The Hippo pathway effector TAZ induces TEAD-dependent liver inflammation and tumors

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The Hippo signaling pathway regulates organ size and plays critical roles in maintaining tissue growth, homeostasis, and regeneration. Dysregulated in a wide spectrum of cancers, in mammals, this pathway is regulated by two key effectors, YAP and TAZ, that may functionally overlap. We found that TAZ promoted liver inflammation and tumor development. The expression of TAZ, but not YAP, in human liver tumors positively correlated with the expression of proinflammatory cytokines. Hyperactivated TAZ induced substantial myeloid cell infiltration into the liver and the secretion of proinflammatory cytokines through a TEAD-dependent mechanism. Furthermore, tumors with hyperactivated YAP and TAZ had distinct transcriptional signatures, which included the increased expression of inflammatory cytokines in TAZ-driven tumors. Our study elucidated a previously uncharacterized link between TAZ activity and inflammatory responses that influence tumor development in the liver.
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Issue Date
2018-09
Language
English
Article Type
Article
Keywords

EPITHELIAL-MESENCHYMAL TRANSITION; YES-ASSOCIATED PROTEIN; HEPATOCELLULAR-CARCINOMA; HUMAN CANCER; MICE; YAP; CARCINOGENESIS; DROSOPHILA; ONCOGENE; DEFECTS

Citation

SCIENCE SIGNALING, v.11, no.547

ISSN
1945-0877
DOI
10.1126/scisignal.aaj1757
URI
http://hdl.handle.net/10203/245886
Appears in Collection
BS-Journal Papers(저널논문)
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