4.6 Review

New Insights into Hippo/YAP Signaling in Fibrotic Diseases

Journal

CELLS
Volume 11, Issue 13, Pages -

Publisher

MDPI
DOI: 10.3390/cells11132065

Keywords

tissue fibrosis; fibroblast; myofibroblast; adverse remodeling; Hippo signaling; YAP; TAZ

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Funding

  1. Duke-NUS Medical School Singapore
  2. Goh foundation
  3. NMRC grant [MOH-000025]

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Fibrosis is a defective wound healing process often seen after chronic injury and/or inflammation in various organs. The Hippo signaling pathway plays a crucial role in the pathophysiology of fibrotic diseases, regulating cell proliferation, apoptosis, cell fate decisions, and contributing to the development of organ fibrosis.
Fibrosis results from defective wound healing processes often seen after chronic injury and/or inflammation in a range of organs. Progressive fibrotic events may lead to permanent organ damage/failure. The hallmark of fibrosis is the excessive accumulation of extracellular matrix (ECM), mostly produced by pathological myofibroblasts and myofibroblast-like cells. The Hippo signaling pathway is an evolutionarily conserved kinase cascade, which has been described well for its crucial role in cell proliferation, apoptosis, cell fate decisions, and stem cell self-renewal during development, homeostasis, and tissue regeneration. Recent investigations in clinical and pre-clinical models has shown that the Hippo signaling pathway is linked to the pathophysiology of fibrotic diseases in many organs including the lung, heart, liver, kidney, and skin. In this review, we have summarized recent evidences related to the contribution of the Hippo signaling pathway in the development of organ fibrosis. A better understanding of this pathway will guide us to dissect the pathophysiology of fibrotic disorders and develop effective tissue repair therapies.

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