Open Access

Transforming growth factor β and its role in heart disease (Review)

  • Authors:
    • Guangwang Liu
    • Chao Ma
    • Huilin Yang
    • Pei-Ying Zhang
  • View Affiliations

  • Published online on: March 20, 2017     https://doi.org/10.3892/etm.2017.4246
  • Pages: 2123-2128
  • Copyright: © Liu 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 major form of heart disease that leads to immediate cardiomyocyte death due to ischemia and eventually fibrosis and scar formation and further dysfunction of myocardium and heart failure. Extracellular matrix (ECM) production and tissue repair is conducted by myofibroblasts, which are formed from the normal quiescent cardiac fibroblasts following transformational changes, through the active participation of transforming growth factor β (TGFβ) and its signaling pathways. TGFβ appears to be a ‘Master of all trades’, with respect to cardiac fibrosis, as it can promote cardiomyocyte apoptosis and cardiac hypertrophy. TGFβ signaling involves its binding to TGFβ receptor type II (TGFβRII), which recruits TGFβ receptor type I (TGFβRI), which are also known as activin receptor-like kinase (ALK) in five different isoforms. In canonical signaling pathways, ALK5 activates Smads 2 and 3, and ALK1 activates Smads 1 and 5. These pairs of Smads form a corresponding complex and then bind to Smad 4, to translocate into the nucleus, where transcriptional reprogramming is carried out to promote myofibroblast formation and ECM production, eventually leading to cardiac fibrosis. TGFβ levels are elevated in MI, thereby aggravating the myocardial injury further. Several microRNAs are involved in the regulation of TGFβ signaling at different steps, affecting different components. Therapeutic targeting of TGFβ signaling at ALK1-5 receptor activity level has met with limited success and extensive research is needed to develop therapies based on the components of TGFβ signaling pathway, for instance cardiac dysfunction and heart failure.
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May-2017
Volume 13 Issue 5

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Liu G, Ma C, Yang H and Zhang P: Transforming growth factor β and its role in heart disease (Review). Exp Ther Med 13: 2123-2128, 2017
APA
Liu, G., Ma, C., Yang, H., & Zhang, P. (2017). Transforming growth factor β and its role in heart disease (Review). Experimental and Therapeutic Medicine, 13, 2123-2128. https://doi.org/10.3892/etm.2017.4246
MLA
Liu, G., Ma, C., Yang, H., Zhang, P."Transforming growth factor β and its role in heart disease (Review)". Experimental and Therapeutic Medicine 13.5 (2017): 2123-2128.
Chicago
Liu, G., Ma, C., Yang, H., Zhang, P."Transforming growth factor β and its role in heart disease (Review)". Experimental and Therapeutic Medicine 13, no. 5 (2017): 2123-2128. https://doi.org/10.3892/etm.2017.4246