Constitutive β-catenin signaling by the viral chemokine receptor US28.

Chronic activation of Wnt/β-catenin signaling is found in a variety of human malignancies including melanoma, colorectal and hepatocellular carcinomas. Interestingly, expression of the HCMV-encoded chemokine receptor US28 in intestinal epithelial cells promotes intestinal neoplasia in transgenic mic...

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Main Authors: Ellen V Langemeijer, Erik Slinger, Sabrina de Munnik, Andreas Schreiber, David Maussang, Henry Vischer, Folkert Verkaar, Rob Leurs, Marco Siderius, Martine J Smit
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2012-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23145028/?tool=EBI
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author Ellen V Langemeijer
Erik Slinger
Sabrina de Munnik
Andreas Schreiber
David Maussang
Henry Vischer
Folkert Verkaar
Rob Leurs
Marco Siderius
Martine J Smit
author_facet Ellen V Langemeijer
Erik Slinger
Sabrina de Munnik
Andreas Schreiber
David Maussang
Henry Vischer
Folkert Verkaar
Rob Leurs
Marco Siderius
Martine J Smit
author_sort Ellen V Langemeijer
collection DOAJ
description Chronic activation of Wnt/β-catenin signaling is found in a variety of human malignancies including melanoma, colorectal and hepatocellular carcinomas. Interestingly, expression of the HCMV-encoded chemokine receptor US28 in intestinal epithelial cells promotes intestinal neoplasia in transgenic mice, which is associated with increased nuclear accumulation of β-catenin. In this study we show that this viral receptor constitutively activates β-catenin and enhances β-catenin-dependent transcription. Our data illustrate that this viral receptor does not activate β-catenin via the classical Wnt/Frizzled signaling pathway. Analysis of US28 mediated signaling indicates the involvement of the Rho-Rho kinase (ROCK) pathway in the activation of β-catenin. Moreover, cells infected with HCMV show significant increases in β-catenin stabilization and signaling, which is mediated to a large extent by expression of US28. The modulation of the β-catenin signal transduction pathway by a viral chemokine receptor provides alternative regulation of this pathway, with potential relevance for the development of colon cancer and virus-associated diseases.
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spelling doaj.art-dc6c07a9a5084249b47881e5dc3e6aaf2022-12-21T21:43:35ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-01711e4893510.1371/journal.pone.0048935Constitutive β-catenin signaling by the viral chemokine receptor US28.Ellen V LangemeijerErik SlingerSabrina de MunnikAndreas SchreiberDavid MaussangHenry VischerFolkert VerkaarRob LeursMarco SideriusMartine J SmitChronic activation of Wnt/β-catenin signaling is found in a variety of human malignancies including melanoma, colorectal and hepatocellular carcinomas. Interestingly, expression of the HCMV-encoded chemokine receptor US28 in intestinal epithelial cells promotes intestinal neoplasia in transgenic mice, which is associated with increased nuclear accumulation of β-catenin. In this study we show that this viral receptor constitutively activates β-catenin and enhances β-catenin-dependent transcription. Our data illustrate that this viral receptor does not activate β-catenin via the classical Wnt/Frizzled signaling pathway. Analysis of US28 mediated signaling indicates the involvement of the Rho-Rho kinase (ROCK) pathway in the activation of β-catenin. Moreover, cells infected with HCMV show significant increases in β-catenin stabilization and signaling, which is mediated to a large extent by expression of US28. The modulation of the β-catenin signal transduction pathway by a viral chemokine receptor provides alternative regulation of this pathway, with potential relevance for the development of colon cancer and virus-associated diseases.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23145028/?tool=EBI
spellingShingle Ellen V Langemeijer
Erik Slinger
Sabrina de Munnik
Andreas Schreiber
David Maussang
Henry Vischer
Folkert Verkaar
Rob Leurs
Marco Siderius
Martine J Smit
Constitutive β-catenin signaling by the viral chemokine receptor US28.
PLoS ONE
title Constitutive β-catenin signaling by the viral chemokine receptor US28.
title_full Constitutive β-catenin signaling by the viral chemokine receptor US28.
title_fullStr Constitutive β-catenin signaling by the viral chemokine receptor US28.
title_full_unstemmed Constitutive β-catenin signaling by the viral chemokine receptor US28.
title_short Constitutive β-catenin signaling by the viral chemokine receptor US28.
title_sort constitutive β catenin signaling by the viral chemokine receptor us28
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23145028/?tool=EBI
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