Cited by 412Liver physiology and pathologyHippo pathway signaling and YAP/TAZLiver Disease Diagnosis and Treatment

The Hippo pathway effector YAP controls mouse hepatic stellate cell activation

Mannaerts, Inge, Leite, Sofia Batista, Verhulst, Stefaan, Claerhout, Sofie, Eysackers, Nathalie, Thoen, Lien F.R., Hoorens, Anne, Reynaert, Hendrik +2 more·2015·Journal of Hepatology

Abstract

Background & aims Hepatic stellate cell activation is a wound-healing response to liver injury. However, continued activation of stellate cells during chronic liver damage causes excessive matrix deposition and the formation of pathological scar tissue leading to fibrosis and ultimately cirrhosis. The importance of sustained stellate cell activation for this pathological process is well recognized, and several signalling pathways that can promote stellate cell activation have been identified, such as the TGFβ-, PDGF-, and LPS-dependent pathways. However, the mechanisms that trigger and drive the early steps in activation are not well understood. Methods and results We identified the Hippo pathway and its effector YAP as a key pathway that controls stellate cell activation. YAP is a transcriptional co-activator and we found that it drives the earliest changes in gene expression during stellate cell activation. Activation of stellate cells in vivo by CCl4 administration to mice or activation in vitro caused rapid activation of YAP as revealed by its nuclear translocation and by the induction of YAP target genes. YAP was also activated in stellate cells of human fibrotic livers as evidenced by its nuclear localization. Importantly, knockdown of YAP expression or pharmacological inhibition of YAP prevented hepatic stellate cell activation in vitro and pharmacological inhibition of YAP impeded fibrogenesis in mice. Conclusions YAP activation is a critical driver of hepatic stellat…

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Crossref · 10.1016/j.jhep.2015.04.011

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Authors
Mannaerts, I., Leite, S. B., Verhulst, S., Claerhout, S., Eysackers, N., Thoen, L. F. R., Hoorens, A., Reynaert, H., Halder, G., & van Grunsven, L. A.
Affiliations
  • Vrije Universiteit Brussel (BE)
  • KU Leuven (BE)
  • Universitair Ziekenhuis Brussel (BE)
Venue
Journal of Hepatology
Publisher
Elsevier BV
Published
2015-09
Volume
63
Issue
3
Pages
679-688
ISSN
0168-8278 (ISSN-L)
OpenAlex
W2154530183
Cited by
410
References
46
Citations by year
2026: 37 · 2025: 44 · 2024: 43 · 2023: 29 · 2022: 60 · 2021: 49 · 2020: 35 · 2019: 38 · 2018: 29 · 2017: 23 · 2016: 19 · 2015: 4
FWCI
14.82
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hepatology (publishedVersion)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
  • VUBIR (Vrije Universiteit Brussel) (submittedVersion)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
Keywords
YAP, Hippo signaling pathway, hepatic stellate cell activation, liver fibrosis, YAP inhibition, carbon tetrachloride-induced liver injury, nuclear translocation, transcriptional coactivator, liver cirrhosis, fibrogenesis
MeSH terms
Hippo Signaling Pathway, YAP-Signaling Proteins, Animals, Humans, Liver Cirrhosis, Mice, Inbred BALB C, Phosphoproteins, Transcription Factors, Signal Transduction, Protein Serine-Threonine Kinases, Cell Cycle Proteins, Adaptor Proteins, Signal Transducing, Mice, Hepatic Stellate Cells

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