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Mousson A, Legrand M, Steffan T, Vauchelles R, Carl P, Gies JP, Lehmann M, Zuber G, De Mey J, Dujardin D, Sick E, Rondé P. Inhibiting FAK-Paxillin Interaction Reduces Migration and Invadopodia-Mediated Matrix Degradation in Metastatic Melanoma Cells. Cancers (Basel) 2021; 13:cancers13081871. [PMID: 33919725 PMCID: PMC8070677 DOI: 10.3390/cancers13081871] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/01/2021] [Accepted: 04/08/2021] [Indexed: 01/09/2023] Open
Abstract
Simple Summary The focal adhesion kinase (FAK) is over-expressed in a variety of human tumors and is involved in many aspects of the metastatic process. This has led to the development of small inhibitors of FAK kinase function which are currently evaluated in clinical trials. We demonstrate here that this class of inhibitors, while decreasing melanoma cell migration, increases invadopodia activity in metastatic melanoma cells. Searching for an alternative strategy to inhibit the oncogenic activity of FAK, we show that inhibiting FAK scaffolding function using a small peptide altering FAK–paxillin interactions reduces both migration and invadopodia-mediated matrix degradation in metastatic melanoma cells. Abstract The nonreceptor tyrosine kinase FAK is a promising target for solid tumor treatment because it promotes invasion, tumor progression, and drug resistance when overexpressed. Investigating the role of FAK in human melanoma cells, we found that both in situ and metastatic melanoma cells strongly express FAK, where it controls tumor cells’ invasiveness by regulating focal adhesion-mediated cell motility. Inhibiting FAK in human metastatic melanoma cells with either siRNA or a small inhibitor targeting the kinase domain impaired migration but led to increased invadopodia formation and extracellular matrix degradation. Using FAK mutated at Y397, we found that this unexpected increase in invadopodia activity is due to the lack of phosphorylation at this residue. To preserve FAK–Src interaction while inhibiting pro-migratory functions of FAK, we found that altering FAK–paxillin interaction, with either FAK mutation in the focal adhesion targeting (FAT) domain or a competitive inhibitor peptide mimicking paxillin LD domains drastically reduces cell migration and matrix degradation by preserving FAK activity in the cytoplasm. In conclusion, our data show that targeting FAK–paxillin interactions could be a potential therapeutic strategy to prevent metastasis formation, and molecules targeting this interface could be alternative to inhibitors of FAK kinase activity which display unexpected effects.
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Affiliation(s)
- Antoine Mousson
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Marlène Legrand
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Tania Steffan
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Romain Vauchelles
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Plateforme PIQ, Faculté de Pharmacie, 67401 Illkirch, France;
| | - Philippe Carl
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Jean-Pierre Gies
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Maxime Lehmann
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Guy Zuber
- Université de Strasbourg, CNRS UMR7242, Intervention Chémobiologique, ESBS, 67412 Illkirch, France;
| | - Jan De Mey
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Denis Dujardin
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Emilie Sick
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
| | - Philippe Rondé
- Université de Strasbourg, CNRS UMR7021, Laboratoire de Bioimagerie et Pathologies, Migration, Invasion et Microenvironnement, Faculté de Pharmacie, 67401 Illkirch, France; (A.M.); (M.L.); (T.S.); (P.C.); (J.-P.G.); (M.L.); (J.D.M.); (D.D.); (E.S.)
- Correspondence: ; Tel.: +33-3-6885-4184
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