of HMGB1 in cardiomyocyte hypertrophy remain unclear. Therefore, the aim of the present study was to investigate the potential role of HMGB1 in cardiomyocyte hypertrophy and the underlying mechanisms of its action. Neonatal mouse cardiomyocytes (NMCs) were co‑cultured with recombinant HMGB1 (rHMGB1). Wortmannin was used to inhibit PI3K activity in cardiomyocytes. Subsequently, atrial natriuretic peptide (ANP), 14‑3‑3 and phosphorylated‑Akt (p‑Akt) protein levels were detected using western blot analysis. In addition, nuclear factor of activated T cells 3 (NFAT3) protein levels were measured by western blot analysis and observed in NMCs under a confocal microscope. The results revealed that rHMGB1 increased ANP and p‑Akt, and decreased 14‑3‑3η protein levels. Furthermore, wortmannin abrogated the effects of rHMGB1 on ANP, 14‑3‑3η and p‑Akt protein levels. In addition, rHMGB1 induced nuclear translocation of NFAT3, which was also inhibited by wortmannin pretreatment. The results of this study suggest that rHMGB1 induces cardiac hypertrophy by regulating the 14‑3‑3η/PI3K/Akt/NFAT3 signaling pathway.
View Figures
View References

Related Articles

Journal Cover

March-2021
Volume 23 Issue 3

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

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Su F, Shi M, Zhang J, Li Y and Tian J: Recombinant high‑mobility group box 1 induces cardiomyocyte hypertrophy by regulating the 14‑3‑3η, PI3K and nuclear factor of activated T cells signaling pathways. Mol Med Rep 23: 214, 2021
APA
Su, F., Shi, M., Zhang, J., Li, Y., & Tian, J. (2021). Recombinant high‑mobility group box 1 induces cardiomyocyte hypertrophy by regulating the 14‑3‑3η, PI3K and nuclear factor of activated T cells signaling pathways. Molecular Medicine Reports, 23, 214. https://doi.org/10.3892/mmr.2021.11853
MLA
Su, F., Shi, M., Zhang, J., Li, Y., Tian, J."Recombinant high‑mobility group box 1 induces cardiomyocyte hypertrophy by regulating the 14‑3‑3η, PI3K and nuclear factor of activated T cells signaling pathways". Molecular Medicine Reports 23.3 (2021): 214.
Chicago
Su, F., Shi, M., Zhang, J., Li, Y., Tian, J."Recombinant high‑mobility group box 1 induces cardiomyocyte hypertrophy by regulating the 14‑3‑3η, PI3K and nuclear factor of activated T cells signaling pathways". Molecular Medicine Reports 23, no. 3 (2021): 214. https://doi.org/10.3892/mmr.2021.11853