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Open AccessArticle

Proteomics-Based Evidence for a Pro-Oncogenic Role of ESRP1 in Human Colorectal Cancer Cells

Department of Veterinary Science, University of Turin, 10126 Turin, Italy
Molecular Biotechnology Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, 10126 Turin, Italy
Center for Experimental Research and Medical Studies, Azienda Universitaria Ospedaliera Città della Salute e della Scienza, 10126 Turin, Italy
Center for Translational Genomics and Bioinformatics, San Raffaele Scientific Institute IRCCS, 20132 Milan, Italy
Institute of Biostructure and Bioimaging, CNR c/o Molecular Biotechnology Centre, 10126 Turin, Italy
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
These authors jointly supervised this work.
Int. J. Mol. Sci. 2020, 21(2), 575;
Received: 29 October 2019 / Revised: 10 January 2020 / Accepted: 14 January 2020 / Published: 16 January 2020
(This article belongs to the Special Issue Molecular and Translational Research on Colorectal Cancer)
The RNA-binding protein, Epithelial Splicing Regulatory Protein 1 (ESRP1) can promote or suppress tumorigenesis depending on the cell type and disease context. In colorectal cancer, we have previously shown that aberrantly high ESRP1 expression can drive tumor progression. In order to unveil the mechanisms by which ESRP1 can modulate cancer traits, we searched for proteins affected by modulation of Esrp1 in two human colorectal cancer cell lines, HCA24 and COLO320DM, by proteomics analysis. Proteins hosted by endogenous ESRP1 ribonucleoprotein complex in HCA24 cells were also analyzed following RNA-immunoprecipitation. Proteomics data were complemented with bioinformatics approach to exploit publicly available data on protein-protein interaction (PPI). Gene Ontology was analysed to identify a common molecular signature possibly explaining the pro-tumorigenic role of ESRP1. Interestingly, proteins identified herein support a role for ESRP1 in response to external stimulus, regulation of cell cycle and hypoxia. Our data provide further insights into factors affected by and entwined with ESRP1 in colorectal cancer. View Full-Text
Keywords: ESRP1; proteomics; bioinformatics; colorectal cancer ESRP1; proteomics; bioinformatics; colorectal cancer
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MDPI and ACS Style

Ala, U.; Manco, M.; Mandili, G.; Tolosano, E.; Novelli, F.; Provero, P.; Altruda, F.; Fagoonee, S. Proteomics-Based Evidence for a Pro-Oncogenic Role of ESRP1 in Human Colorectal Cancer Cells. Int. J. Mol. Sci. 2020, 21, 575.

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