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Muharram G, Sahgal P, Korpela T, De Franceschi N, Kaukonen R, Clark K, Tulasne D, Carpén O, Ivaska J. Tensin-4-dependent MET stabilization is essential for survival and proliferation in carcinoma cells. Dev Cell 2014; 29:421-36. [PMID: 24814316 PMCID: PMC4118019 DOI: 10.1016/j.devcel.2014.03.024] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 02/05/2014] [Accepted: 03/31/2014] [Indexed: 12/25/2022]
Abstract
Inappropriate MET tyrosine kinase receptor signaling is detected in almost all types of human cancer and contributes to malignant growth and MET dependency via proliferative and antiapoptotic activities. Independently, Tensin-4 (TNS4) is emerging as a putative oncogene in many cancer types, but the mechanisms of TNS4 oncogenic activity are not well established. Here, we demonstrate that TNS4 directly interacts with phosphorylated MET via the TNS4 SH2-domain to positively regulate cell survival, proliferation, and migration, through increased MET protein stability. In addition, TNS4 interaction with β1-integrin cytoplasmic tail positively regulates β1-integrin stability. Loss of TNS4 or disruption of MET-TNS4 interaction triggers MET trafficking toward the lysosomal compartment that is associated with excessive degradation of MET and triggers MET-addicted carcinoma cell death in vitro and in vivo. Significant correlation between MET and TNS4 expression in human colon carcinoma and ovarian carcinoma suggests TNS4 plays a critical role in MET stability in cancer. A direct interaction is identified between MET and Tensin-4 TNS4 protects MET from degradation, thus promoting its oncogenic activity TNS4 and MET are significantly coexpressed in human carcinomas Loss of TNS4 inhibits survival of MET-dependent tumors
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Affiliation(s)
- Ghaffar Muharram
- Turku Centre for Biotechnology, University of Turku, Turku, 20520, Finland; VTT Technical Research Centre of Finland, Turku, 20521, Finland
| | - Pranshu Sahgal
- Turku Centre for Biotechnology, University of Turku, Turku, 20520, Finland; VTT Technical Research Centre of Finland, Turku, 20521, Finland
| | - Taina Korpela
- Department of Pathology, University of Turku, Turku, 20520, Finland; Department of Pathology, Turku University Hospital, Turku, 20520, Finland
| | - Nicola De Franceschi
- Turku Centre for Biotechnology, University of Turku, Turku, 20520, Finland; VTT Technical Research Centre of Finland, Turku, 20521, Finland
| | - Riina Kaukonen
- Turku Centre for Biotechnology, University of Turku, Turku, 20520, Finland; VTT Technical Research Centre of Finland, Turku, 20521, Finland
| | - Katherine Clark
- Department of Biochemistry, University of Leicester, Leicester LE1 9HN, UK
| | - David Tulasne
- Institut de Biologie de Lille-UMR8161, CNRS, 59021 Lille, France
| | - Olli Carpén
- Department of Pathology, University of Turku, Turku, 20520, Finland; Department of Pathology, Turku University Hospital, Turku, 20520, Finland
| | - Johanna Ivaska
- Turku Centre for Biotechnology, University of Turku, Turku, 20520, Finland; VTT Technical Research Centre of Finland, Turku, 20521, Finland; Department of Biochemistry and Food Chemistry, University of Turku, 20520, Finland.
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