Cover Image

CRKL enhances YAP signaling through binding and JNK/JUN pathway activation in liver cancer

The Hippo pathway transducers yes-associated protein (YAP) and WW-domain containing transcription regulator 1 (WWTR1/TAZ) are key regulators of liver tumorigenesis, promoting tumor formation and progression. Although the first inhibitors are in clinical trials, targeting the relevant upstream regula...

Full description

Saved in:
Bibliographic Details
Main Authors: Wesener, Marie C. (Author) , Weiler, Sofia Maria Elisabeth (Author) , Bissinger, Michaela (Author) , Klessinger, Tobias F. (Author) , Rose, Fabian (Author) , Merker, Sabine (Author) , Luzarowski, Marcin (Author) , Ruppert, Thomas (Author) , Helm, Barbara (Author) , Klingmüller, Ursula (Author) , Schirmacher, Peter (Author) , Breuhahn, Kai (Author)
Format: Article (Journal)
Language:English
Published: 5 August 2024
In: International journal of molecular sciences
Year: 2024, Volume: 25, Issue: 15, Pages: 1-18
ISSN:1422-0067
DOI:10.3390/ijms25158549
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.3390/ijms25158549
Verlag, kostenfrei, Volltext: https://www.mdpi.com/1422-0067/25/15/8549
Get full text
Author Notes:Marie C. Wesener, Sofia M. E. Weiler, Michaela Bissinger, Tobias F. Klessinger, Fabian Rose, Sabine Merker, Marcin Luzarowski, Thomas Ruppert, Barbara Helm, Ursula Klingmüller, Peter Schirmacher and Kai Breuhahn
Description
Summary:The Hippo pathway transducers yes-associated protein (YAP) and WW-domain containing transcription regulator 1 (WWTR1/TAZ) are key regulators of liver tumorigenesis, promoting tumor formation and progression. Although the first inhibitors are in clinical trials, targeting the relevant upstream regulators of YAP/TAZ activity could prove equally beneficial. To identify regulators of YAP/TAZ activity in hepatocarcinoma (HCC) cells, we carried out a proximity labelling approach (BioID) coupled with mass spectrometry. We verified CRK-like proto-oncogene adaptor protein (CRKL) as a new YAP-exclusive interaction partner. CRKL is highly expressed in HCC patients, and its expression is associated with YAP activity as well as poor survival prognosis. In vitro experiments demonstrated CRKL-dependent cell survival and the loss of YAP binding induced through actin disruption. Moreover, we delineated the activation of the JNK/JUN pathway by CRKL, which promoted YAP transcription. Our data illustrate that CRKL not only promoted YAP activity through its binding but also through the induction of YAP transcription by JNK/JUN activation. This emphasizes the potential use of targeting the JNK/JUN pathway to suppress YAP expression in HCC patients.
Item Description:Gesehen am 07.04.2025
Physical Description:Online Resource
ISSN:1422-0067
DOI:10.3390/ijms25158549

Similar Items