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Article

EIF4G1 and RAN as Possible Drivers for Malignant Pleural Mesothelioma

1
Department of Biology, Genetic Unit, University of Pisa, 56126 Pisa, Italy
2
Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
3
Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
4
Department of Medicine, Surgery and Neurosciences, Siena University Hospital, 53100 Siena, Italy
5
Immuno-Oncology Laboratory, Department of Paediatric Haematology/Oncology and of Cell and Gene Therapy, Ospedale Pediatrico Bambino Gesù, IRCCS, 00165 Rome, Italy
6
Department of Internal Medicine V, University of Heidelberg, 69117 Heidelberg, Germany
7
Department of Bioscience, University of Milan, 20133 Milan, Italy
*
Author to whom correspondence should be addressed.
The authors contributed equally to this work.
The authors contributed equally to this work.
Int. J. Mol. Sci. 2020, 21(14), 4856; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21144856
Received: 15 May 2020 / Revised: 3 July 2020 / Accepted: 6 July 2020 / Published: 9 July 2020
For malignant pleural mesothelioma (MPM) novel therapeutic strategies are urgently needed. In a previous study, we identified 51 putative cancer genes over-expressed in MPM tissues and cell lines. Here, we deepened the study on nine of them (ASS1, EIF4G1, GALNT7, GLUT1, IGF2BP3 (IMP3), ITGA4, RAN, SOD1, and THBS2) to ascertain whether they are truly mesothelial cancer driver genes (CDGs) or genes overexpressed in an adaptive response to the tumoral progression (“passenger genes”). Through a fast siRNA-based screening, we evaluated the consequences of gene depletion on migration, proliferation, colony formation capabilities, and caspase activities of four MPM (Mero-14, Mero-25, IST-Mes2, and NCI-H28) and one SV40-immortalized mesothelial cell line (MeT-5A) as a non-malignant model. The depletion of EIF4G1 and RAN significantly reduced cell proliferation and colony formation and increased caspase activity. In particular, the findings for RAN resemble those observed for other types of cancer. Thus, we evaluated the in vitro effects of importazole (IPZ), a small molecule inhibitor of the interaction between RAN and importin-β. We showed that IPZ could have effects similar to those observed following RAN gene silencing. We also found that primary cell lines from one out of three MPM patients were sensitive to IPZ. As EIF4G1 and RAN deserve further investigation with additional in vitro and in vivo studies, they emerged as promising CDGs, suggesting that their upregulation could play a role in mesothelial tumorigenesis and aggressiveness. Furthermore, present data propose the molecular pathways dependent on RAN as a putative pharmacological target for MPM patients in the view of a future personalized medicine. View Full-Text
Keywords: cancer driving gene; EIF4G1; MPM; RAN; siRNA; importazole cancer driving gene; EIF4G1; MPM; RAN; siRNA; importazole
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MDPI and ACS Style

Dell’Anno, I.; Barbarino, M.; Barone, E.; Giordano, A.; Luzzi, L.; Bottaro, M.; Migliore, L.; Agostini, S.; Melani, A.; Melaiu, O.; Catalano, C.; Cipollini, M.; Silvestri, R.; Corrado, A.; Gemignani, F.; Landi, S. EIF4G1 and RAN as Possible Drivers for Malignant Pleural Mesothelioma. Int. J. Mol. Sci. 2020, 21, 4856. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21144856

AMA Style

Dell’Anno I, Barbarino M, Barone E, Giordano A, Luzzi L, Bottaro M, Migliore L, Agostini S, Melani A, Melaiu O, Catalano C, Cipollini M, Silvestri R, Corrado A, Gemignani F, Landi S. EIF4G1 and RAN as Possible Drivers for Malignant Pleural Mesothelioma. International Journal of Molecular Sciences. 2020; 21(14):4856. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21144856

Chicago/Turabian Style

Dell’Anno, Irene, Marcella Barbarino, Elisa Barone, Antonio Giordano, Luca Luzzi, Maria Bottaro, Loredana Migliore, Silvia Agostini, Alessandra Melani, Ombretta Melaiu, Calogerina Catalano, Monica Cipollini, Roberto Silvestri, Alda Corrado, Federica Gemignani, and Stefano Landi. 2020. "EIF4G1 and RAN as Possible Drivers for Malignant Pleural Mesothelioma" International Journal of Molecular Sciences 21, no. 14: 4856. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21144856

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