Sodium tanshinone IIA sulfonate attenuates the transforming growth factor-β1-induced differentiation of atrial fibroblasts into myofibroblasts in vitro

  • Authors:
    • Le Yang
    • Jin Hu
    • Hong-Zhen Hao
    • Zhao Yin
    • Gang Liu
    • Xiao-Jing Zou
  • View Affiliations

  • Published online on: February 2, 2015     https://doi.org/10.3892/ijmm.2015.2087
  • Pages: 1026-1032
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Abstract

The differentiation of atrial fibroblasts into myofibroblasts is a critical event in atrial fibrosis. One of the most important factors in atrial fibroblast differentiation is transforming growth factor-β1 (TGF-β1). Accumulating evidence indicates that sodium tanshinone IIA sulfonate (STS) possesses antifibrotic properties. In this study, we therefore investigated whether STS attenuates the TGF-β1‑induced differentiation of atrial fibroblasts. TGF-β1 enhanced collagen production, collagen synthesis and the expression of collagen type I and III, as shown by hydroxyproline assay, collagen synthesis assay and western blot analysis, respectively. In addition, as shown by immunohistochemistry and western blot analysis, TGF-β1 enhanced the expression of α-smooth muscle actin (α-SMA), which is the hallmark of myofibroblast differentiation. These responses were attenuated by treatment with STS. In addition, STS suppressed the TGF-β1‑induced expression of phosphorylated (p)Smad/pSmad3 expression and nuclear translocation. Furthermore, STS supressed extracellular signal-regulated kinase (ERK) phosphorylation. In conclusion, the current study demonstrates that STS exerts antifibrotic effects by modulating atrial fibroblast differentiation through ERK phosphorylation and the Smad pathway.
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April-2015
Volume 35 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Yang L, Hu J, Hao H, Yin Z, Liu G and Zou X: Sodium tanshinone IIA sulfonate attenuates the transforming growth factor-β1-induced differentiation of atrial fibroblasts into myofibroblasts in vitro. Int J Mol Med 35: 1026-1032, 2015.
APA
Yang, L., Hu, J., Hao, H., Yin, Z., Liu, G., & Zou, X. (2015). Sodium tanshinone IIA sulfonate attenuates the transforming growth factor-β1-induced differentiation of atrial fibroblasts into myofibroblasts in vitro. International Journal of Molecular Medicine, 35, 1026-1032. https://doi.org/10.3892/ijmm.2015.2087
MLA
Yang, L., Hu, J., Hao, H., Yin, Z., Liu, G., Zou, X."Sodium tanshinone IIA sulfonate attenuates the transforming growth factor-β1-induced differentiation of atrial fibroblasts into myofibroblasts in vitro". International Journal of Molecular Medicine 35.4 (2015): 1026-1032.
Chicago
Yang, L., Hu, J., Hao, H., Yin, Z., Liu, G., Zou, X."Sodium tanshinone IIA sulfonate attenuates the transforming growth factor-β1-induced differentiation of atrial fibroblasts into myofibroblasts in vitro". International Journal of Molecular Medicine 35, no. 4 (2015): 1026-1032. https://doi.org/10.3892/ijmm.2015.2087