Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activities

Summary: The transcriptional co-activator YAP forms complexes with distinct transcription factors, controlling cell fate decisions, such as proliferation and apoptosis. However, the mechanisms underlying its context-dependent function are poorly defined. This study explores the interplay between the...

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Main Authors: Milad Ghomlaghi, Mandy Theocharous, Nhan Hoang, Sung-Young Shin, Alex von Kriegsheim, Eric O’ Neill, Tao Zhang, Lan K. Nguyen
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:iScience
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Online Access:http://www.sciencedirect.com/science/article/pii/S2589004224002529
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author Milad Ghomlaghi
Mandy Theocharous
Nhan Hoang
Sung-Young Shin
Alex von Kriegsheim
Eric O’ Neill
Tao Zhang
Lan K. Nguyen
author_facet Milad Ghomlaghi
Mandy Theocharous
Nhan Hoang
Sung-Young Shin
Alex von Kriegsheim
Eric O’ Neill
Tao Zhang
Lan K. Nguyen
author_sort Milad Ghomlaghi
collection DOAJ
description Summary: The transcriptional co-activator YAP forms complexes with distinct transcription factors, controlling cell fate decisions, such as proliferation and apoptosis. However, the mechanisms underlying its context-dependent function are poorly defined. This study explores the interplay between the TGF-β and Hippo pathways and their influence on YAP’s association with specific transcription factors. By integrating iterative mathematical modeling with experimental validation, we uncover molecular switches, predominantly controlled by RASSF1A and ITCH, which dictate the formation of YAP-SMAD (proliferative) and YAP-p73 (apoptotic) complexes. Our results show that RASSF1A enhances the formation of apoptotic complexes, whereas ITCH promotes the formation of proliferative complexes. Notably, higher levels of ITCH transform YAP-SMAD activity from a transient to a sustained state, impacting cellular behaviors. Extending these findings to various breast cancer cell lines highlights the role of cellular context in YAP regulation. Our study provides new insights into the mechanisms of YAP transcriptional activities and their therapeutic implications.
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spelling doaj.art-ac43d1e023b14adeb764bd7c42e1ff0f2024-02-16T04:29:52ZengElsevieriScience2589-00422024-03-01273109031Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activitiesMilad Ghomlaghi0Mandy Theocharous1Nhan Hoang2Sung-Young Shin3Alex von Kriegsheim4Eric O’ Neill5Tao Zhang6Lan K. Nguyen7Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC 3800, Australia; Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, AustraliaDepartment of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC 3800, Australia; Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, AustraliaDepartment of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC 3800, Australia; Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, AustraliaDepartment of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC 3800, Australia; Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, AustraliaEdinburgh Cancer Research UK Centre, Institute of Genetics and Molecular Medicine, The University of Edinburgh, Crewe Road South, Edinburgh EH4 2XR, UKCRUK/MRC Institute for Radiation Oncology and Department of Oncology, University of Oxford, Oxford OX3 7DQ, UKDepartment of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC 3800, Australia; Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, AustraliaDepartment of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC 3800, Australia; Biomedicine Discovery Institute, Monash University, Clayton, VIC 3800, Australia; Corresponding authorSummary: The transcriptional co-activator YAP forms complexes with distinct transcription factors, controlling cell fate decisions, such as proliferation and apoptosis. However, the mechanisms underlying its context-dependent function are poorly defined. This study explores the interplay between the TGF-β and Hippo pathways and their influence on YAP’s association with specific transcription factors. By integrating iterative mathematical modeling with experimental validation, we uncover molecular switches, predominantly controlled by RASSF1A and ITCH, which dictate the formation of YAP-SMAD (proliferative) and YAP-p73 (apoptotic) complexes. Our results show that RASSF1A enhances the formation of apoptotic complexes, whereas ITCH promotes the formation of proliferative complexes. Notably, higher levels of ITCH transform YAP-SMAD activity from a transient to a sustained state, impacting cellular behaviors. Extending these findings to various breast cancer cell lines highlights the role of cellular context in YAP regulation. Our study provides new insights into the mechanisms of YAP transcriptional activities and their therapeutic implications.http://www.sciencedirect.com/science/article/pii/S2589004224002529Biological sciencesCell biology
spellingShingle Milad Ghomlaghi
Mandy Theocharous
Nhan Hoang
Sung-Young Shin
Alex von Kriegsheim
Eric O’ Neill
Tao Zhang
Lan K. Nguyen
Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activities
iScience
Biological sciences
Cell biology
title Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activities
title_full Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activities
title_fullStr Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activities
title_full_unstemmed Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activities
title_short Integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating Yes-associated protein transcriptional activities
title_sort integrative modeling and analysis of signaling crosstalk reveal molecular switches coordinating yes associated protein transcriptional activities
topic Biological sciences
Cell biology
url http://www.sciencedirect.com/science/article/pii/S2589004224002529
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