Wnt, RSPO and Hippo Signalling in the Intestine and Intestinal Stem Cells

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378050%3A_____%2F18%3A00494342" target="_blank" >RIV/68378050:_____/18:00494342 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3390/genes9010020" target="_blank" >http://dx.doi.org/10.3390/genes9010020</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/genes9010020" target="_blank" >10.3390/genes9010020</a>

Result language

angličtina

Original language name

Wnt, RSPO and Hippo Signalling in the Intestine and Intestinal Stem Cells

Original language description

In this review, we address aspects of Wnt, R-Spondin (RSPO) and Hippo signalling, in both healthy and transformed intestinal epithelium. In intestinal stem cells (ISCs), the Wnt pathway is essential for intestinal crypt formation and renewal, whereas RSPO-mediated signalling mainly affects ISC numbers. In human colorectal cancer (CRC), aberrant Wnt signalling is the driving mechanism initiating this type of neoplasia. The signalling role of the RSPO-binding transmembrane proteins, the leucine-rich-repeat-containing G-protein-coupled receptors (LGRs), is possibly more pleiotropic and not only limited to the enhancement of Wnt signalling. There is growing evidence for multiple crosstalk between Hippo and Wnt/beta-catenin signalling. In the ON state, Hippo signalling results in serine/threonine phosphorylation of Yes-associated protein (YAP1) and tafazzin (TAZ), promoting formation of the beta-catenin destruction complex. In contrast, YAP1 or TAZ dephosphorylation (and YAP1 methylation) results in beta-catenin destruction complex deactivation and beta-catenin nuclear localization. In the Hippo OFF state, YAP1 and TAZ are engaged with the nuclear beta-catenin and participate in the beta-catenin-dependent transcription program. Interestingly, YAP1/TAZ are dispensable for intestinal homeostasis, however, upon Wnt pathway hyperactivation, the proteins together with TEA domain (TEAD) transcription factors drive the transcriptional program essential for intestinal cell transformation. In addition, in many CRC cells, YAP1 phosphorylation by YES proto-oncogene 1 tyrosine kinase (YES1) leads to the formation of a transcriptional complex that includes YAP1, beta-catenin and T-box 5 (TBX5) DNA-binding protein. YAP1/beta-catenin/T-box 5-mediated transcription is necessary for CRC cell proliferation and survival. Interestingly, dishevelled (DVL) appears to be an important mediator involved in both Wnt and Hippo (YAP1/TAZ) signalling and some of the DVL functions were assigned to the nuclear DVL pool. Wnt ligands can trigger alternative signalling that directly involves some of the Hippo pathway components such as YAP1, TAZ and TEADs. By upregulating Wnt pathway agonists, the alternative Wnt signalling can inhibit the canonical Wnt pathway activity.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10608 - Biochemistry and molecular biology

Project

<a href="/en/project/LO1419" target="_blank" >LO1419: Biomodels for Health - Center for model organisms</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Genes

ISSN

2073-4425

e-ISSN

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Volume of the periodical

9

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

18

Pages from-to

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UT code for WoS article

000424116500020

EID of the result in the Scopus database

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