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Vidal-Cruchez O, Nicolini VJ, Rete T, Jacquet K, Rezzonico R, Lacoux C, Domdom MA, Roméo B, Roux J, Hubstenberger A, Mari B, Mograbi B, Hofman P, Brest P. KRAS and NRAS Translation Is Increased upon MEK Inhibitors-Induced Processing Bodies Dissolution. Cancers (Basel) 2023; 15:3078. [PMID: 37370689 DOI: 10.3390/cancers15123078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Overactivation of the mitogen-activated protein kinase (MAPK) pathway is a critical driver of many human cancers. However, therapies directly targeting this pathway lead to cancer drug resistance. Resistance has been linked to compensatory RAS overexpression, but the mechanisms underlying this response remain unclear. Here, we find that MEK inhibitors (MEKi) are associated with an increased translation of the KRAS and NRAS oncogenes through a mechanism involving dissolution of processing body (P-body) biocondensates. This effect is seen across different cell types and is extremely dynamic since removal of MEKi and ERK reactivation result in reappearance of P-bodies and reduced RAS-dependent signaling. Moreover, we find that P-body scaffold protein levels negatively impact RAS expression. Overall, we describe a new feedback loop mechanism involving biocondensates such as P-bodies in the translational regulation of RAS proteins and MAPK signaling.
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Affiliation(s)
- Olivia Vidal-Cruchez
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
| | - Victoria J Nicolini
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
| | - Tifenn Rete
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
| | - Karine Jacquet
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
| | - Roger Rezzonico
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
- Université Côte d'Azur, CNRS, INSERM, CNRS UMR7275, IPMC, 06560 Valbonne, France
| | - Caroline Lacoux
- Université Côte d'Azur, CNRS UMR7275, IPMC, 06560 Valbonne, France
| | - Marie-Angela Domdom
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
| | - Barnabé Roméo
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
| | - Jérémie Roux
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
- Université Côte d'Azur, CNRS UMR7275, IPMC, 06560 Valbonne, France
| | - Arnaud Hubstenberger
- Université Côte d'Azur, Institut Biologie Valrose (IBV), CNRS, Inserm, 06108 Nice, France
| | - Bernard Mari
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
- Université Côte d'Azur, CNRS UMR7275, IPMC, 06560 Valbonne, France
| | - Baharia Mograbi
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
| | - Paul Hofman
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
- Université Côte d'Azur, CHU-Nice, Pasteur Hospital, Laboratory of Clinical and Experimental Pathology, Hospital-Integrated Biobank (BB-0033-00025), 06001 Nice, France
| | - Patrick Brest
- Université Côte d'Azur, Institute of Research on Cancer and Aging of Nice (IRCAN), CNRS, INSERM, Centre Antoine Lacassagne, 28, Avenue de Valombrose, 06107 Nice, France
- FHU-OncoAge, IHU-RESPIRera, 06001 Nice, France
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